Letta Code v0.34.3 Release Notes — What's New

What's Changed

feat(memfs): add read-only file policy [LET-13616] by @letta-integration[bot] in https://github.com/letta-ai/letta-code/pull/4910
fix(context): name the shell in the environment block on macOS and Linux by @cpacker in https://github.com/letta-ai/letta-code/pull/4916
feat(subagents): let subagents launch one nested layer and message their parent [LET-13640] by @cpacker in https://github.com/letta-ai/letta-code/pull/4915
feat(subagents): inherit parent MCP servers automatically by @letta-integration[bot] in https://github.com/letta-ai/letta-code/pull/4921
refactor(subagents): reuse parent linkage for MCP inheritance by @letta-integration[bot] in https://github.com/letta-ai/letta-code/pull/4923
fix(listener): run scheduled turns without a subscribed client by @cpacker in https://github.com/letta-ai/letta-code/pull/4925
docs(tools): point PR creation at WatchPR for readiness by @cpacker in https://github.com/letta-ai/letta-code/pull/4922
fix(agent): finish remote child wait when its Super Run is complete [LET-13200] by @cpacker in https://github.com/letta-ai/letta-code/pull/4924
fix(subagents): TaskStop cancels the remote run before reporting stopped [LET-13347] by @cpacker in https://github.com/letta-ai/letta-code/pull/4929
ci(review): flag system prompt edits in Slack via Amelia [LET-13670] by @cpacker in https://github.com/letta-ai/letta-code/pull/4928
test(tools): keep the shell-secrets background notice out of later test files by @letta-integration[bot] in https://github.com/letta-ai/letta-code/pull/4947
fix(local-backend): retry ChatGPT model-access check failures by @cpacker in https://github.com/letta-ai/letta-code/pull/4946
fix(local): lock OAuth credential refreshes across processes by @cpacker in https://github.com/letta-ai/letta-code/pull/4942
fix(memory): stop gating tools on refreshes of existing checkouts by @cpacker in https://github.com/letta-ai/letta-code/pull/4934
fix(subagents): inherit parent secrets across the MCP trust boundary by @cpacker in https://github.com/letta-ai/letta-code/pull/4933
fix(tools): restore the foreground sleep block in Bash by @cpacker in https://github.com/letta-ai/letta-code/pull/4932
fix(tools): reject truncated or agent IDs as SendAgentMessage conversation_id by @cpacker in https://github.com/letta-ai/letta-code/pull/4931
fix(mods): name the cancelling mod in turn_start cancel notices [LET-12868] by @cpacker in https://github.com/letta-ai/letta-code/pull/4949
feat(cli): merge model_settings via letta model set by @cpacker in https://github.com/letta-ai/letta-code/pull/4950
fix(subagents): run external coding-agent CLIs in the workload slice by @cpacker in https://github.com/letta-ai/letta-code/pull/4951
chore: bump version to 0.34.3 by @github-actions[bot] in https://github.com/letta-ai/letta-code/pull/4919

Full Changelog: https://github.com/letta-ai/letta-code/compare/v0.34.2...v0.34.3