v0.5.3 发布（最新）
v0.5.3 于 2026-09-13T18:44:18Z 发布为 GitHub Release v0.5.3（release task：Issue #821）。
Tag 状态（对 origin 验证）
Release notes
Changelog
Features
- 技术债：(run_id, issue, branch, worktree) 作为散装参数穿过 14 个函数 (Issue #290; PR #828)
- Runner 并发上限硬编码为 2，配置超界会让该仓全部实例拒绝启动 (Issue #829; PR #834)
Deployment and operations
- max_concurrency 上限被硬编码的 systemd 单元名元组卡死在 2：配置改 3 无效，实例 2/3 每 tick 启动即失败 (Issue #827; PR #832)
Observability
- 验证指标二：合并评论与 journal 写入 external_commits，记录合并前是否有引擎之外的提交 (Issue #833; PR #836)
Bug fixes
- release notes 把 release 票自己列进「NOT released」 (Issue #818; PR #823)
- P0 死循环：接续换 run id 但 PR marker 不换，一次 502 让 orbi-cloud 整天零合并（82 次同错、389 条重复评论） (Issue #825; PR #830)
Contributors
- tag:
v0.5.3 - release commit:
97e402386d908119c170acb435331093c48a3614 - release task: Issue #821
Scope (verified item by item)
- Issue #290 closed
- Issue #818 closed
- Issue #825 closed
- Issue #827 closed
- Issue #829 closed
- Issue #833 closed
Pre-release gates
- no open Issue in milestone ‘v0.5.3’ carries ai-in-progress / ai-pr-opened / ai-fix-needed
- CI on the release commit: 4 check(s) all success/neutral/skipped (waited 300s for pending checks)
Tests
- release tests gated by GitHub Actions CI on the release commit 97e402386d908119c170acb435331093c48a3614 (the #268 CI-wait gate; no local test execution)