v4.0.0b5: Group Effourt

FastMCP 4 beta 5 introduces ClientGroup — one managed client per server, each negotiating its own protocol era independently, with collision-checked tool namespacing and call routing and no proxy in the middle. It also aligns middleware response limits with output schemas.

What's Changed

Enhancements ✨

• Remove obsolete Docket memory-server reset fixtures by @TyceHerrman in #4912
• add independent client groups by @zzstoatzz in #4904

Fixes 🐞

• fix(ci): satisfy latest ty control-flow checks by @zzstoatzz in #4928
• fix(middleware): align response limits with output schemas by @zzstoatzz in #4931

Docs 📚

• docs: fix beta 4 changelog MDX by @zzstoatzz in #4916
• docs: prepare FastMCP 4 beta 5 by @zzstoatzz in #4934

New Contributors

• @TyceHerrman made their first contribution in #4912

Full Changelog: v4.0.0b4...v4.0.0b5