Run NEON SIMD bundle check in CI

Author: eldryoth

.github/workflows/ci.yml

@@ -57,7 +57,10 @@ jobs:
       - name: Reproducible package/build check
         run: scripts/reproducible_build_check.sh
 
-      - name: Check x86 SIMD feature bundles
+      - name: Install SIMD feature-bundle targets
+        run: rustup target add aarch64-unknown-linux-gnu
+
+      - name: Check SIMD feature bundles
         run: scripts/check_simd_feature_bundles.sh
 
   platform:

CHANGELOG.md

@@ -31,6 +31,8 @@
   detection, and `target_feature` gates remain confined to `src/simd.rs`.
 - Extended the SIMD feature-bundle check to compile the reserved NEON path
   under `no_std` when `aarch64-unknown-linux-gnu` is installed.
+- Updated CI to install `aarch64-unknown-linux-gnu` before the SIMD
+  feature-bundle check so NEON reserved-build evidence runs in automation.
 - Updated security documentation for streaming wrapper buffer cleanup behavior.
 - Updated release evidence documentation for stream fuzzing and reserved SIMD
   feature-bundle checks.

docs/RELEASE.md

@@ -30,7 +30,8 @@ The release gate covers:
 - Miri no-default-features tests when nightly Miri is installed
 - docs
 - installed cross-target `no_std` checks
-- reserved x86 SIMD feature-bundle compile checks
+- reserved SIMD feature-bundle compile checks for AVX2, AVX-512 VBMI, and NEON
+  when the corresponding Rust targets are installed
 - cargo-deny policy
 - RustSec audit
 - license inventory
@@ -132,7 +133,7 @@ cargo +nightly fuzz run stream_chunks -- -runs=1000
 
 Review generated local corpus files before committing.
 
-Reserved x86 SIMD feature bundles are checked with:
+Reserved SIMD feature bundles are checked with:
 
 ```sh
 scripts/check_simd_feature_bundles.sh