# Changelog v0.3.43 - 2026-04-09

### Added
- Added new anonymous telemetry events for real product usage: `app_use` records which tool, provider, and model users actually launch, while `app_action` tracks a small set of high-signal in-app actions such as endpoint installs, API key save/remove flows, and shell env export toggles.
- Added per-session telemetry linking with a generated `session_id`, so `app_start`, `app_use`, and action events can be analyzed together while still keeping users anonymous through the existing persistent install-scoped `distinct_id`.
- Added launch outcome tracking with `app_use_result`, so the dashboard can distinguish successful launches from blocked flows like incompatible model/tool combinations or missing CLI installs.

### Changed
- Extended the telemetry pipeline to support custom event properties on top of the shared anonymous metadata (`app`, `version`, `mode`, `system`, `terminal`) without introducing a second analytics path.
- Updated the README telemetry section to explain that anonymous analytics now cover launched tool/provider/model metadata and a few product actions, while still explicitly excluding prompts, source code, file paths, API keys, and secrets.

### Fixed
- Added regression coverage for telemetry opt-out behavior and event payload shape, ensuring the new launch/action events stay disabled under `--no-telemetry` or `FREE_CODING_MODELS_TELEMETRY=0`.