Anthropic added the `agent-memory-2026-07-22` beta header, changing memory listing behavior.

Memory list calls need header-specific cursor handling because cursors issued without the header are invalid with it.

This sits in memory listing; builders must drop ordering assumptions, constrain depth, and normalize path prefixes.

• Aug 24, 2026OpenAI Models page changed, but the provided diff is truncated.
• Aug 24, 2026Anthropic removed model-card guidance for Claude Fable 5, Mythos 5, and current model access.
• Aug 24, 2026OpenAI removed GPT-5.6 Sol, Terra, and Luna selection guidance from Models page

This is the world we build in. It moves this fast. We move with it.