Anthropic introduced /ultrareview in research preview, a Claude Code command that deploys a cloud-based fleet of agents to hunt for bugs before critical merges such as auth changes or data migrations. Pro and Max users receive 3 free reviews through May 5, with findings delivered directly to the CLI or Desktop.
Anthropic shipped a new version of Claude Code, prompting users to run `claude update` to access the latest changes. Full details are available in the official documentation.
Session store adapters are now live in the Agent SDK, with example implementations published in TypeScript and Python for S3, Redis, and Postgres. The feature allows transcripts to be mirrored to a user's own backend so sessions created on one host can be resumed on another.
Anthropic's Claude Dev team released a new blog post covering when agents should use direct APIs, CLIs, or MCP, along with patterns for building MCP servers, context-efficient clients, and pairing MCP with agent skills.
Anthropic engineer Noah Zweben outlines key reasons to use a session store, including multi-host deployments where serverless functions and autoscaled workers can't share a filesystem, and durability concerns with ephemeral local containers.
