Releases, movers, new tools, and trending activity — sourced from GitHub signals.
### Fixed - Fix `Resource::Contents#to_h` to use correct property names per MCP spec (#235) - Return JSON-RPC protocol errors for unknown tool calls (#231) - Fix `logging/setLevel` to return empty hash per MCP specification (#230)
First patch after 3.0 — mostly smoothing out rough edges discovered in the wild. The big ones: middleware state that wasn't surviving the trip to tool handlers now does, `Tool.from_tool()` accepts callables again, OpenAPI schemas with circular references no longer crash discovery
## 3D Cluster Topology Viewer <img width="823" height="366" alt="Screenshot 2026-02-20 at 22 26 21" src="https://github.com/user-attachments/assets/5d26057d-feb1-4a72-ace2-d2f4ae2ef214" /> New interactive 3D Kubernetes cluster topology UI (`k8s-3d-topology`) powered by Three.j
FastMCP 3.0 is stable. Two betas, two release candidates, 21 new contributors, and more than 100,000 pre-release installs later — the architecture held up, the upgrade path was smooth, and we're shipping it. The surface API is largely unchanged — `@mcp.tool()` still works exactl
_**This release is a patch release for v1.3.0.**_ It contains a cherry-pick for a security issue reported in #805, which takes advantage of the default behavior of Go's standard library JSON decoder that allows case-insensitive matches to struct field names (or "json" tags). The
## What's Changed * feat: Filter exception suppport by @gotenxds in https://github.com/rekog-labs/MCP-Nest/pull/178 * Add @Guards to tool definitions, to control visibility and access using NestJS Guards. by @mm-zacharydavison in https://github.com/rekog-labs/MCP-Nest/pull/150 *
* Update stubs to use attribute syntax by @pushpak1300 in https://github.com/laravel/mcp/pull/157
## What's Changed * 1.10.x backport fixes #01 by @mkouba in https://github.com/quarkiverse/quarkus-mcp-server/pull/611 * Trigger 1.10.1 by @mkouba in https://github.com/quarkiverse/quarkus-mcp-server/pull/613 **Full Changelog**: https://github.com/quarkiverse/quarkus-mcp-server
> [!IMPORTANT] > ### 🔧 World Tools Category Fixes & Security Hardening > This release includes critical bug fixes, security hardening, and UE 5.7 compatibility improvements across all world-building tools (landscape, foliage, geometry, volumes, navigation). ### 🛡️ Security <d
# [3.33.0](https://github.com/punkpeye/fastmcp/compare/v3.32.0...v3.33.0) (2026-02-16) ### Bug Fixes * **edge:** use LATEST_PROTOCOL_VERSION and fix Zod 4 schema conversion ([#242](https://github.com/punkpeye/fastmcp/issues/242)) ([2d37c5e](https://github.com/punkpeye/fastmcp/
## What's Changed * feat: defer tool loading to enable Anthropic's "Tool Search" pattern by @wolfeidau in https://github.com/mark3labs/mcp-go/pull/644 * fix: return an error if the responseWriter does not support Flush by @JoelPfaffDD in https://github.com/mark3labs/mcp-go/pull/6
### Quick follow-up bug fix - Revert `--no-sandbox` → `--no-chromium-sandbox` rename. The CLI flag name is restored to `--no-sandbox`.
### Added - `logging` support (#103) - Protocol version negotiation to server initialization (#223) - Tool arguments to instrumentation data (#218) - Client info to instrumentation callback (#221) - `resource_templates` to `MCP::Client` (#225) ### Changed - Extract `MCP::Annot
### Extension - **Our Google Chrome extension is now available in the Chrome Web Store**: [Playwright MCP Bridge](https://chromewebstore.google.com/detail/playwright-mcp-bridge/mmlmfjhmonkocbjadbfplnigmagldckm) ### Bug Fixes - Rename `--[no-]sandbox` to `--[no-]chromium-sa
**February 2026** --- ## Major Features ### Federated Registry Connect multiple MCP Gateway registries together with bi-directional synchronization: - **Peer Registry Management**: Add, configure, and manage peer registries through the UI or CLI - **Automatic Sync**: Server
## What's Changed * http: cache InitialRequest for dummy init to reduce allocations by @mkouba in https://github.com/quarkiverse/quarkus-mcp-server/pull/578 * core: introduce FilterContext by @mkouba in https://github.com/quarkiverse/quarkus-mcp-server/pull/584 * core: relax the
## What's Changed ### 🐛 Bug Fixes * fix(serve): ensure a single event loop for python 3.11 by @willkill07 in https://github.com/NVIDIA/NeMo-Agent-Toolkit/pull/1558 ### 📚 Documentation * Document new `nat serve` CLI flags by @dagardner-nv in https://github.com/NVIDIA/NeMo-Agent
_**This release is equivalent to v1.3.0-pre.1. Thank you to those who tested the pre-release.**_ This release includes several enhancements and bugfixes. Worth mentioning is the addition of schema caching, which significantly improves the performance in some stateless server dep
# [3.32.0](https://github.com/punkpeye/fastmcp/compare/v3.31.0...v3.32.0) (2026-02-06) ### Bug Fixes * **oauth:** coerce expires_in to number in token response parsing ([#237](https://github.com/punkpeye/fastmcp/issues/237)) ([23d0d8c](https://github.com/punkpeye/fastmcp/commi
## What's Changed * http: cache InitialRequest for dummy init to reduce allocations by @mkouba in https://github.com/quarkiverse/quarkus-mcp-server/pull/579 * core: introduce FilterContext by @mkouba in https://github.com/quarkiverse/quarkus-mcp-server/pull/585 * core: relax the