diff --git a/CHANGELOG.md b/CHANGELOG.md
index b48ce6f55..cf9913fe7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,34 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [2.15.0] - 2026-03-15
+
+### Added
+- **8 new commands**: budget enforcement, notifications, and quality-of-life improvements (#441)
+- **Preferences schema validation**: detects unknown/typo'd preference keys and surfaces warnings instead of silently ignoring them (#542)
+- **Pipeline-aware prompts**: each agent phase (research, plan, execute, complete) now knows its role in the pipeline, eliminating redundant code exploration between phases (#543)
+- **Research depth calibration**: three-tier system (deep/targeted/light) so agents match effort to actual complexity (#543)
+
+### Changed
+- Auto-mode decomposed into focused modules for maintainability (#534)
+- Dispatch logic extracted from if-else chain to dispatch table (#539)
+- v1 migration code gated behind dynamic import — only loaded when needed (#541)
+- Background shell module decomposed into focused modules
+- Unified cache invalidation into single `invalidateAllCaches()` function (#545)
+
+### Fixed
+- Executor agents now receive explicit working directory, preventing writes to main repo instead of worktree (#543)
+- Merge loop and .gsd/ conflict auto-resolution in worktree model, `git.isolation` preference restored (#536)
+- Arrow keys no longer insert escape sequences as text during LLM streaming (#493)
+- YAML preferences parser hardened for OpenRouter model IDs with special characters (#488)
+- `@` file autocomplete debounced to prevent TUI freeze on large codebases (#448)
+- Auto-mode stops cleanly when dispatch gap watchdog fails (#537)
+- Synchronous I/O removed from hot paths (#540)
+- Silent catch blocks now capture error references for crash diagnostics (#546)
+- `ctx.log` error in GSD provider recovery path fixed
+- TUI resource leaks patched in loader, cancellable-loader, input, and editor components (#482)
+- Hardcoded ANSI escapes replaced with chalk for consistent terminal handling (#482)
+
 ## [2.14.4] - 2026-03-15
 
 ### Fixed
@@ -658,7 +686,8 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 ### Changed
 - License updated to MIT
 
-[Unreleased]: https://github.com/gsd-build/gsd-2/compare/v2.14.4...HEAD
+[Unreleased]: https://github.com/gsd-build/gsd-2/compare/v2.15.0...HEAD
+[2.15.0]: https://github.com/gsd-build/gsd-2/compare/v2.14.4...v2.15.0
 [2.14.4]: https://github.com/gsd-build/gsd-2/compare/v2.14.3...v2.14.4
 [2.14.3]: https://github.com/gsd-build/gsd-2/compare/v2.14.2...v2.14.3
 [2.14.2]: https://github.com/gsd-build/gsd-2/compare/v2.14.1...v2.14.2