[pull] main from modelcontextprotocol:main - #333
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mcp 2.0.0 renamed McpError to MCPError and replaced the low-level Server decorators with constructor handlers. The three servers had no upper bound, so a fresh uvx install has resolved 2.0.0 since 2026-07-28 and failed to start: fetch and time raise ImportError on the McpError import, git raises AttributeError on server.list_tools(). The floor moves to 1.29.0, the last 1.x release. The previous floors (1.0.0 for git, 1.1.3 for fetch, 1.23.0 for time) resolved versions affected by GHSA-vj7q-gjh5-988w, GHSA-jpw9-pfvf-9f58, and GHSA-hvrp-rf83-w775. Porting to the v2 SDK is tracked separately. Closes #4560 Closes #4570 Closes #4580 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Users hitting the 2.0.0 startup failure land on the README first. Also makes the three packages qualify for the next release: the release workflow selects packages by .py/.ts/.md changes, so a dependency-only fix would merge without publishing. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
fix(python): require mcp>=1.29.0,<2 in fetch, git, and time
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