diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9f153e0..7a1bb37 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -76,6 +76,24 @@ jobs:
       - name: cd lib && cargo +nightly build --release --no-default-features
         run: cargo +nightly build --release --no-default-features
         working-directory: lib
+      - name: cd lib && cargo +nightly build --features=v3-preview
+        run: cargo +nightly build --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --release --features=v3-preview
+        run: cargo +nightly build --release --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --no-default-features --features=alloc --features=v3-preview
+        run: cargo +nightly build --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --release --no-default-features --features=alloc --features=v3-preview
+        run: cargo +nightly build --release --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --no-default-features --features=v3-preview
+        run: cargo +nightly build --no-default-features --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --release --no-default-features --features=v3-preview
+        run: cargo +nightly build --release --no-default-features --features=v3-preview
+        working-directory: lib
       - name: cd lib/macro/internal && cargo +nightly build
         run: cargo +nightly build
         working-directory: lib/macro/internal
@@ -109,6 +127,9 @@ jobs:
       - name: cd lib && cargo +nightly test
         run: cargo +nightly test
         working-directory: lib
+      - name: cd lib && cargo +nightly test --features=v3-preview
+        run: cargo +nightly test --features=v3-preview
+        working-directory: lib
       - name: cd lib/macro/internal && cargo +nightly test
         run: cargo +nightly test
         working-directory: lib/macro/internal
@@ -139,9 +160,15 @@ jobs:
       - name: cd lib && cargo +nightly miri test
         run: cargo +nightly miri test
         working-directory: lib
+      - name: cd lib && cargo +nightly miri test --features=v3-preview
+        run: cargo +nightly miri test --features=v3-preview
+        working-directory: lib
       - name: cd lib && cargo +nightly bench
         run: cargo +nightly bench
         working-directory: lib
+      - name: cd lib && cargo +nightly bench --features=v3-preview
+        run: cargo +nightly bench --features=v3-preview
+        working-directory: lib
       - run: cd bin && ./bench.sh +nightly
       - name: cd lib && cargo +nightly audit --deny=warnings
         run: cargo +nightly audit --deny=warnings
@@ -152,21 +179,6 @@ jobs:
       - name: cd lib/macro && cargo +nightly audit --deny=warnings
         run: cargo +nightly audit --deny=warnings
         working-directory: lib/macro
-      - name: cd bin && cargo +nightly audit --deny=warnings
-        run: cargo +nightly audit --deny=warnings
-        working-directory: bin
-      - name: cd nostd && cargo +nightly audit --deny=warnings
-        run: cargo +nightly audit --deny=warnings
-        working-directory: nostd
-      - name: cd lib/fuzz && cargo +nightly audit --deny=warnings
-        run: cargo +nightly audit --deny=warnings
-        working-directory: lib/fuzz
-      - name: cd cmp && cargo +nightly audit --deny=warnings
-        run: cargo +nightly audit --deny=warnings
-        working-directory: cmp
-      - name: cd www && cargo +nightly audit --deny=warnings
-        run: cargo +nightly audit --deny=warnings
-        working-directory: www
       - run: rustup install stable
       - run: cargo +stable install cargo-semver-checks
       - name: cd lib && cargo +stable build
@@ -187,6 +199,24 @@ jobs:
       - name: cd lib && cargo +stable build --release --no-default-features
         run: cargo +stable build --release --no-default-features
         working-directory: lib
+      - name: cd lib && cargo +stable build --features=v3-preview
+        run: cargo +stable build --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --release --features=v3-preview
+        run: cargo +stable build --release --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --no-default-features --features=alloc --features=v3-preview
+        run: cargo +stable build --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --release --no-default-features --features=alloc --features=v3-preview
+        run: cargo +stable build --release --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --no-default-features --features=v3-preview
+        run: cargo +stable build --no-default-features --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --release --no-default-features --features=v3-preview
+        run: cargo +stable build --release --no-default-features --features=v3-preview
+        working-directory: lib
       - name: cd lib/macro/internal && cargo +stable build
         run: cargo +stable build
         working-directory: lib/macro/internal
@@ -277,6 +307,24 @@ jobs:
       - name: cd lib && cargo +nightly build --release --no-default-features
         run: cargo +nightly build --release --no-default-features
         working-directory: lib
+      - name: cd lib && cargo +nightly build --features=v3-preview
+        run: cargo +nightly build --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --release --features=v3-preview
+        run: cargo +nightly build --release --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --no-default-features --features=alloc --features=v3-preview
+        run: cargo +nightly build --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --release --no-default-features --features=alloc --features=v3-preview
+        run: cargo +nightly build --release --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --no-default-features --features=v3-preview
+        run: cargo +nightly build --no-default-features --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +nightly build --release --no-default-features --features=v3-preview
+        run: cargo +nightly build --release --no-default-features --features=v3-preview
+        working-directory: lib
       - name: cd lib/macro/internal && cargo +nightly build
         run: cargo +nightly build
         working-directory: lib/macro/internal
@@ -314,6 +362,24 @@ jobs:
       - name: cd lib && cargo +stable build --release --no-default-features
         run: cargo +stable build --release --no-default-features
         working-directory: lib
+      - name: cd lib && cargo +stable build --features=v3-preview
+        run: cargo +stable build --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --release --features=v3-preview
+        run: cargo +stable build --release --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --no-default-features --features=alloc --features=v3-preview
+        run: cargo +stable build --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --release --no-default-features --features=alloc --features=v3-preview
+        run: cargo +stable build --release --no-default-features --features=alloc --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --no-default-features --features=v3-preview
+        run: cargo +stable build --no-default-features --features=v3-preview
+        working-directory: lib
+      - name: cd lib && cargo +stable build --release --no-default-features --features=v3-preview
+        run: cargo +stable build --release --no-default-features --features=v3-preview
+        working-directory: lib
       - name: cd lib/macro/internal && cargo +stable build
         run: cargo +stable build
         working-directory: lib/macro/internal
diff --git a/lib/CHANGELOG.md b/lib/CHANGELOG.md
index 4e4414b..0616093 100644
--- a/lib/CHANGELOG.md
+++ b/lib/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ### Patch
 
+- Fix `needless-lifetimes` clippy lint
 - Improve documentation of `Encoding::decode_len()` (fixes #111)
 
 ## 2.6.0
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 8ea7ed1..2a90cb7 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -1631,7 +1631,7 @@ pub struct Encoder<'a> {
 }
 
 #[cfg(feature = "alloc")]
-impl<'a> Drop for Encoder<'a> {
+impl Drop for Encoder<'_> {
     fn drop(&mut self) {
         self.encoding.encode_append(&self.buffer[.. self.length as usize], self.output);
     }
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index ceaf53d..4585856 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -496,6 +496,11 @@ impl Actions {
                     // SemverChecks only guarantees support for stable.
                     toolchain = Toolchain::Stable;
                 }
+                // TODO(https://github.com/rustsec/rustsec/pull/1206): Remove when released.
+                if task == Task::Audit && !matches!(dir, Dir::Lib | Dir::MacroInternal | Dir::Macro)
+                {
+                    continue;
+                }
                 actions.insert(Action { os, toolchain, task, dir });
             }
         }