diff --git a/README.md b/README.md
index ba4bd3b..a944e2d 100644
--- a/README.md
+++ b/README.md
@@ -60,12 +60,6 @@ Setup-go-faster supports these runner systems:
 | Windows   | X64         | windows/amd64 |
 | Windows   | ARM64       | windows/arm64 |
 
-### What\'s missing?
-
-Just the `stable` input. I don\'t understand what `stable` adds for
-actions/setup-go. If you only want stable builds you can set go-version
-accordingly. If there is good use case for `stable`, it can be added.
-
 ### A Note About Go 1.21.0
 
 **Use setup-go-faster@v1.9.1 or later** if you want to install Go 1.21.0.
@@ -83,6 +77,10 @@ dot-zero releases. They used to be styled like `go1.N`, but now they are
 The version of go to install. It can be an exact version or a semver constraint like '1.14.x' or '^1.14.4'.
 Do not add "go" or "v" to the beginning of the version.
 
+There are two aliases available: 'stable' and 'oldstable'. These aliases will be the newest Go release and the
+next most recent. For instance when go1.21.6 is the latest release, 'stable' will resolve to '1.21.x' and
+'oldstable' will resolve to '1.20.x'.
+
 Action runners come with some versions of go pre-installed. If any of those versions meet your semver constraint
 setup-go-faster will use those instead of checking whether a newer go available for download that meets your
 constraint. You can change this with the `ignore-local` input below.
@@ -114,6 +112,8 @@ For those who learn best from examples:
 | ^1.15.4            | installs a go that is >= 1.15.4 and < 2                                                        |
 | ~1.15.4            | installs a go that is >= 1.15.4 and < 1.16                                                     |
 | < 1.15.6 >= 1.15.4 | installs a go that is >= 1.15.4 and < 1.15.6                                                   |
+| stable             | installs the newest go release                                                                 |
+| oldstable          | installs the next most recent go release                                                       |
 | tip                | installs gotip  from source                                                                    |
 
 
diff --git a/action.yml b/action.yml
index 53c9447..a5dbd37 100644
--- a/action.yml
+++ b/action.yml
@@ -7,6 +7,10 @@ inputs:
       The version of go to install. It can be an exact version or a semver constraint like '1.14.x' or '^1.14.4'.
       Do not add "go" or "v" to the beginning of the version.
 
+      There are two aliases available: 'stable' and 'oldstable'. These aliases will be the newest Go release and the
+      next most recent. For instance when go1.21.6 is the latest release, 'stable' will resolve to '1.21.x' and
+      'oldstable' will resolve to '1.20.x'.
+
       Action runners come with some versions of go pre-installed. If any of those versions meet your semver constraint
       setup-go-faster will use those instead of checking whether a newer go available for download that meets your
       constraint. You can change this with the `ignore-local` input below.
@@ -38,6 +42,8 @@ inputs:
       | ^1.15.4            | installs a go that is >= 1.15.4 and < 2                                                        |
       | ~1.15.4            | installs a go that is >= 1.15.4 and < 1.16                                                     |
       | < 1.15.6 >= 1.15.4 | installs a go that is >= 1.15.4 and < 1.15.6                                                   |
+      | stable             | installs the newest go release                                                                 |
+      | oldstable          | installs the next most recent go release                                                       |
       | tip                | installs gotip  from source                                                                    |
 
   go-version-file:
diff --git a/bindown.yml b/bindown.yml
index b020c69..4d22e59 100644
--- a/bindown.yml
+++ b/bindown.yml
@@ -1,9 +1,10 @@
 systems:
   - darwin/amd64
+  - darwin/arm64
   - linux/amd64
 dependencies:
   action-doc:
-    template: action-doc#action-doc
+    template: action-doc
     vars:
       version: 0.4.0
   octo:
@@ -33,12 +34,22 @@ dependencies:
     required_vars:
       - ref
 templates:
-  action-doc#action-doc:
+  action-doc:
     url: https://github.com/WillAbides/action-doc/releases/download/v{{.version}}/action-doc_{{.version}}_{{.os}}_{{.arch}}.tar.gz
     systems:
       - darwin/amd64
+      - darwin/arm64
       - linux/386
       - linux/amd64
+    overrides:
+      - matcher:
+          os:
+            - darwin
+          arch:
+            - arm64
+        dependency:
+          vars:
+            arch: amd64
     required_vars:
       - version
   origin#octo:
@@ -81,22 +92,41 @@ templates:
     required_vars:
       - version
   origin#shellcheck:
-    url: https://github.com/koalaman/shellcheck/releases/download/v{{.version}}/shellcheck-v{{.version}}.{{.os}}.{{.arch}}.tar.xz
-    archive_path: shellcheck-v{{.version}}/shellcheck
+    homepage: https://www.shellcheck.net
+    description: ShellCheck, a static analysis tool for shell scripts
+    url: https://github.com/koalaman/shellcheck/releases/download/v{{.version}}/shellcheck-v{{.version}}.{{.os}}.{{.arch}}{{.urlSuffix}}
+    archive_path: shellcheck-v{{.version}}/shellcheck{{.archivePathSuffix}}
     bin: shellcheck
+    vars:
+      archivePathSuffix: ""
+      urlSuffix: .tar.xz
     overrides:
       - matcher:
           os:
             - windows
         dependency:
           url: https://github.com/koalaman/shellcheck/releases/download/v{{.version}}/shellcheck-v{{.version}}.zip
-          archive_path: shellcheck-v{{.version}}.exe
+          archive_path: shellcheck.exe
+      - matcher:
+          arch:
+            - arm64
+          os:
+            - darwin
+        dependency:
+          substitutions:
+            arch:
+              arm64: x86_64
     substitutions:
       arch:
         amd64: x86_64
+        arm: armv6hf
+        arm64: aarch64
     systems:
       - darwin/amd64
+      - darwin/arm64
       - linux/amd64
+      - linux/arm
+      - linux/arm64
       - windows/amd64
     required_vars:
       - version
@@ -138,6 +168,7 @@ url_checksums:
   https://github.com/koalaman/shellcheck/releases/download/v0.7.1/shellcheck-v0.7.1.linux.x86_64.tar.xz: 64f17152d96d7ec261ad3086ed42d18232fcb65148b44571b564d688269d36c8
   https://github.com/kward/shunit2/archive/ebc4baa08f045b7ef0f45c4b7d6f34f08d732f3d.tar.gz: d18b23a0db5deed5b0e10a732ac1f94579ac2781ce9408d62f0e847e3fa6910b
   https://github.com/mvdan/sh/releases/download/v3.6.0/shfmt_v3.6.0_darwin_amd64: b8c9c025b498e2816b62f0b717f6032e9ab49e725a45b8205f52f66318f17185
+  https://github.com/mvdan/sh/releases/download/v3.6.0/shfmt_v3.6.0_darwin_arm64: 633f242246ee0a866c5f5df25cbf61b6af0d5e143555aca32950059cf13d91e0
   https://github.com/mvdan/sh/releases/download/v3.6.0/shfmt_v3.6.0_linux_amd64: 5741a02a641de7e56b8da170e71a97e58050d66a3cf485fb268d6a5a8bb74afb
   https://github.com/octo-cli/octo-cli/releases/download/v0.23.0/octo-cli_0.23.0_Darwin_x86_64.tar.gz: 1388c1ca5838a453055930035c81b231b829ef3b0511cc7765dffdd73b83d355
   https://github.com/octo-cli/octo-cli/releases/download/v0.23.0/octo-cli_0.23.0_Linux_x86_64.tar.gz: 7bad6194d91bd9cd86a348dadafd7725b3bb4010afe36294df0740e8c815947a
diff --git a/src/install-go b/src/install-go
index 7e6db22..b796697 100755
--- a/src/install-go
+++ b/src/install-go
@@ -30,7 +30,12 @@ if [ -d "$target_dir" ]; then
   fi
 fi
 
-[ -n "$skip_install" ] || install_go "$install_go_version" "$target_dir"
+if [ -z "$skip_install" ]; then
+  tmp_dir="$(tmpdir_name tmp)"
+  trap 'rm -rf -- "$tmp_dir"' EXIT
+  mkdir -p -- "$tmp_dir"
+  install_go "$install_go_version" "$target_dir" "$tmp_dir"
+fi
 
 GITHUB_ENV="${GITHUB_ENV:-/dev/null}"
 GITHUB_PATH="${GITHUB_PATH:-/dev/null}"
diff --git a/src/lib b/src/lib
index aa2c38b..b862cbf 100755
--- a/src/lib
+++ b/src/lib
@@ -111,14 +111,11 @@ version_archive_name() {
   echo "$version.$(system_os "$system")-$(system_arch "$system")$extension"
 }
 
-init_tmpdir() {
+tmpdir_name() {
+  local dir_name="${1:-"tmp"}"
   local tmpdir="$RUNNER_WORKSPACE"
   tmpdir="${tmpdir:-"$TMPDIR"}"
-  tmpdir="$tmpdir/setup-go-faster/tmp"
-  mkdir -p "$tmpdir"
-  rm -rf "$tmpdir"
-  mkdir -p "$tmpdir"
-  trap 'rm -rf "$tmpdir"' EXIT
+  tmpdir="$tmpdir/setup-go-faster/$dir_name"
   echo "$tmpdir"
 }
 
@@ -132,6 +129,7 @@ download_go_url() {
 install_go() {
   local go_version="${1#go}"
   local target_dir="$2"
+  local tmpdir="$3"
   debug_out "installing go $go_version to $target_dir"
   local system
   system="$(go_system)"
@@ -141,7 +139,6 @@ install_go() {
   fi
   rm -rf "$target_dir"
   mkdir -p "$(dirname "$target_dir")"
-  tmpdir="$(init_tmpdir)"
   cd "$tmpdir"
 
   archive_name="$(version_archive_name go"$go_version" "$system")"
@@ -261,3 +258,40 @@ select_go_version_from_file() {
 
   normalize_go_version "$found_version"
 }
+
+get_known_versions() {
+  local versions_url="$1"
+  local tmp_dir="$2"
+  local file="$tmp_dir/versions.txt"
+  if [ -f "$file" ]; then
+    cat "$file"
+    return
+  fi
+  curl --retry 4 -s --fail -o "$file" "$versions_url"
+  cat "$file"
+}
+
+get_stable_minor_version() {
+  local versions_url="$1"
+  local tmp_dir="$2"
+  local versions
+  get_known_versions "$versions_url" "$tmp_dir" | grep -E '^go1\.[0-9]+(\.[0-9]+)?$' | head -1 | awk -F. '{print $2}'
+}
+
+resolve_constraint_alias() {
+  local constraint="$1"
+  local versions_url="$2"
+  local tmp_dir="$3"
+  case "$constraint" in
+    stable)
+      echo "1.$(get_stable_minor_version "$versions_url" "$tmp_dir").x"
+      ;;
+    oldstable)
+      minor_version="$(get_stable_minor_version "$versions_url" "$tmp_dir")"
+      echo "1.$((minor_version - 1)).x"
+      ;;
+    *)
+      echo "$constraint"
+      ;;
+  esac
+}
diff --git a/src/lib_test.sh b/src/lib_test.sh
index 36d133f..d998a73 100755
--- a/src/lib_test.sh
+++ b/src/lib_test.sh
@@ -8,6 +8,10 @@ setUp() {
   . src/lib
 }
 
+# Nothing special about this one. It just happens to be HEAD of main when writing this.
+# Most recent version is go1.21rc4
+STABLE_VERSIONS_URL="https://raw.githubusercontent.com/WillAbides/goreleases/077db58ac86a8a2fb63c90817090e132eded0f3d/versions.txt"
+
 test_homedir() {
   (
     export USERPROFILE="windows home"
@@ -166,4 +170,10 @@ test_supported_system() {
 
 }
 
+test_resolve_constraint_alias() {
+  assertEquals "1.20.x" "$(resolve_constraint_alias "stable" "$STABLE_VERSIONS_URL" "$SHUNIT_TMPDIR")"
+  assertEquals "1.19.x" "$(resolve_constraint_alias "oldstable" "$STABLE_VERSIONS_URL" "$SHUNIT_TMPDIR")"
+  assertEquals "xxx" "$(resolve_constraint_alias "xxx" "$STABLE_VERSIONS_URL" "$SHUNIT_TMPDIR")"
+}
+
 . ./external/shunit2
diff --git a/src/lib_test_long.sh b/src/lib_test_long.sh
index 75f3426..17b9b0d 100755
--- a/src/lib_test_long.sh
+++ b/src/lib_test_long.sh
@@ -14,10 +14,12 @@ test_install_go() {
     RUNNER_TEMP="${RUNNER_TEMP:-"$tmpspace/runner_temp"}"
     export RUNNER_TEMP
     target="$tmpspace/go_target"
-    version="1.15.4"
-    install_go "$version" "$target"
+    version="1.16.4"
+    inst_tmp="$tmpspace/inst_tmp"
+    mkdir -p "$inst_tmp"
+    install_go "$version" "$target" "$inst_tmp"
     got_version="$("$target/bin/go" version)"
-    assertEquals "go version go1.15.4 $(go_system)" "$got_version"
+    assertEquals "go version go1.16.4 $(go_system)" "$got_version"
   )
 }
 
diff --git a/src/run b/src/run
index d0b4b34..0b417b5 100755
--- a/src/run
+++ b/src/run
@@ -27,6 +27,10 @@ VERSIONS_URL="${VERSIONS_URL:-https://raw.githubusercontent.com/WillAbides/gorel
 
 debug_out starting run
 
+tmp_dir="$(tmpdir_name runtmp)"
+trap 'rm -rf -- "$tmp_dir"' EXIT
+mkdir -p -- "$tmp_dir"
+
 export INSTALL_GO_TIP
 
 # shellcheck disable=2153 # false positive about GO_VERSION being a misspelling of go_version
@@ -47,6 +51,8 @@ if [ "$constraint" = "tip" ] || [ "$constraint" = "gotip" ]; then
   INSTALL_GO_TIP=1
 fi
 
+constraint="$(resolve_constraint_alias "$constraint" "$VERSIONS_URL" "$tmp_dir")"
+
 if [ -z "$constraint" ]; then
   constraint=">=$(select_go_version_from_file "$GITHUB_WORKSPACE/$GO_VERSION_FILE")"
 fi
@@ -75,7 +81,7 @@ if [ -z "$lv" ]; then
 fi
 
 if [ -z "$lv" ]; then
-  known_versions="$(curl --retry 4 -s --fail "$VERSIONS_URL")"
+  known_versions="$(get_known_versions "$VERSIONS_URL" "$tmp_dir")"
   lv="$(select_remote_version "$constraint" "$known_versions")"
   target_dir="$install_parent/${lv#go}/x64"
 fi
diff --git a/src/run_test_long.sh b/src/run_test_long.sh
index 5c7a0c3..8523023 100755
--- a/src/run_test_long.sh
+++ b/src/run_test_long.sh
@@ -35,9 +35,9 @@ do_test_run() {
   assertContains "$(grep '^GOROOT=' "$GITHUB_OUTPUT")" "$WANT_GOROOT"
 }
 
-test_run_1_15_x() {
-  GO_VERSION="1.15.x" \
-    WANT_VERSION="1.15.15" \
+test_run_1_16_x() {
+  GO_VERSION="1.16.x" \
+    WANT_VERSION="1.16.15" \
     do_test_run
 }
 
@@ -59,6 +59,18 @@ test_run_1_21rc4() {
     do_test_run
 }
 
+test_run_stable() {
+  GO_VERSION="stable" \
+    WANT_VERSION="1.20.7" \
+    do_test_run
+}
+
+test_run_oldstable() {
+  GO_VERSION="oldstable" \
+    WANT_VERSION="1.19.12" \
+    do_test_run
+}
+
 test_go_mod() {
   GO_VERSION_FILE="$SHUNIT_TMPDIR"/test_go_mod/go.mod
   mkdir -p -- "$(dirname -- "$GO_VERSION_FILE")"