Claude Agent SDK 0.2.153
UpdateUnverifiedAdded Sep 24, 2026
New Features snapshot option for system prompts : Added a snapshot field to SystemPromptPreset and a new SystemPromptCustom typed dict. When snapshot is True, the session keeps the system prompt recorded on its first request, improving prompt-caching behavior across resumed sessions.
Topics: AI agents, LLMs, Developer tools
More Claude Agent SDK releases
Every Claude Agent SDK release| Date | Release | Type |
|---|---|---|
| Sep 17 | Claude Agent SDK 0.2.155unverified Update | Update |
| Sep 17 | Claude Agent SDK 0.2.154unverified Update | Update |
| Sep 18 | Claude Agent SDK 0.2.156unverified Update | Update |
| Sep 23 | Claude Agent SDK 0.2.159unverified Update | Update |
| Sep 23 | Claude Agent SDK 0.2.158unverified Update | Update |
| Sep 2 | Claude Agent SDK 0.2.152unverified Update | Update |
| Sep 1 | Claude Agent SDK 0.2.151unverified Update | Update |
| Sep 1 | Claude Agent SDK 0.2.150unverified Update | Update |
Also shipped on Sep 15, 2026
Anthropic in September 2026
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