diff --git a/.github/workflows/cli.yml b/.github/workflows/cli.yml
index ef5195c241..5c8db7a668 100644
--- a/.github/workflows/cli.yml
+++ b/.github/workflows/cli.yml
@@ -3,11 +3,14 @@ on:
   push:
     branches:
       - main
+      - v3-dev-main
     tags:
       - v2.*
+      - v3.*
   pull_request:
     branches:
       - main
+      - v3-dev-main
 permissions:
   contents: read
 jobs:
@@ -15,7 +18,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        go: [1.17.x, 1.18.x, 1.19.x]
+        go: [1.18.x, 1.19.x]
     name: ${{ matrix.os }} @ Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     steps:
@@ -43,13 +46,17 @@ jobs:
       - if: matrix.go == '1.19.x' && matrix.os == 'ubuntu-latest'
         run: make generate
       - run: make diffcheck
-      - if: matrix.go == '1.19.x' && matrix.os == 'ubuntu-latest'
+      # TODO: switch once v3 is released {{
+      # - if: matrix.go == '1.19.x' && matrix.os == 'ubuntu-latest'
+      - if: 'false'
         run: make v2diff
+      # }}
       - if: success() && matrix.go == '1.19.x' && matrix.os == 'ubuntu-latest'
         uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true
+
   test-docs:
     name: test-docs
     runs-on: ubuntu-latest
@@ -66,12 +73,15 @@ jobs:
       - run: make ensure-gfmrun
       - run: make gfmrun
         env:
-          FLAGS: --walk docs/v2/
+          FLAGS: --walk docs/v3/
       - run: make diffcheck
   publish:
     permissions:
       contents: write
-    if: startswith(github.ref, 'refs/tags/')
+    # TODO: switch once v3 is released {{
+    # if: startswith(github.ref, 'refs/tags/')
+    if: 'false'
+    # }}
     name: publish
     needs: [test-docs]
     runs-on: ubuntu-latest
diff --git a/.gitignore b/.gitignore
index d7d26b1fca..3c6768f8c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,9 +5,8 @@
 .envrc
 .idea
 /.local/
+/cmd/urfave-cli-genflags/urfave-cli-genflags
 /site/
 coverage.txt
 internal/*/built-example
 vendor
-/cmd/urfave-cli-genflags/urfave-cli-genflags
-*.exe
diff --git a/Makefile b/Makefile
index f0d41905ea..a167052506 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@
 GO_RUN_BUILD := go run internal/build/build.go
 
 .PHONY: all
-all: generate vet test check-binary-size gfmrun yamlfmt v2diff
+all: generate vet test check-binary-size gfmrun yamlfmt
 
 # NOTE: this is a special catch-all rule to run any of the commands
 # defined in internal/build/build.go with optional arguments passed
diff --git a/README.md b/README.md
index eaed356307..3ac693bdb0 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # cli
 
-[![GoDoc](https://godoc.org/github.com/urfave/cli?status.svg)](https://pkg.go.dev/github.com/urfave/cli/v2)
+[![GoDoc](https://godoc.org/github.com/urfave/cli?status.svg)](https://pkg.go.dev/github.com/urfave/cli/v3)
 [![codebeat](https://codebeat.co/badges/0a8f30aa-f975-404b-b878-5fab3ae1cc5f)](https://codebeat.co/projects/github-com-urfave-cli)
 [![Go Report Card](https://goreportcard.com/badge/urfave/cli)](https://goreportcard.com/report/urfave/cli)
 [![codecov](https://codecov.io/gh/urfave/cli/branch/main/graph/badge.svg)](https://codecov.io/gh/urfave/cli)
diff --git a/altsrc/flag.go b/altsrc/flag.go
index d8256d7605..50ebd9e368 100644
--- a/altsrc/flag.go
+++ b/altsrc/flag.go
@@ -6,7 +6,7 @@ import (
 	"strconv"
 	"syscall"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 // FlagInputSourceExtension is an extension interface of cli.Flag that
diff --git a/altsrc/flag_generated.go b/altsrc/flag_generated.go
index 9490417e47..2a521d1988 100644
--- a/altsrc/flag_generated.go
+++ b/altsrc/flag_generated.go
@@ -5,7 +5,7 @@ package altsrc
 import (
 	"flag"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 // BoolFlag is the flag type that wraps cli.BoolFlag to allow
diff --git a/altsrc/flag_test.go b/altsrc/flag_test.go
index ad66dab43c..7f85d7401d 100644
--- a/altsrc/flag_test.go
+++ b/altsrc/flag_test.go
@@ -10,7 +10,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 type testApplyInputSource struct {
diff --git a/altsrc/input_source_context.go b/altsrc/input_source_context.go
index 24579d16a9..4cd8392450 100644
--- a/altsrc/input_source_context.go
+++ b/altsrc/input_source_context.go
@@ -3,7 +3,7 @@ package altsrc
 import (
 	"time"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 // InputSourceContext is an interface used to allow
diff --git a/altsrc/json_command_test.go b/altsrc/json_command_test.go
index f2d3a8196d..e39dabc06c 100644
--- a/altsrc/json_command_test.go
+++ b/altsrc/json_command_test.go
@@ -6,7 +6,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 const (
diff --git a/altsrc/json_source_context.go b/altsrc/json_source_context.go
index ac0532076c..5589d592a9 100644
--- a/altsrc/json_source_context.go
+++ b/altsrc/json_source_context.go
@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 // NewJSONSourceFromFlagFunc returns a func that takes a cli.Context
diff --git a/altsrc/map_input_source.go b/altsrc/map_input_source.go
index 2505b270eb..4bac92c271 100644
--- a/altsrc/map_input_source.go
+++ b/altsrc/map_input_source.go
@@ -6,7 +6,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 // MapInputSource implements InputSourceContext to return
diff --git a/altsrc/toml_command_test.go b/altsrc/toml_command_test.go
index d6def0efd2..9e52435e45 100644
--- a/altsrc/toml_command_test.go
+++ b/altsrc/toml_command_test.go
@@ -6,7 +6,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 func TestCommandTomFileTest(t *testing.T) {
diff --git a/altsrc/toml_file_loader.go b/altsrc/toml_file_loader.go
index dfc9b7b1c8..0e614e3468 100644
--- a/altsrc/toml_file_loader.go
+++ b/altsrc/toml_file_loader.go
@@ -5,7 +5,7 @@ import (
 	"reflect"
 
 	"github.com/BurntSushi/toml"
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 type tomlMap struct {
diff --git a/altsrc/yaml_command_test.go b/altsrc/yaml_command_test.go
index a297bd2d28..ed67d800f9 100644
--- a/altsrc/yaml_command_test.go
+++ b/altsrc/yaml_command_test.go
@@ -6,7 +6,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 func TestCommandYamlFileTest(t *testing.T) {
diff --git a/altsrc/yaml_file_loader.go b/altsrc/yaml_file_loader.go
index 62e8965782..b1f6c843f1 100644
--- a/altsrc/yaml_file_loader.go
+++ b/altsrc/yaml_file_loader.go
@@ -9,7 +9,7 @@ import (
 	"runtime"
 	"strings"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 
 	"gopkg.in/yaml.v3"
 )
diff --git a/altsrc/yaml_file_loader_test.go b/altsrc/yaml_file_loader_test.go
index 814586b917..37455c6c8c 100644
--- a/altsrc/yaml_file_loader_test.go
+++ b/altsrc/yaml_file_loader_test.go
@@ -6,8 +6,8 @@ import (
 	"os"
 	"time"
 
-	"github.com/urfave/cli/v2"
-	"github.com/urfave/cli/v2/altsrc"
+	"github.com/urfave/cli/v3"
+	"github.com/urfave/cli/v3/altsrc"
 )
 
 func ExampleApp_Run_yamlFileLoaderDuration() {
diff --git a/app_test.go b/app_test.go
index 7091c40ef9..b85848f740 100644
--- a/app_test.go
+++ b/app_test.go
@@ -2486,6 +2486,26 @@ func (c *customBoolFlag) IsSet() bool {
 	return false
 }
 
+func (c *customBoolFlag) IsRequired() bool {
+	return false
+}
+
+func (c *customBoolFlag) IsVisible() bool {
+	return false
+}
+
+func (c *customBoolFlag) GetCategory() string {
+	return ""
+}
+
+func (c *customBoolFlag) GetEnvVars() []string {
+	return nil
+}
+
+func (c *customBoolFlag) GetDefaultText() string {
+	return ""
+}
+
 func TestCustomFlagsUnused(t *testing.T) {
 	app := &App{
 		Flags:  []Flag{&customBoolFlag{"custom"}},
diff --git a/cmd/urfave-cli-genflags/generated.gotmpl b/cmd/urfave-cli-genflags/generated.gotmpl
index 3720e6a1b8..6b16829841 100644
--- a/cmd/urfave-cli-genflags/generated.gotmpl
+++ b/cmd/urfave-cli-genflags/generated.gotmpl
@@ -47,21 +47,38 @@ func (f *{{.TypeName}}) Names() []string {
   return {{$.UrfaveCLINamespace}}FlagNames(f.Name, f.Aliases)
 }
 
-{{end}}{{/* /if .GenerateFlagInterface */}}
-
-{{if .GenerateRequiredFlagInterface}}
 // IsRequired returns whether or not the flag is required
 func (f *{{.TypeName}}) IsRequired() bool {
   return f.Required
 }
-{{end}}{{/* /if .GenerateRequiredFlagInterface */}}
 
-{{if .GenerateVisibleFlagInterface}}
 // IsVisible returns true if the flag is not hidden, otherwise false
 func (f *{{.TypeName}}) IsVisible() bool {
 	return !f.Hidden
 }
-{{end}}{{/* /if .GenerateVisibleFlagInterface */}}
+
+// GetCategory returns the category of the flag
+func (f *{{.TypeName}}) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *{{.TypeName}}) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *{{.TypeName}}) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *{{.TypeName}}) TakesValue() bool {
+  return "{{.TypeName }}" != "BoolFlag"
+}
+
+{{end}}{{/* /if .GenerateFlagInterface */}}
+
 {{end}}{{/* /range .SortedFlagTypes */}}
 
 // vim{{/* 👻 */}}:ro
diff --git a/cmd/urfave-cli-genflags/generated_altsrc.gotmpl b/cmd/urfave-cli-genflags/generated_altsrc.gotmpl
index 737eb82d17..8fc6d0ea2e 100644
--- a/cmd/urfave-cli-genflags/generated_altsrc.gotmpl
+++ b/cmd/urfave-cli-genflags/generated_altsrc.gotmpl
@@ -2,11 +2,6 @@
 
 package {{.PackageName}}
 
-import (
-	"flag"
-	"github.com/urfave/cli/v2"
-)
-
 {{range .SortedFlagTypes}}
 // {{.TypeName}} is the flag type that wraps cli.{{.TypeName}} to allow
 // for other values to be specified
diff --git a/cmd/urfave-cli-genflags/generated_test.gotmpl b/cmd/urfave-cli-genflags/generated_test.gotmpl
index 52de4e4bf4..83229b06ba 100644
--- a/cmd/urfave-cli-genflags/generated_test.gotmpl
+++ b/cmd/urfave-cli-genflags/generated_test.gotmpl
@@ -10,31 +10,30 @@ func Test{{.TypeName}}_SatisfiesFlagInterface(t *testing.T) {
   _ = f.IsSet()
   _ = f.Names()
 }
-{{end}}
-
-{{if .GenerateFmtStringerInterface}}
-func Test{{.TypeName}}_SatisfiesFmtStringerInterface(t *testing.T) {
-  var f fmt.Stringer = &{{$.UrfaveCLITestNamespace}}{{.TypeName}}{}
 
-  _ = f.String()
-}
-{{end}}
-
-{{if .GenerateRequiredFlagInterface}}
 func Test{{.TypeName}}_SatisfiesRequiredFlagInterface(t *testing.T) {
   var f {{$.UrfaveCLITestNamespace}}RequiredFlag = &{{$.UrfaveCLITestNamespace}}{{.TypeName}}{}
 
   _ = f.IsRequired()
 }
-{{end}}
 
-{{if .GenerateVisibleFlagInterface}}
 func Test{{.TypeName}}_SatisfiesVisibleFlagInterface(t *testing.T) {
   var f {{$.UrfaveCLITestNamespace}}VisibleFlag = &{{$.UrfaveCLITestNamespace}}{{.TypeName}}{}
 
   _ = f.IsVisible()
 }
+
 {{end}}
+
+{{if .GenerateFmtStringerInterface}}
+func Test{{.TypeName}}_SatisfiesFmtStringerInterface(t *testing.T) {
+  var f fmt.Stringer = &{{$.UrfaveCLITestNamespace}}{{.TypeName}}{}
+
+  _ = f.String()
+}
+{{end}}
+
+
 {{end}}
 
 // vim{{/* 👻 */}}:ro
diff --git a/docs/v2/examples/flags.md b/docs/v2/examples/flags.md
index eaec6f4a39..492f38bb00 100644
--- a/docs/v2/examples/flags.md
+++ b/docs/v2/examples/flags.md
@@ -240,7 +240,7 @@ For example this:
 
 <!-- {
   "args": ["&#45;&#45;help"],
-  "output": ".*Load configuration from FILE\n.*Language for the greeting.*"
+  "output": ".*Load configuration from FILE\n.*\n.*Language for the greeting.*"
 } -->
 ```go
 package main
diff --git a/docs/v3/index.md b/docs/v3/index.md
new file mode 100644
index 0000000000..9632522e67
--- /dev/null
+++ b/docs/v3/index.md
@@ -0,0 +1 @@
+# v3 guide
diff --git a/flag-spec.yaml b/flag-spec.yaml
index 76480ba47c..a38b933379 100644
--- a/flag-spec.yaml
+++ b/flag-spec.yaml
@@ -3,6 +3,7 @@
 # `Spec` type that maps to this file structure.
 flag_types:
   bool:
+    no_default_text: true
     struct_fields:
       - name: Count
         type: int
diff --git a/flag.go b/flag.go
index b66a75da5e..a776c7497a 100644
--- a/flag.go
+++ b/flag.go
@@ -97,9 +97,14 @@ type ActionableFlag interface {
 // this interface be implemented.
 type Flag interface {
 	fmt.Stringer
+
 	// Apply Flag settings to the given flag set
 	Apply(*flag.FlagSet) error
+
+	// All possible names for this flag
 	Names() []string
+
+	// Whether the flag has been set or not
 	IsSet() bool
 }
 
@@ -108,6 +113,7 @@ type Flag interface {
 type RequiredFlag interface {
 	Flag
 
+	// whether the flag is a required flag or not
 	IsRequired() bool
 }
 
@@ -140,6 +146,12 @@ type DocGenerationSliceFlag interface {
 	IsSliceFlag() bool
 }
 
+// Countable is an interface to enable detection of flag values which support
+// repetitive flags
+type Countable interface {
+	Count() int
+}
+
 // VisibleFlag is an interface that allows to check if a flag is visible
 type VisibleFlag interface {
 	Flag
@@ -153,15 +165,10 @@ type VisibleFlag interface {
 type CategorizableFlag interface {
 	VisibleFlag
 
+	// Returns the category of the flag
 	GetCategory() string
 }
 
-// Countable is an interface to enable detection of flag values which support
-// repetitive flags
-type Countable interface {
-	Count() int
-}
-
 func flagSet(name string, flags []Flag) (*flag.FlagSet, error) {
 	set := flag.NewFlagSet(name, flag.ContinueOnError)
 
diff --git a/flag_bool.go b/flag_bool.go
index f64d1cd92c..94de7351a1 100644
--- a/flag_bool.go
+++ b/flag_bool.go
@@ -58,21 +58,6 @@ func (b *boolValue) Count() int {
 	return 0
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *BoolFlag) TakesValue() bool {
-	return false
-}
-
-// GetUsage returns the usage string for the flag
-func (f *BoolFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *BoolFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *BoolFlag) GetValue() string {
@@ -87,11 +72,6 @@ func (f *BoolFlag) GetDefaultText() string {
 	return fmt.Sprintf("%v", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *BoolFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // RunAction executes flag action if set
 func (f *BoolFlag) RunAction(c *Context) error {
 	if f.Action != nil {
diff --git a/flag_duration.go b/flag_duration.go
index eac4cb8332..ad2b83d1c8 100644
--- a/flag_duration.go
+++ b/flag_duration.go
@@ -6,21 +6,6 @@ import (
 	"time"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *DurationFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *DurationFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *DurationFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *DurationFlag) GetValue() string {
@@ -35,11 +20,6 @@ func (f *DurationFlag) GetDefaultText() string {
 	return f.defaultValue.String()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *DurationFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *DurationFlag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
diff --git a/flag_float64.go b/flag_float64.go
index bce26c1958..d522ac0436 100644
--- a/flag_float64.go
+++ b/flag_float64.go
@@ -6,21 +6,6 @@ import (
 	"strconv"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *Float64Flag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *Float64Flag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *Float64Flag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *Float64Flag) GetValue() string {
@@ -35,11 +20,6 @@ func (f *Float64Flag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *Float64Flag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *Float64Flag) Apply(set *flag.FlagSet) error {
 	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
diff --git a/flag_float64_slice.go b/flag_float64_slice.go
index 413aa50e9f..d060432f06 100644
--- a/flag_float64_slice.go
+++ b/flag_float64_slice.go
@@ -86,21 +86,6 @@ func (f *Float64SliceFlag) String() string {
 	return FlagStringer(f)
 }
 
-// TakesValue returns true if the flag takes a value, otherwise false
-func (f *Float64SliceFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *Float64SliceFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *Float64SliceFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *Float64SliceFlag) GetValue() string {
@@ -121,11 +106,6 @@ func (f *Float64SliceFlag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *Float64SliceFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // IsSliceFlag implements DocGenerationSliceFlag.
 func (f *Float64SliceFlag) IsSliceFlag() bool {
 	return true
diff --git a/flag_generic.go b/flag_generic.go
index 4f9ac0a7ff..0797e5a22a 100644
--- a/flag_generic.go
+++ b/flag_generic.go
@@ -24,21 +24,6 @@ func (s *stringGeneric) String() string {
 	return s.value
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *GenericFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *GenericFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *GenericFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *GenericFlag) GetValue() string {
@@ -59,11 +44,6 @@ func (f *GenericFlag) GetDefaultText() string {
 	return ""
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *GenericFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply takes the flagset and calls Set on the generic flag with the value
 // provided by the user for parsing by the flag
 func (f *GenericFlag) Apply(set *flag.FlagSet) error {
diff --git a/flag_int.go b/flag_int.go
index d681270a23..c76e101de1 100644
--- a/flag_int.go
+++ b/flag_int.go
@@ -6,21 +6,6 @@ import (
 	"strconv"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *IntFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *IntFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *IntFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *IntFlag) GetValue() string {
@@ -35,11 +20,6 @@ func (f *IntFlag) GetDefaultText() string {
 	return fmt.Sprintf("%d", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *IntFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *IntFlag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
diff --git a/flag_int64.go b/flag_int64.go
index 6f8c8d27d8..93eae07524 100644
--- a/flag_int64.go
+++ b/flag_int64.go
@@ -6,21 +6,6 @@ import (
 	"strconv"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *Int64Flag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *Int64Flag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *Int64Flag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *Int64Flag) GetValue() string {
@@ -35,11 +20,6 @@ func (f *Int64Flag) GetDefaultText() string {
 	return fmt.Sprintf("%d", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *Int64Flag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *Int64Flag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
diff --git a/flag_int64_slice.go b/flag_int64_slice.go
index c45c43d3ab..2db2ceab24 100644
--- a/flag_int64_slice.go
+++ b/flag_int64_slice.go
@@ -87,21 +87,6 @@ func (f *Int64SliceFlag) String() string {
 	return FlagStringer(f)
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *Int64SliceFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *Int64SliceFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *Int64SliceFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *Int64SliceFlag) GetValue() string {
@@ -122,11 +107,6 @@ func (f *Int64SliceFlag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *Int64SliceFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // IsSliceFlag implements DocGenerationSliceFlag.
 func (f *Int64SliceFlag) IsSliceFlag() bool {
 	return true
diff --git a/flag_int_slice.go b/flag_int_slice.go
index d4006e594c..a2c9f21301 100644
--- a/flag_int_slice.go
+++ b/flag_int_slice.go
@@ -98,21 +98,6 @@ func (f *IntSliceFlag) String() string {
 	return FlagStringer(f)
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *IntSliceFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *IntSliceFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *IntSliceFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *IntSliceFlag) GetValue() string {
@@ -133,11 +118,6 @@ func (f *IntSliceFlag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *IntSliceFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // IsSliceFlag implements DocGenerationSliceFlag.
 func (f *IntSliceFlag) IsSliceFlag() bool {
 	return true
diff --git a/flag_path.go b/flag_path.go
index 6434d3224f..8e75953e2e 100644
--- a/flag_path.go
+++ b/flag_path.go
@@ -7,21 +7,6 @@ import (
 
 type Path = string
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *PathFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *PathFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *PathFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *PathFlag) GetValue() string {
@@ -39,11 +24,6 @@ func (f *PathFlag) GetDefaultText() string {
 	return fmt.Sprintf("%q", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *PathFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *PathFlag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
diff --git a/flag_string.go b/flag_string.go
index 3050086e87..b7b78c63ec 100644
--- a/flag_string.go
+++ b/flag_string.go
@@ -5,21 +5,6 @@ import (
 	"fmt"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *StringFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *StringFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *StringFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *StringFlag) GetValue() string {
@@ -37,11 +22,6 @@ func (f *StringFlag) GetDefaultText() string {
 	return fmt.Sprintf("%q", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *StringFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *StringFlag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
diff --git a/flag_string_slice.go b/flag_string_slice.go
index baca2a2fb9..f53c0e6098 100644
--- a/flag_string_slice.go
+++ b/flag_string_slice.go
@@ -77,21 +77,6 @@ func (f *StringSliceFlag) String() string {
 	return FlagStringer(f)
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *StringSliceFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *StringSliceFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *StringSliceFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *StringSliceFlag) GetValue() string {
@@ -114,11 +99,6 @@ func (f *StringSliceFlag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *StringSliceFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // IsSliceFlag implements DocGenerationSliceFlag.
 func (f *StringSliceFlag) IsSliceFlag() bool {
 	return true
diff --git a/flag_test.go b/flag_test.go
index 3a2bc2b67e..e1a040d965 100644
--- a/flag_test.go
+++ b/flag_test.go
@@ -224,7 +224,7 @@ func TestFlagsFromEnv(t *testing.T) {
 
 		f, ok := test.flag.(DocGenerationFlag)
 		if !ok {
-			t.Errorf("flag %v needs to implement DocGenerationFlag to retrieve env vars", test.flag)
+			t.Errorf("flag %[1]q (%[1]T) needs to implement DocGenerationFlag to retrieve env vars", test.flag)
 		}
 		envVarSlice := f.GetEnvVars()
 		_ = os.Setenv(envVarSlice[0], test.input)
diff --git a/flag_timestamp.go b/flag_timestamp.go
index fa0671fe4e..cc90d42f00 100644
--- a/flag_timestamp.go
+++ b/flag_timestamp.go
@@ -91,21 +91,6 @@ func (t *Timestamp) clone() *Timestamp {
 	return tc
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *TimestampFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *TimestampFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *TimestampFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *TimestampFlag) GetValue() string {
@@ -127,11 +112,6 @@ func (f *TimestampFlag) GetDefaultText() string {
 	return ""
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *TimestampFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *TimestampFlag) Apply(set *flag.FlagSet) error {
 	if f.Layout == "" {
diff --git a/flag_uint.go b/flag_uint.go
index d11aa0a891..90a5318607 100644
--- a/flag_uint.go
+++ b/flag_uint.go
@@ -6,21 +6,6 @@ import (
 	"strconv"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *UintFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *UintFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *UintFlag) GetCategory() string {
-	return f.Category
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *UintFlag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
@@ -49,15 +34,6 @@ func (f *UintFlag) Apply(set *flag.FlagSet) error {
 	return nil
 }
 
-// RunAction executes flag action if set
-func (f *UintFlag) RunAction(c *Context) error {
-	if f.Action != nil {
-		return f.Action(c, c.Uint(f.Name))
-	}
-
-	return nil
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *UintFlag) GetValue() string {
@@ -72,16 +48,20 @@ func (f *UintFlag) GetDefaultText() string {
 	return fmt.Sprintf("%d", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *UintFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Get returns the flag’s value in the given Context.
 func (f *UintFlag) Get(ctx *Context) uint {
 	return ctx.Uint(f.Name)
 }
 
+// RunAction executes flag action if set
+func (f *UintFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint(f.Name))
+	}
+
+	return nil
+}
+
 // Uint looks up the value of a local UintFlag, returns
 // 0 if not found
 func (cCtx *Context) Uint(name string) uint {
diff --git a/flag_uint64.go b/flag_uint64.go
index ea73100a97..c66367b0af 100644
--- a/flag_uint64.go
+++ b/flag_uint64.go
@@ -6,21 +6,6 @@ import (
 	"strconv"
 )
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *Uint64Flag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *Uint64Flag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *Uint64Flag) GetCategory() string {
-	return f.Category
-}
-
 // Apply populates the flag given the flag set and environment
 func (f *Uint64Flag) Apply(set *flag.FlagSet) error {
 	// set default value so that environment wont be able to overwrite it
@@ -49,15 +34,6 @@ func (f *Uint64Flag) Apply(set *flag.FlagSet) error {
 	return nil
 }
 
-// RunAction executes flag action if set
-func (f *Uint64Flag) RunAction(c *Context) error {
-	if f.Action != nil {
-		return f.Action(c, c.Uint64(f.Name))
-	}
-
-	return nil
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *Uint64Flag) GetValue() string {
@@ -72,16 +48,20 @@ func (f *Uint64Flag) GetDefaultText() string {
 	return fmt.Sprintf("%d", f.defaultValue)
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *Uint64Flag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // Get returns the flag’s value in the given Context.
 func (f *Uint64Flag) Get(ctx *Context) uint64 {
 	return ctx.Uint64(f.Name)
 }
 
+// RunAction executes flag action if set
+func (f *Uint64Flag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint64(f.Name))
+	}
+
+	return nil
+}
+
 // Uint64 looks up the value of a local Uint64Flag, returns
 // 0 if not found
 func (cCtx *Context) Uint64(name string) uint64 {
diff --git a/flag_uint64_slice.go b/flag_uint64_slice.go
index 61bb30b551..ae251ac793 100644
--- a/flag_uint64_slice.go
+++ b/flag_uint64_slice.go
@@ -91,21 +91,6 @@ func (f *Uint64SliceFlag) String() string {
 	return FlagStringer(f)
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *Uint64SliceFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *Uint64SliceFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *Uint64SliceFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *Uint64SliceFlag) GetValue() string {
@@ -126,11 +111,6 @@ func (f *Uint64SliceFlag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *Uint64SliceFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // IsSliceFlag implements DocGenerationSliceFlag.
 func (f *Uint64SliceFlag) IsSliceFlag() bool {
 	return true
@@ -180,6 +160,15 @@ func (f *Uint64SliceFlag) Get(ctx *Context) []uint64 {
 	return ctx.Uint64Slice(f.Name)
 }
 
+// RunAction executes flag action if set
+func (f *Uint64SliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint64Slice(f.Name))
+	}
+
+	return nil
+}
+
 // Uint64Slice looks up the value of a local Uint64SliceFlag, returns
 // nil if not found
 func (cCtx *Context) Uint64Slice(name string) []uint64 {
diff --git a/flag_uint_slice.go b/flag_uint_slice.go
index 363aa657f3..92848f22fc 100644
--- a/flag_uint_slice.go
+++ b/flag_uint_slice.go
@@ -102,21 +102,6 @@ func (f *UintSliceFlag) String() string {
 	return FlagStringer(f)
 }
 
-// TakesValue returns true of the flag takes a value, otherwise false
-func (f *UintSliceFlag) TakesValue() bool {
-	return true
-}
-
-// GetUsage returns the usage string for the flag
-func (f *UintSliceFlag) GetUsage() string {
-	return f.Usage
-}
-
-// GetCategory returns the category for the flag
-func (f *UintSliceFlag) GetCategory() string {
-	return f.Category
-}
-
 // GetValue returns the flags value as string representation and an empty
 // string if the flag takes no value at all.
 func (f *UintSliceFlag) GetValue() string {
@@ -137,11 +122,6 @@ func (f *UintSliceFlag) GetDefaultText() string {
 	return f.GetValue()
 }
 
-// GetEnvVars returns the env vars for this flag
-func (f *UintSliceFlag) GetEnvVars() []string {
-	return f.EnvVars
-}
-
 // IsSliceFlag implements DocGenerationSliceFlag.
 func (f *UintSliceFlag) IsSliceFlag() bool {
 	return true
@@ -191,6 +171,15 @@ func (f *UintSliceFlag) Get(ctx *Context) []uint {
 	return ctx.UintSlice(f.Name)
 }
 
+// RunAction executes flag action if set
+func (f *UintSliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.UintSlice(f.Name))
+	}
+
+	return nil
+}
+
 // UintSlice looks up the value of a local UintSliceFlag, returns
 // nil if not found
 func (cCtx *Context) UintSlice(name string) []uint {
diff --git a/go.mod b/go.mod
index 09ef1477d8..d2774262a0 100644
--- a/go.mod
+++ b/go.mod
@@ -1,4 +1,4 @@
-module github.com/urfave/cli/v2
+module github.com/urfave/cli/v3
 
 go 1.18
 
diff --git a/godoc-current.txt b/godoc-current.txt
index b8dbf6ad0a..9abda4be5f 100644
--- a/godoc-current.txt
+++ b/godoc-current.txt
@@ -1,4 +1,4 @@
-package cli // import "github.com/urfave/cli/v2"
+package cli // import "github.com/urfave/cli/v3"
 
 Package cli provides a minimal framework for creating and organizing command
 line Go applications. cli is designed to be easy to understand and write,
@@ -465,7 +465,7 @@ func (f *BoolFlag) Get(ctx *Context) bool
     Get returns the flag’s value in the given Context.
 
 func (f *BoolFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *BoolFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -499,11 +499,12 @@ func (f *BoolFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *BoolFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type CategorizableFlag interface {
 	VisibleFlag
 
+	// Returns the category of the flag
 	GetCategory() string
 }
     CategorizableFlag is an interface that allows us to potentially use a flag
@@ -794,7 +795,7 @@ func (f *DurationFlag) Get(ctx *Context) time.Duration
     Get returns the flag’s value in the given Context.
 
 func (f *DurationFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *DurationFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -828,7 +829,7 @@ func (f *DurationFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *DurationFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type ErrorFormatter interface {
 	Format(s fmt.State, verb rune)
@@ -863,9 +864,14 @@ type ExitErrHandlerFunc func(cCtx *Context, err error)
 
 type Flag interface {
 	fmt.Stringer
+
 	// Apply Flag settings to the given flag set
 	Apply(*flag.FlagSet) error
+
+	// All possible names for this flag
 	Names() []string
+
+	// Whether the flag has been set or not
 	IsSet() bool
 }
     Flag is a common interface related to parsing flags in cli. For more
@@ -973,7 +979,7 @@ func (f *Float64Flag) Get(ctx *Context) float64
     Get returns the flag’s value in the given Context.
 
 func (f *Float64Flag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Float64Flag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1007,7 +1013,7 @@ func (f *Float64Flag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Float64Flag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Float64Slice struct {
 	// Has unexported fields.
@@ -1062,7 +1068,7 @@ func (f *Float64SliceFlag) Get(ctx *Context) []float64
     Get returns the flag’s value in the given Context.
 
 func (f *Float64SliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Float64SliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1146,7 +1152,7 @@ func (f *GenericFlag) Get(ctx *Context) interface{}
     Get returns the flag’s value in the given Context.
 
 func (f *GenericFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *GenericFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1180,7 +1186,7 @@ func (f *GenericFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *GenericFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Int64Flag struct {
 	Name string
@@ -1214,7 +1220,7 @@ func (f *Int64Flag) Get(ctx *Context) int64
     Get returns the flag’s value in the given Context.
 
 func (f *Int64Flag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Int64Flag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1248,7 +1254,7 @@ func (f *Int64Flag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Int64Flag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Int64Slice struct {
 	// Has unexported fields.
@@ -1303,7 +1309,7 @@ func (f *Int64SliceFlag) Get(ctx *Context) []int64
     Get returns the flag’s value in the given Context.
 
 func (f *Int64SliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Int64SliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1346,7 +1352,7 @@ func (f *Int64SliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Int64SliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type IntFlag struct {
 	Name string
@@ -1380,7 +1386,7 @@ func (f *IntFlag) Get(ctx *Context) int
     Get returns the flag’s value in the given Context.
 
 func (f *IntFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *IntFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1414,7 +1420,7 @@ func (f *IntFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *IntFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type IntSlice struct {
 	// Has unexported fields.
@@ -1473,7 +1479,7 @@ func (f *IntSliceFlag) Get(ctx *Context) []int
     Get returns the flag’s value in the given Context.
 
 func (f *IntSliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *IntSliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1516,7 +1522,7 @@ func (f *IntSliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *IntSliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type InvalidFlagAccessFunc func(*Context, string)
     InvalidFlagAccessFunc is executed when an invalid flag is accessed from the
@@ -1584,7 +1590,7 @@ func (f *PathFlag) Get(ctx *Context) string
     Get returns the flag’s value in the given Context.
 
 func (f *PathFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *PathFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1618,11 +1624,12 @@ func (f *PathFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *PathFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type RequiredFlag interface {
 	Flag
 
+	// whether the flag is a required flag or not
 	IsRequired() bool
 }
     RequiredFlag is an interface that allows us to mark flags as required
@@ -1727,7 +1734,7 @@ func (f *StringFlag) Get(ctx *Context) string
     Get returns the flag’s value in the given Context.
 
 func (f *StringFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *StringFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1761,7 +1768,7 @@ func (f *StringFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *StringFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type StringSlice struct {
 	// Has unexported fields.
@@ -1818,7 +1825,7 @@ func (f *StringSliceFlag) Get(ctx *Context) []string
     Get returns the flag’s value in the given Context.
 
 func (f *StringSliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *StringSliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1861,7 +1868,7 @@ func (f *StringSliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *StringSliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type SuggestCommandFunc func(commands []*Command, provided string) string
 
@@ -1930,7 +1937,7 @@ func (f *TimestampFlag) Get(ctx *Context) *time.Time
     Get returns the flag’s value in the given Context.
 
 func (f *TimestampFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *TimestampFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1964,7 +1971,7 @@ func (f *TimestampFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *TimestampFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Uint64Flag struct {
 	Name string
@@ -1998,7 +2005,7 @@ func (f *Uint64Flag) Get(ctx *Context) uint64
     Get returns the flag’s value in the given Context.
 
 func (f *Uint64Flag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Uint64Flag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -2032,7 +2039,7 @@ func (f *Uint64Flag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Uint64Flag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Uint64Slice struct {
 	// Has unexported fields.
@@ -2087,7 +2094,7 @@ func (f *Uint64SliceFlag) Get(ctx *Context) []uint64
     Get returns the flag’s value in the given Context.
 
 func (f *Uint64SliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Uint64SliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -2117,11 +2124,14 @@ func (f *Uint64SliceFlag) IsVisible() bool
 func (f *Uint64SliceFlag) Names() []string
     Names returns the names of the flag
 
+func (f *Uint64SliceFlag) RunAction(c *Context) error
+    RunAction executes flag action if set
+
 func (f *Uint64SliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Uint64SliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type UintFlag struct {
 	Name string
@@ -2155,7 +2165,7 @@ func (f *UintFlag) Get(ctx *Context) uint
     Get returns the flag’s value in the given Context.
 
 func (f *UintFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *UintFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -2189,7 +2199,7 @@ func (f *UintFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *UintFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type UintSlice struct {
 	// Has unexported fields.
@@ -2248,7 +2258,7 @@ func (f *UintSliceFlag) Get(ctx *Context) []uint
     Get returns the flag’s value in the given Context.
 
 func (f *UintSliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *UintSliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -2278,11 +2288,14 @@ func (f *UintSliceFlag) IsVisible() bool
 func (f *UintSliceFlag) Names() []string
     Names returns the names of the flag
 
+func (f *UintSliceFlag) RunAction(c *Context) error
+    RunAction executes flag action if set
+
 func (f *UintSliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *UintSliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type VisibleFlag interface {
 	Flag
@@ -2300,7 +2313,7 @@ type VisibleFlagCategory interface {
 }
     VisibleFlagCategory is a category containing flags.
 
-package altsrc // import "github.com/urfave/cli/v2/altsrc"
+package altsrc // import "github.com/urfave/cli/v3/altsrc"
 
 
 FUNCTIONS
diff --git a/internal/build/build.go b/internal/build/build.go
index 04d0668814..dcef50b143 100644
--- a/internal/build/build.go
+++ b/internal/build/build.go
@@ -18,7 +18,7 @@ import (
 	"runtime"
 	"strings"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 const (
@@ -240,10 +240,10 @@ func TestActionFunc(c *cli.Context) error {
 	tags := c.String("tags")
 
 	for _, pkg := range c.StringSlice("packages") {
-		packageName := "github.com/urfave/cli/v2"
+		packageName := "github.com/urfave/cli/v3"
 
 		if pkg != "cli" {
-			packageName = fmt.Sprintf("github.com/urfave/cli/v2/%s", pkg)
+			packageName = fmt.Sprintf("github.com/urfave/cli/v3/%s", pkg)
 		}
 
 		args := []string{"test"}
diff --git a/internal/example-cli/example-cli.go b/internal/example-cli/example-cli.go
index 06cbbfffcb..3e6e4dae4d 100644
--- a/internal/example-cli/example-cli.go
+++ b/internal/example-cli/example-cli.go
@@ -3,7 +3,7 @@
 package main
 
 import (
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 func main() {
diff --git a/sliceflag.go b/sliceflag.go
index 7dea3576a3..b2ca59041f 100644
--- a/sliceflag.go
+++ b/sliceflag.go
@@ -1,6 +1,3 @@
-//go:build go1.18
-// +build go1.18
-
 package cli
 
 import (
diff --git a/sliceflag_pre18.go b/sliceflag_pre18.go
deleted file mode 100644
index 1173ae7402..0000000000
--- a/sliceflag_pre18.go
+++ /dev/null
@@ -1,10 +0,0 @@
-//go:build !go1.18
-// +build !go1.18
-
-package cli
-
-import (
-	"flag"
-)
-
-func unwrapFlagValue(v flag.Value) flag.Value { return v }
diff --git a/sliceflag_test.go b/sliceflag_test.go
index 83374172c8..78dc5d509d 100644
--- a/sliceflag_test.go
+++ b/sliceflag_test.go
@@ -1,6 +1,3 @@
-//go:build go1.18
-// +build go1.18
-
 package cli
 
 import (
diff --git a/testdata/godoc-v2.x.txt b/testdata/godoc-v2.x.txt
index b8dbf6ad0a..ec5d8632c0 100644
--- a/testdata/godoc-v2.x.txt
+++ b/testdata/godoc-v2.x.txt
@@ -1,4 +1,4 @@
-package cli // import "github.com/urfave/cli/v2"
+package cli // import "github.com/urfave/cli/v3"
 
 Package cli provides a minimal framework for creating and organizing command
 line Go applications. cli is designed to be easy to understand and write,
@@ -73,8 +73,7 @@ DESCRIPTION:
 
 OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
 
-OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}
-`
+OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}`
     CommandHelpTemplate is the text template for the command help topic. cli.go
     uses text/template to render templates. You can render custom help text by
     setting this variable.
@@ -145,8 +144,7 @@ COMMANDS:{{template "visibleCommandTemplate" .}}{{end}}{{if .VisibleFlagCategori
 
 OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
 
-OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}
-`
+OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}`
     SubcommandHelpTemplate is the text template for the subcommand help topic.
     cli.go uses text/template to render templates. You can render custom help
     text by setting this variable.
@@ -465,7 +463,7 @@ func (f *BoolFlag) Get(ctx *Context) bool
     Get returns the flag’s value in the given Context.
 
 func (f *BoolFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *BoolFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -499,11 +497,12 @@ func (f *BoolFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *BoolFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type CategorizableFlag interface {
 	VisibleFlag
 
+	// Returns the category of the flag
 	GetCategory() string
 }
     CategorizableFlag is an interface that allows us to potentially use a flag
@@ -794,7 +793,7 @@ func (f *DurationFlag) Get(ctx *Context) time.Duration
     Get returns the flag’s value in the given Context.
 
 func (f *DurationFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *DurationFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -828,7 +827,7 @@ func (f *DurationFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *DurationFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type ErrorFormatter interface {
 	Format(s fmt.State, verb rune)
@@ -863,9 +862,14 @@ type ExitErrHandlerFunc func(cCtx *Context, err error)
 
 type Flag interface {
 	fmt.Stringer
+
 	// Apply Flag settings to the given flag set
 	Apply(*flag.FlagSet) error
+
+	// All possible names for this flag
 	Names() []string
+
+	// Whether the flag has been set or not
 	IsSet() bool
 }
     Flag is a common interface related to parsing flags in cli. For more
@@ -973,7 +977,7 @@ func (f *Float64Flag) Get(ctx *Context) float64
     Get returns the flag’s value in the given Context.
 
 func (f *Float64Flag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Float64Flag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1007,7 +1011,7 @@ func (f *Float64Flag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Float64Flag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Float64Slice struct {
 	// Has unexported fields.
@@ -1062,7 +1066,7 @@ func (f *Float64SliceFlag) Get(ctx *Context) []float64
     Get returns the flag’s value in the given Context.
 
 func (f *Float64SliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Float64SliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1146,7 +1150,7 @@ func (f *GenericFlag) Get(ctx *Context) interface{}
     Get returns the flag’s value in the given Context.
 
 func (f *GenericFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *GenericFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1180,7 +1184,7 @@ func (f *GenericFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *GenericFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Int64Flag struct {
 	Name string
@@ -1214,7 +1218,7 @@ func (f *Int64Flag) Get(ctx *Context) int64
     Get returns the flag’s value in the given Context.
 
 func (f *Int64Flag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Int64Flag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1248,7 +1252,7 @@ func (f *Int64Flag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Int64Flag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Int64Slice struct {
 	// Has unexported fields.
@@ -1303,7 +1307,7 @@ func (f *Int64SliceFlag) Get(ctx *Context) []int64
     Get returns the flag’s value in the given Context.
 
 func (f *Int64SliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Int64SliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1346,7 +1350,7 @@ func (f *Int64SliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Int64SliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type IntFlag struct {
 	Name string
@@ -1380,7 +1384,7 @@ func (f *IntFlag) Get(ctx *Context) int
     Get returns the flag’s value in the given Context.
 
 func (f *IntFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *IntFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1414,7 +1418,7 @@ func (f *IntFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *IntFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type IntSlice struct {
 	// Has unexported fields.
@@ -1473,7 +1477,7 @@ func (f *IntSliceFlag) Get(ctx *Context) []int
     Get returns the flag’s value in the given Context.
 
 func (f *IntSliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *IntSliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1516,7 +1520,7 @@ func (f *IntSliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *IntSliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type InvalidFlagAccessFunc func(*Context, string)
     InvalidFlagAccessFunc is executed when an invalid flag is accessed from the
@@ -1584,7 +1588,7 @@ func (f *PathFlag) Get(ctx *Context) string
     Get returns the flag’s value in the given Context.
 
 func (f *PathFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *PathFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1618,11 +1622,12 @@ func (f *PathFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *PathFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type RequiredFlag interface {
 	Flag
 
+	// whether the flag is a required flag or not
 	IsRequired() bool
 }
     RequiredFlag is an interface that allows us to mark flags as required
@@ -1727,7 +1732,7 @@ func (f *StringFlag) Get(ctx *Context) string
     Get returns the flag’s value in the given Context.
 
 func (f *StringFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *StringFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1761,7 +1766,7 @@ func (f *StringFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *StringFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type StringSlice struct {
 	// Has unexported fields.
@@ -1818,7 +1823,7 @@ func (f *StringSliceFlag) Get(ctx *Context) []string
     Get returns the flag’s value in the given Context.
 
 func (f *StringSliceFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *StringSliceFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1861,7 +1866,7 @@ func (f *StringSliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *StringSliceFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type SuggestCommandFunc func(commands []*Command, provided string) string
 
@@ -1930,7 +1935,7 @@ func (f *TimestampFlag) Get(ctx *Context) *time.Time
     Get returns the flag’s value in the given Context.
 
 func (f *TimestampFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *TimestampFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -1964,7 +1969,7 @@ func (f *TimestampFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *TimestampFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Uint64Flag struct {
 	Name string
@@ -1998,7 +2003,7 @@ func (f *Uint64Flag) Get(ctx *Context) uint64
     Get returns the flag’s value in the given Context.
 
 func (f *Uint64Flag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *Uint64Flag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -2032,7 +2037,7 @@ func (f *Uint64Flag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *Uint64Flag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type Uint64Slice struct {
 	// Has unexported fields.
@@ -2117,6 +2122,9 @@ func (f *Uint64SliceFlag) IsVisible() bool
 func (f *Uint64SliceFlag) Names() []string
     Names returns the names of the flag
 
+func (f *Uint64SliceFlag) RunAction(c *Context) error
+    RunAction executes flag action if set
+
 func (f *Uint64SliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
@@ -2155,7 +2163,7 @@ func (f *UintFlag) Get(ctx *Context) uint
     Get returns the flag’s value in the given Context.
 
 func (f *UintFlag) GetCategory() string
-    GetCategory returns the category for the flag
+    GetCategory returns the category of the flag
 
 func (f *UintFlag) GetDefaultText() string
     GetDefaultText returns the default text for this flag
@@ -2189,7 +2197,7 @@ func (f *UintFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
 func (f *UintFlag) TakesValue() bool
-    TakesValue returns true of the flag takes a value, otherwise false
+    TakesValue returns true if the flag takes a value, otherwise false
 
 type UintSlice struct {
 	// Has unexported fields.
@@ -2278,6 +2286,9 @@ func (f *UintSliceFlag) IsVisible() bool
 func (f *UintSliceFlag) Names() []string
     Names returns the names of the flag
 
+func (f *UintSliceFlag) RunAction(c *Context) error
+    RunAction executes flag action if set
+
 func (f *UintSliceFlag) String() string
     String returns a readable representation of this value (for usage defaults)
 
@@ -2300,7 +2311,7 @@ type VisibleFlagCategory interface {
 }
     VisibleFlagCategory is a category containing flags.
 
-package altsrc // import "github.com/urfave/cli/v2/altsrc"
+package altsrc // import "github.com/urfave/cli/v3/altsrc"
 
 
 FUNCTIONS
diff --git a/zz_generated.flags.go b/zz_generated.flags.go
index 7d0a267f78..e8497ee45b 100644
--- a/zz_generated.flags.go
+++ b/zz_generated.flags.go
@@ -48,6 +48,26 @@ func (f *Float64SliceFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *Float64SliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Float64SliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Float64SliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Float64SliceFlag) TakesValue() bool {
+	return "Float64SliceFlag" != "BoolFlag"
+}
+
 // GenericFlag is a flag with type Generic
 type GenericFlag struct {
 	Name string
@@ -99,6 +119,26 @@ func (f *GenericFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *GenericFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *GenericFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *GenericFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *GenericFlag) TakesValue() bool {
+	return "GenericFlag" != "BoolFlag"
+}
+
 // Int64SliceFlag is a flag with type *Int64Slice
 type Int64SliceFlag struct {
 	Name string
@@ -143,6 +183,26 @@ func (f *Int64SliceFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *Int64SliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Int64SliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Int64SliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Int64SliceFlag) TakesValue() bool {
+	return "Int64SliceFlag" != "BoolFlag"
+}
+
 // IntSliceFlag is a flag with type *IntSlice
 type IntSliceFlag struct {
 	Name string
@@ -187,6 +247,26 @@ func (f *IntSliceFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *IntSliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *IntSliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *IntSliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *IntSliceFlag) TakesValue() bool {
+	return "IntSliceFlag" != "BoolFlag"
+}
+
 // PathFlag is a flag with type Path
 type PathFlag struct {
 	Name string
@@ -238,6 +318,26 @@ func (f *PathFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *PathFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *PathFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *PathFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *PathFlag) TakesValue() bool {
+	return "PathFlag" != "BoolFlag"
+}
+
 // StringSliceFlag is a flag with type *StringSlice
 type StringSliceFlag struct {
 	Name string
@@ -284,6 +384,26 @@ func (f *StringSliceFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *StringSliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *StringSliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *StringSliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *StringSliceFlag) TakesValue() bool {
+	return "StringSliceFlag" != "BoolFlag"
+}
+
 // TimestampFlag is a flag with type *Timestamp
 type TimestampFlag struct {
 	Name string
@@ -337,6 +457,26 @@ func (f *TimestampFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *TimestampFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *TimestampFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *TimestampFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *TimestampFlag) TakesValue() bool {
+	return "TimestampFlag" != "BoolFlag"
+}
+
 // Uint64SliceFlag is a flag with type *Uint64Slice
 type Uint64SliceFlag struct {
 	Name string
@@ -381,6 +521,26 @@ func (f *Uint64SliceFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *Uint64SliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Uint64SliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Uint64SliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Uint64SliceFlag) TakesValue() bool {
+	return "Uint64SliceFlag" != "BoolFlag"
+}
+
 // UintSliceFlag is a flag with type *UintSlice
 type UintSliceFlag struct {
 	Name string
@@ -425,6 +585,26 @@ func (f *UintSliceFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *UintSliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *UintSliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *UintSliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *UintSliceFlag) TakesValue() bool {
+	return "UintSliceFlag" != "BoolFlag"
+}
+
 // BoolFlag is a flag with type bool
 type BoolFlag struct {
 	Name string
@@ -476,6 +656,26 @@ func (f *BoolFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *BoolFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *BoolFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *BoolFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *BoolFlag) TakesValue() bool {
+	return "BoolFlag" != "BoolFlag"
+}
+
 // Float64Flag is a flag with type float64
 type Float64Flag struct {
 	Name string
@@ -525,6 +725,26 @@ func (f *Float64Flag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *Float64Flag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Float64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Float64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Float64Flag) TakesValue() bool {
+	return "Float64Flag" != "BoolFlag"
+}
+
 // IntFlag is a flag with type int
 type IntFlag struct {
 	Name string
@@ -576,6 +796,26 @@ func (f *IntFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *IntFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *IntFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *IntFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *IntFlag) TakesValue() bool {
+	return "IntFlag" != "BoolFlag"
+}
+
 // Int64Flag is a flag with type int64
 type Int64Flag struct {
 	Name string
@@ -627,6 +867,26 @@ func (f *Int64Flag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *Int64Flag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Int64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Int64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Int64Flag) TakesValue() bool {
+	return "Int64Flag" != "BoolFlag"
+}
+
 // StringFlag is a flag with type string
 type StringFlag struct {
 	Name string
@@ -678,6 +938,26 @@ func (f *StringFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *StringFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *StringFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *StringFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *StringFlag) TakesValue() bool {
+	return "StringFlag" != "BoolFlag"
+}
+
 // DurationFlag is a flag with type time.Duration
 type DurationFlag struct {
 	Name string
@@ -727,6 +1007,26 @@ func (f *DurationFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *DurationFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *DurationFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *DurationFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *DurationFlag) TakesValue() bool {
+	return "DurationFlag" != "BoolFlag"
+}
+
 // UintFlag is a flag with type uint
 type UintFlag struct {
 	Name string
@@ -778,6 +1078,26 @@ func (f *UintFlag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *UintFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *UintFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *UintFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *UintFlag) TakesValue() bool {
+	return "UintFlag" != "BoolFlag"
+}
+
 // Uint64Flag is a flag with type uint64
 type Uint64Flag struct {
 	Name string
@@ -829,4 +1149,24 @@ func (f *Uint64Flag) IsVisible() bool {
 	return !f.Hidden
 }
 
+// GetCategory returns the category of the flag
+func (f *Uint64Flag) GetCategory() string {
+	return f.Category
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Uint64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Uint64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Uint64Flag) TakesValue() bool {
+	return "Uint64Flag" != "BoolFlag"
+}
+
 // vim:ro
diff --git a/zz_generated.flags_test.go b/zz_generated.flags_test.go
index 06ab7a6a7f..b7c68153c4 100644
--- a/zz_generated.flags_test.go
+++ b/zz_generated.flags_test.go
@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v3"
 )
 
 func TestFloat64SliceFlag_SatisfiesFlagInterface(t *testing.T) {
@@ -35,12 +35,6 @@ func TestGenericFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestGenericFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.GenericFlag{}
-
-	_ = f.String()
-}
-
 func TestGenericFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.GenericFlag{}
 
@@ -53,6 +47,12 @@ func TestGenericFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestGenericFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.GenericFlag{}
+
+	_ = f.String()
+}
+
 func TestInt64SliceFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.Int64SliceFlag{}
 
@@ -98,12 +98,6 @@ func TestPathFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestPathFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.PathFlag{}
-
-	_ = f.String()
-}
-
 func TestPathFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.PathFlag{}
 
@@ -116,6 +110,12 @@ func TestPathFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestPathFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.PathFlag{}
+
+	_ = f.String()
+}
+
 func TestStringSliceFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.StringSliceFlag{}
 
@@ -142,12 +142,6 @@ func TestTimestampFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestTimestampFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.TimestampFlag{}
-
-	_ = f.String()
-}
-
 func TestTimestampFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.TimestampFlag{}
 
@@ -160,6 +154,12 @@ func TestTimestampFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestTimestampFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.TimestampFlag{}
+
+	_ = f.String()
+}
+
 func TestUint64SliceFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.Uint64SliceFlag{}
 
@@ -205,12 +205,6 @@ func TestBoolFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestBoolFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.BoolFlag{}
-
-	_ = f.String()
-}
-
 func TestBoolFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.BoolFlag{}
 
@@ -223,6 +217,12 @@ func TestBoolFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestBoolFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.BoolFlag{}
+
+	_ = f.String()
+}
+
 func TestFloat64Flag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.Float64Flag{}
 
@@ -230,12 +230,6 @@ func TestFloat64Flag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestFloat64Flag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.Float64Flag{}
-
-	_ = f.String()
-}
-
 func TestFloat64Flag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.Float64Flag{}
 
@@ -248,6 +242,12 @@ func TestFloat64Flag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestFloat64Flag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.Float64Flag{}
+
+	_ = f.String()
+}
+
 func TestIntFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.IntFlag{}
 
@@ -255,12 +255,6 @@ func TestIntFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestIntFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.IntFlag{}
-
-	_ = f.String()
-}
-
 func TestIntFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.IntFlag{}
 
@@ -273,6 +267,12 @@ func TestIntFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestIntFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.IntFlag{}
+
+	_ = f.String()
+}
+
 func TestInt64Flag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.Int64Flag{}
 
@@ -280,12 +280,6 @@ func TestInt64Flag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestInt64Flag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.Int64Flag{}
-
-	_ = f.String()
-}
-
 func TestInt64Flag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.Int64Flag{}
 
@@ -298,6 +292,12 @@ func TestInt64Flag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestInt64Flag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.Int64Flag{}
+
+	_ = f.String()
+}
+
 func TestStringFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.StringFlag{}
 
@@ -305,12 +305,6 @@ func TestStringFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestStringFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.StringFlag{}
-
-	_ = f.String()
-}
-
 func TestStringFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.StringFlag{}
 
@@ -323,6 +317,12 @@ func TestStringFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestStringFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.StringFlag{}
+
+	_ = f.String()
+}
+
 func TestDurationFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.DurationFlag{}
 
@@ -330,12 +330,6 @@ func TestDurationFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestDurationFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.DurationFlag{}
-
-	_ = f.String()
-}
-
 func TestDurationFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.DurationFlag{}
 
@@ -348,6 +342,12 @@ func TestDurationFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestDurationFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.DurationFlag{}
+
+	_ = f.String()
+}
+
 func TestUintFlag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.UintFlag{}
 
@@ -355,12 +355,6 @@ func TestUintFlag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestUintFlag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.UintFlag{}
-
-	_ = f.String()
-}
-
 func TestUintFlag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.UintFlag{}
 
@@ -373,6 +367,12 @@ func TestUintFlag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestUintFlag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.UintFlag{}
+
+	_ = f.String()
+}
+
 func TestUint64Flag_SatisfiesFlagInterface(t *testing.T) {
 	var f cli.Flag = &cli.Uint64Flag{}
 
@@ -380,12 +380,6 @@ func TestUint64Flag_SatisfiesFlagInterface(t *testing.T) {
 	_ = f.Names()
 }
 
-func TestUint64Flag_SatisfiesFmtStringerInterface(t *testing.T) {
-	var f fmt.Stringer = &cli.Uint64Flag{}
-
-	_ = f.String()
-}
-
 func TestUint64Flag_SatisfiesRequiredFlagInterface(t *testing.T) {
 	var f cli.RequiredFlag = &cli.Uint64Flag{}
 
@@ -398,4 +392,10 @@ func TestUint64Flag_SatisfiesVisibleFlagInterface(t *testing.T) {
 	_ = f.IsVisible()
 }
 
+func TestUint64Flag_SatisfiesFmtStringerInterface(t *testing.T) {
+	var f fmt.Stringer = &cli.Uint64Flag{}
+
+	_ = f.String()
+}
+
 // vim:ro