News tagged "api-changes"

Abstract diagram of memory store API path branching from a single beta header to a dedicated memory header track

Claude Agent Memory API Gets Its Own Beta Track: What the July 22 Header Migration Means for Operators

Anthropic's SDK v0.116.0 reveals that Memory Stores operations are moving from managed-agents-2026-04-01 to a dedicated agent-memory-2026-07-22 beta header — a breaking change every operator using cross-session memory must audit before July 22.

July 3, 2026via Anthropic SDK

Technical diagram showing Claude Sonnet 5 API parameter changes with 400 error paths and tokenizer delta annotations

anthropic

Claude Sonnet 5's Three Breaking API Changes: What Every Operator Must Audit Before Migrating

Claude Sonnet 5 ships three silent production killers: adaptive thinking on by default, temperature/top_p/top_k now returns 400, and a new tokenizer that inflates token counts ~30%. Here's the operator checklist.

July 1, 2026via Anthropic

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