v3.51.0

3.51.0 (2026-08-14)

Features

• api: Add model constants for Daybreak and gpt-5.6-cyber (df00e97)
• api: add WebSocket stream IDs (#776) (0b6316e)
• api: add workload identity access token issued event (#766) (c61af30)
• api: deprecate Sora video APIs (#775) (602c5e4)
• api: Ultrafast tier, structured MCP and websocket errors, separate websocket events (#789) (f8b63fd)

Bug Fixes

• api: Add model constants for Daybreak and gpt-5.6-cyber (#763) (df00e97)
• api: clarify audio upload metadata requirements (#764) (e75e3aa)
• handle ignored errors in generated and runtime Go code (#778) (ba5f249)
• recover approved Go correctness analyzers after stacked merges (#782) (a98cf53)

Chores

• api: No public API change; update file header comments (#755) (d0a42cc)
• enforce Go lint suppression hygiene (#771) (7a3bb22)
• enforce gofmt across the repository (#770) (41b2f1f), closes #771
• remove Stainless attribution and infrastructure (#765) (9b3d395)

Documentation

• api: describe response stream event unions (#783) (4cc4021)
• define Go code quality policy (#767) (4119aa3)
• define Go ignored-error handling policy (#777) (1941f81)

Build System

• deps: bump github.com/aws/aws-sdk-go-v2/config in / (#759) (e8dfbe0)
• deps: bump the codeql group with 2 updates (#760) (9bbfebf)
• deps: enforce an eight-day dependency cooldown (#762) (744e64f)