5.2.0 (2026-05-19)
Features
- add SubagentRuntime interface and factory (b316c12)
- thread defaultMaxTurns and graceTurns through RunOptions (db9f1ac)
Bug Fixes
- remove pi-subagents/README.md from rumdl exclude and fix 131 lint issues (50f334c)
Documentation
- enforce one-sentence-per-line across all markdown files (a533869)
- one sentence per line throughout architecture.md; add Issue-prefix and sentence rules to markdown-conventions (f274ea8)
- pi-subagents: add structural refactoring roadmap with issue sequencing (a820538)
- plan SubagentRuntime to eliminate module-scope mutable state (#69) (fa5eee4)
- retro: add follow-up retro notes for issue #57 (629e11f)
- retro: add retro notes for issue #57 (1701841)