DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
What changed: The CLI now intelligently enables or disables beta features based on your chosen backend provider Impact: First-party API and Vertex users get access to cutting-edge features while AWS Bedrock maintains compatibility by excluding features that aren't supported on that platform
