release
Anthropic SDK v0.120.2
July 29, 2026
v0.120.2, released 2026-07-28, fixes MCP support to work with MCP SDK v2 alongside v1 in addition to the existing v1 integration. This matters because it preserves compatibility across MCP SDK versions, reducing breakage for users upgrading to v2.
0.120.2 (2026-07-28) Full Changelog: v0.120.1...v0.120.2 Bug Fixes mcp: support mcp sdk v2 alongside v1 ( #300 ) ( 177f88c )
Source: github.com