1.6.0 (2026-01-23)
Features
Support OAuth 2.0 and OpenID Connect metadata discovery - @gocamille PR #584
Authorization server metadata discovery now supports both OAuth 2.0 Authorization Server Metadata (RFC 8414) and OpenID Connect Discovery 1.0, per MCP Auth Spec 2025-11-25.
Return API failures as Tool Execution Errors - @DaleSeo PR #589
API failures are now returned as Tool Execution Errors per MCP spec 2025-11-25.
Return input validation errors as Tool Execution Errors - @DaleSeo PR #569
Input validation errors are now returned as Tool Execution Errors per MCP spec 2025-11-25.
Fixes
Update binary compatibility on older Linux distributions - @gocamille PR #578
Systems without GLIBC 2.38 (e.g., Debian Bookworm) now correctly fall back to the statically-linked musl binary, preventing "GLIBC_2.38 not found" errors at runtime.