Development
Pydantic AI v2.54.0: release record
The official Pydantic AI repository lists v2.54.0 as a stable release, published on 2026-10-03. Here is the source record and what it establishes.
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Development
The official Pydantic AI repository lists v2.54.0 as a stable release, published on 2026-10-03. Here is the source record and what it establishes.
Protocols
The official MCP Python SDK repository lists v2.3.0 as a stable release, published on 2026-10-02. Here is the source record and what it establishes.
Protocols
The official MCP TypeScript SDK repository lists v2.3.0 as a stable release, published on 2026-10-02. Here is the source record and what it establishes.
Protocols
The official AG-UI repository lists release/2026-10-02 as a stable release, published on 2026-10-02. Here is the source record and what it establishes.
Protocols
The official MCP TypeScript SDK repository lists @modelcontextprotocol/server-legacy@2.1.0 as a stable release, published on 2026-09-23. Here is the source record and what it establishes.
Protocols
The official MCP Python SDK repository lists v2.2.0 as a stable release, published on 2026-09-07. Here is the source record and what it establishes.
Discovery dates show the latest research check. Release entries use their source publication date.