v0.123.0
Added 3
- Add helpers for accessing the workspace ID in response headers
- Add support for files and memory stores in the API
- Add updates to skill, files, and user profiles in the API
Fixed 6
- Remove unsupported mid_conv_system content block from the API
- Compute platform headers without spawning a subprocess
- Export custom status errors from _exceptions.__all__
- Export ServiceUnavailableError and DeadlineExceededError from the package root
- Retry tool-result sends for at least the lease TTL in session-runner
- Run synchronous session tools in a worker thread
From Anthropic Python SDK
0.123.0 (2026-08-18)
Full Changelog: v0.122.0...v0.123.0
Features
- api: additions to files and memory stores (09ce187)
- api: updates to skill, files, and user profiles (c6cbffd)
- client: add helpers for accessing the workspace ID in response headers (f79882b)
Bug Fixes
- api: remove unsupported mid_conv_system content block (6f15b8d)
- client: compute platform headers without spawning a subprocess (baca9f4)
- client: export custom status errors from _exceptions.all (#459) (2950ec4)
- client: export ServiceUnavailableError and DeadlineExceededError from the package root (#468) (0dcd06d)
- session-runner: retry tool-result sends for at least the lease TTL (#453) (e1a4891)
- tools: run synchronous session tools in a worker thread (#399) (8f88c57)