ceos/fastmcp
1
0
Fork 0
mirror of https://github.com/PrefectHQ/fastmcp.git synced 2026-08-28 10:18:08 +02:00
Code Issues Projects Releases Packages Wiki Activity

docs: prepare FastMCP 4 beta 5 (#4934)

Browse source 
Claude-Session: https://claude.ai/code/session_01DrQJXPeMepQgJay5xF91yE

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
nate nowack 2026-08-27 21:57:26 -05:00 • committed by GitHub
commit 89a7d7a96a
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 38 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

24
docs/changelog.mdx
View file

@ -5,6 +5,30 @@ rss: true
tag: NEW
---
<Update label="v4.0.0b5" description="2026-08-28">
**[v4.0.0b5: Group Effourt](https://github.com/PrefectHQ/fastmcp/releases/tag/v4.0.0b5)**
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 — and aligns middleware response limits with output schemas.
### Enhancements ✨
* Remove obsolete Docket memory-server reset fixtures by [@TyceHerrman](https://github.com/TyceHerrman) in [#4912](https://github.com/PrefectHQ/fastmcp/pull/4912)
* add independent client groups by [@zzstoatzz](https://github.com/zzstoatzz) in [#4904](https://github.com/PrefectHQ/fastmcp/pull/4904)
### Fixes 🐞
* fix(ci): satisfy latest ty control-flow checks by [@zzstoatzz](https://github.com/zzstoatzz) in [#4928](https://github.com/PrefectHQ/fastmcp/pull/4928)
* fix(middleware): align response limits with output schemas by [@zzstoatzz](https://github.com/zzstoatzz) in [#4931](https://github.com/PrefectHQ/fastmcp/pull/4931)
### Docs 📚
* docs: fix beta 4 changelog MDX by [@zzstoatzz](https://github.com/zzstoatzz) in [#4916](https://github.com/PrefectHQ/fastmcp/pull/4916)
## New Contributors
* @TyceHerrman made their first contribution in [#4912](https://github.com/PrefectHQ/fastmcp/pull/4912)
**Full Changelog**: [v4.0.0b4...v4.0.0b5](https://github.com/PrefectHQ/fastmcp/compare/v4.0.0b4...v4.0.0b5)
</Update>
<Update label="v4.0.0b4" description="2026-08-26">
**[v4.0.0b4: Calm Befour the Storm](https://github.com/PrefectHQ/fastmcp/releases/tag/v4.0.0b4)**

14
docs/updates.mdx
View file

@ -5,6 +5,20 @@ icon: "sparkles"
tag: NEW
---
<Update label="FastMCP 4.0.0b5" description="August 28, 2026" tags={["Releases"]}>
<Card
title="FastMCP v4.0.0b5: Group Effourt"
href="https://github.com/PrefectHQ/fastmcp/releases/tag/v4.0.0b5"
cta="Read the release notes"
>
FastMCP 4 beta 5 introduces client groups: coordinate several independent MCP server connections through one tool catalog, without a proxy in the middle.
🤝 **Client groups** — `ClientGroup` manages one client per server, each negotiating its own protocol era, with collision-checked `{server}_{tool}` namespacing, call routing, and per-tool provenance for adapters.
📏 **Consistent limits** — middleware response limits now align with declared output schemas.
</Card>
</Update>
<Update label="FastMCP 4.0.0b4" description="August 26, 2026" tags={["Releases"]}>
<Card
title="FastMCP v4.0.0b4: Calm Befour the Storm"