release
Anthropic SDK v0.105.0
May 28, 2026
v0.105.0 (2026-05-28) adds API support for claude-opus-4-8, mid-conversation system blocks, and usage.output_tokens_details, and also introduces custom file size caps plus a rename from managed-agents private-sandbox-worker to self-hosted-sandbox-worker in the examples. The notable detail is the expanded API surface for newer Claude functionality and finer-grained token reporting, which should help developers build more flexible agent and sandbox workflows.
0.105.0 (2026-05-28) Full Changelog: v0.104.1...v0.105.0 Features api: Add support for claude-opus-4-8, mid-conversation system blocks, and usage.output_tokens_details ( f18b014 ) support custom file size caps ( #1825 ) ( 7e5f944 ) Chores examples: rename managed-agents private-sandbox-worker to self-hosted-sandbox-worker ( #1822 ) ( 750f956 ) Documentation replace literal newlines ( 8f7f6c0 )
Source: github.com