v9.4.0

9.4.0 (2026-03-27)

Full Changelog: v9.3.0...v9.4.0

Features

• api: api update (43f868d)
• api: api update (136acd6)

Chores

• ci: skip lint on metadata-only changes (21b6a9d)
• internal: bump @modelcontextprotocol/sdk, @hono/node-server, and minimatch (cb296df)
• internal: fix MCP server TS errors that occur with required client options (78e6075)
• internal: make generated MCP servers compatible with Cloudflare worker environments (02fd3db)
• internal: support custom-instructions-path flag in MCP servers (54bc6f0)
• internal: support x-stainless-mcp-client-envs header in MCP servers (9b52734)
• internal: support x-stainless-mcp-client-permissions headers in MCP servers (262612e)
• internal: tweak CI branches (28d39dc)
• internal: update gitignore (7e3dec1)
• internal: update multipart form array serialization (4c22540)
• tests: bump steady to v0.19.4 (b17943d)
• tests: bump steady to v0.19.5 (724e159)
• tests: bump steady to v0.19.6 (d356e29)
• tests: bump steady to v0.19.7 (3729aa6)

Refactors

• tests: switch from prism to steady (3ce965c)