What's Changed

• feat(agentstack-server): support stdio mcp by @JanPokorny in https://github.com/i-am-bee/agentstack/pull/1606
• feat(sdk): add tool call extension by @pilartomas in https://github.com/i-am-bee/agentstack/pull/1572
• feat(ui): add A2A error extension by @PetrBulanek in https://github.com/i-am-bee/agentstack/pull/1655
• fix(ui): dynamic server usage error by @PetrBulanek in https://github.com/i-am-bee/agentstack/pull/1658
• feat(ui): make context token permissions configurable via env by @PetrBulanek in https://github.com/i-am-bee/agentstack/pull/1663
• fix(connectors): give user permissions to use connectors API by @pilartomas in https://github.com/i-am-bee/agentstack/pull/1677
• feat(server): improve conversation title generation prompt by @jezekra1 in https://github.com/i-am-bee/agentstack/pull/1675
• Add README for Agent Stack Client SDK by @jenna-winkler in https://github.com/i-am-bee/agentstack/pull/1671
• chore: stable branch releasing by @tomkis in https://github.com/i-am-bee/agentstack/pull/1665
• chore: version bump 0.4.3 by @tomkis in https://github.com/i-am-bee/agentstack/pull/1683

Full Changelog: https://github.com/i-am-bee/agentstack/compare/v0.4.2...v0.4.3