Agent Skills and the Skills API are out of beta on the Claude API
Tech · Releases · Wed, August 19, 2026
Agent Skills and /v1/skills no longer require the skills-2025-10-02 beta header, including Messages requests that load Skills via the container parameter. Requests still sending the header continue to work unchanged.
Every year
Also on Aug 19, 2026
| Date | Event | When |
|---|---|---|
| Wed, Aug 19, 2026 | 2026 Little League World Series | 37 days ago |
| Wed, Aug 19, 2026 | Bill Clinton, born 1946 (80 years) | 37 days ago |
Source, method and history
- Source
- anthropic
- How we know
- From the Releases API (releases.fru.dev), which reads each vendor's changelog.
- Who
- anthropic
- Recurs
- one-off
- More on fru.dev
- releases.fru.dev
- Feed
- Subscribe to Releases
- Changes
- 2026-09-25: added to 2026-08-19