Release v0.19.0

Changes from 0.18.4 to 0.19.0

What's Changed

• fix: index only the user-selected file/dir from @ autocomplete by @shelleypham in #1388
• fix: TB regression workflow fixes (venv, Modal, warnings) by @devanshrj in #1385
• fix: improve bash-mode backspace exit behavior by @jnjpng in #1386
• feat: TB regression — full runs, xhigh models, baselines, and report improvements by @devanshrj in #1390
• fix: Stabilize subagent lifecycle and polish subagent live display [LET-7764] by @devanshrj in #1391
• fix(reflection): given reflection agents the parent memory by @sarahwooders in #1376
• feat(tools): add client-side memory tool with git-backed sync by @sarahwooders in #1363
• feat: warn at startup when context repositories are not enabled by @sarahwooders in #1396
• revert: restore free-tier lock emoji behavior in model selector by @sarahwooders in #1398
• feat(tools): remove memory tool from default toolsets by @sarahwooders in #1401
• fix: add sendMessageStream boundary debug metadata by @jnjpng in #1403
• docs: rewrite dispatching-coding-agents skill prompt by @sarahwooders in #1400
• fix(startup): clear Letta Code tool rules on boot by @cpacker in #1405
• fix: replace console.debug with debugLog in updateAgentSystemPrompt by @devanshrj in #1407
• fix(debug): unify LETTA_DEBUG and DEBUG gating by @jnjpng in #1408
• fix(ci): make ci green by @cpacker in #1409
• feat(listen): add protocol_v2, move ws server to v2 by @cpacker in #1387
• feat(statusline): include memfs metadata in command payload by @jnjpng in #1389
• feat(cli): add thinking indicator tip bar with memory tips by @devanshrj in #1410
• refactor(listen): split client into modules by @cpacker in #1413
• refactor(cli): move /system upgrade hint into thinking tips by @devanshrj in #1411
• fix(statusline): align turn_count with reflection cadence source by @jnjpng in #1414
• fix(headless): auto-deny interactive approvals during recovery by @cpfiffer in #1415
• feat: default agents and subagents to auto model by @sarahwooders in #1392
• fix(cli): default summarization model and reconcile attached agent tools by @sarahwooders in #1399
• feat(cli): add /recompile slash command by @sarahwooders in #1412
• fix(statusline): re-arm polling when config changes by @jnjpng in #1416
• fix(init): make shallow init adapt to existing memory structure [LET-7995] by @devanshrj in #1417
• feat(listen): make listener runtime conversation-scoped by @cpacker in #1418

Full Changelog: v0.18.4...v0.19.0