# 1.0.0-beta.15 Release Review

## Findings

No blocking findings.

- Ready for controller release gate. The beta15 candidate consistently scopes
  this release as reserved generic collection boundary hardening plus a
  collection ledger, without promoting executable generics, maps, sets,
  generic stdlib dispatch, runtime names, ABI/layout, or stable API behavior.
- Evidence: the release contract preserves diagnostic shape/codes/schema while
  allowing reserved-boundary prose rewording
  (`.llm/BETA_15_RESERVED_GENERIC_COLLECTION_BOUNDARY_HARDENING.md:5`,
  `.llm/BETA_15_RESERVED_GENERIC_COLLECTION_BOUNDARY_HARDENING.md:27`,
  `.llm/BETA_15_RESERVED_GENERIC_COLLECTION_BOUNDARY_HARDENING.md:49`),
  public docs describe the same boundary
  (`README.md:86`, `docs/language/COLLECTIONS.md:12`,
  `docs/language/COLLECTIONS.md:113`), and compiler docs mirror the
  centralized-diagnostic scope (`docs/compiler/RELEASE_NOTES.md:28`,
  `docs/compiler/ROADMAP.md:64`).
- Evidence: reserved diagnostic construction is centralized in
  `compiler/src/reserved.rs:9`, `compiler/src/reserved.rs:62`,
  `compiler/src/reserved.rs:77`, `compiler/src/reserved.rs:92`, and
  `compiler/src/reserved.rs:107`; lowerer, formatter, and checker paths import
  those helpers at `compiler/src/lower.rs:12`,
  `compiler/src/formatter.rs:6`, and `compiler/src/check.rs:10`.
- Evidence: release gate wiring includes the focused beta15 test at
  `scripts/release-gate.sh:68`, and the version bump is present in
  `compiler/Cargo.toml:3` and `compiler/Cargo.lock:7`.

## Verification

- `cargo fmt --check`: passed.
- `cargo test --test reserved_generic_collection_beta15`: passed, 1 test.
- `cargo test --test diagnostics_contract`: passed, 1 test.
- `cargo test --test formatter`: passed, 16 tests.
- `cargo test --test project_mode`: passed, 36 tests.
- `rg -n "not supported in beta\\.9" compiler/src tests`: passed, no matches.
- `git diff --check`: passed.

Additional review scans:

- Current-stage stale beta14 scan across README/docs/.llm/Cargo metadata:
  passed, no current-stage matches.
- Private/local publication text scan across README, docs, scripts, compiler
  sources/tests, lib, examples, benchmarks, tests, and `.llm`: passed, no
  matches.

## Residual Risk

Full release gate was not run by this reviewer because the requested scope was
focused review-only. Controller should still run `./scripts/release-gate.sh`
after accepting the candidate and before tagging/publishing.