### New Features
- Namespaced keybinding ids and a unified keybinding manager across the app and TUI. See [docs/keybindings.md](docs/keybindings.md) and [docs/extensions.md](docs/extensions.md).
- JSONL session export and import via `/export <path.jsonl>` and `/import <path.jsonl>`. See [README.md](README.md) and [docs/session.md](docs/session.md).
- Resizable sidebar in HTML share and export views. See [README.md](README.md).
### Breaking Changes
- Interactive keybinding ids are now namespaced, and `keybindings.json` now uses those same canonical namespaced ids. Older config files are migrated automatically on startup. Custom editors and extension UI components still receive an injected `keybindings: KeybindingsManager`. They do not call `getKeybindings()` or `setKeybindings()` themselves. Declaration merging applies to that injected type ([#2391](https://github.com/badlogic/pi-mono/issues/2391))
- Extension author migration: update `keyHint()`, `keyText()`, and injected `keybindings.matches(...)` calls from old built-in names like `"expandTools"`, `"selectConfirm"`, and `"interrupt"` to namespaced ids like `"app.tools.expand"`, `"tui.select.confirm"`, and `"app.interrupt"`. See [docs/keybindings.md](docs/keybindings.md) for the full list. `pi.registerShortcut("ctrl+shift+p", ...)` is unchanged because extension shortcuts still use raw key combos, not keybinding ids.
### Added
- Added `gpt-5.4-mini` to the `openai-codex` model catalog ([#2334](https://github.com/badlogic/pi-mono/pull/2334) by [@justram](https://github.com/justram))
- Added JSONL session export and import via `/export <path.jsonl>` and `/import <path.jsonl>` ([#2356](https://github.com/badlogic/pi-mono/pull/2356) by [@hjanuschka](https://github.com/hjanuschka))
- Added a resizable sidebar to HTML share and export views ([#2435](https://github.com/badlogic/pi-mono/pull/2435) by [@dmmulroy](https://github.com/dmmulroy))
### Fixed
- Tests for session-selector-rename and tree-selector are now keybinding-agnostic, resetting editor keybindings to defaults before each test so user `keybindings.json` cannot cause failures ([#2360](https://github.com/badlogic/pi-mono/issues/2360))
- Fixed custom `keybindings.json` overrides to shadow conflicting default shortcuts globally, so bindings such as `cursorUp: ["up", "ctrl+p"]` no longer leave default actions like model cycling active ([#2391](https://github.com/badlogic/pi-mono/issues/2391))
- Fixed concurrent `edit` and `write` mutations targeting the same file to run serially, preventing interleaved file writes from overwriting each other ([#2327](https://github.com/badlogic/pi-mono/issues/2327))
- Fixed RPC mode to redirect unexpected stdout writes to stderr so JSONL responses remain parseable ([#2388](https://github.com/badlogic/pi-mono/issues/2388))
- Fixed auto-retry with tool-using retry responses so `session.prompt()` waits for the full retry loop, including tool execution, before returning ([#2440](https://github.com/badlogic/pi-mono/pull/2440) by [@pasky](https://github.com/pasky))
- Fixed `/model` to refresh scoped model lists after `models.json` changes, avoiding stale selector contents ([#2408](https://github.com/badlogic/pi-mono/pull/2408) by [@Perlence](https://github.com/Perlence))
- Fixed `validateToolArguments()` to fall back gracefully when AJV schema compilation is blocked in restricted runtimes such as Cloudflare Workers, allowing tool execution to proceed without schema validation ([#2395](https://github.com/badlogic/pi-mono/issues/2395))
- Fixed CLI startup to suppress process warnings from leaking into terminal, print, and RPC output ([#2404](https://github.com/badlogic/pi-mono/issues/2404))
- Fixed bash tool rendering to show elapsed time at the bottom of the tool block ([#2406](https://github.com/badlogic/pi-mono/issues/2406))
- Fixed custom theme file watching to reload updated theme contents from disk instead of keeping stale cached theme data ([#2417](https://github.com/badlogic/pi-mono/issues/2417), [#2003](https://github.com/badlogic/pi-mono/issues/2003))
- Fixed footer Git branch refreshes to run asynchronously so branch watcher updates do not block the UI ([#2418](https://github.com/badlogic/pi-mono/issues/2418))
- Fixed invalid extension provider registrations to surface an extension error without preventing other providers from loading ([#2431](https://github.com/badlogic/pi-mono/issues/2431))
- Fixed Windows bash execution hanging for commands that spawn detached descendants inheriting stdout/stderr handles, which caused `agent-browser` and similar commands to spin forever ([#2389](https://github.com/badlogic/pi-mono/pull/2389) by [@mrexodia](https://github.com/mrexodia))
- Fixed `google-vertex` API key resolution to ignore placeholder auth markers like `<authenticated>` and fall back to ADC instead of sending them as literal API keys ([#2335](https://github.com/badlogic/pi-mono/issues/2335))
- Fixed desktop clipboard text copy to prefer native OS clipboard integration before shell fallbacks, improving reliability on macOS and Windows ([#2347](https://github.com/badlogic/pi-mono/issues/2347))
- Fixed Bun Bedrock provider registration to survive provider resets and session reloads in compiled binaries ([#2350](https://github.com/badlogic/pi-mono/pull/2350) by [@unexge](https://github.com/unexge))
- Fixed OpenRouter reasoning requests to use the provider's nested reasoning payload, restoring thinking level support for OpenRouter models and custom compat settings ([#2298](https://github.com/badlogic/pi-mono/pull/2298) by [@PriNova](https://github.com/PriNova))
- Fixed Bedrock application inference profiles to support prompt caching when `AWS_BEDROCK_FORCE_CACHE=1` is set, covering profile ARNs that do not expose the underlying Claude model name ([#2346](https://github.com/badlogic/pi-mono/pull/2346) by [@haoqixu](https://github.com/haoqixu))