Claude changelog

Claude expanded its Microsoft 365 connector beyond search with write tools for email, calendar, mailbox settings, OneDrive, and SharePoint, while Teams remains read-only and admins must enable write access.

Claude restored access to Fable 5 and Mythos 5 after the June suspension, so Claude availability copy and changelog history should no longer stop at the suspended-access event.

Claude launched Sonnet 5 with stronger reasoning, tool use, coding, and knowledge-work capabilities than Sonnet 4.6.

Claude added Trusted Devices for remote control, Claude Tag delegation in Slack, and noted that Claude Fable 5 and Claude Mythos 5 access was suspended after the June launch.

Claude launched Fable 5 as a Mythos-class general-use model and updated Claude release notes for the latest model and workspace features.

Claude added Compliance API integrations so IT and security teams can govern Claude across the platform and product suite through security and compliance tools.

Anthropic added Claude Design after launching Claude Opus 4.7, alongside April Cowork and enterprise-control updates.

Anthropic made Sonnet 4.6 the default model for Free and Pro users, with improvements in coding, long-context reasoning, agent planning, and a 1M token beta context window.

Anthropic upgraded its flagship Opus model with stronger agentic coding, longer sustained work, better code review, and a 1M token beta context window.

Anthropic launched Claude Opus 4 and Sonnet 4, added extended thinking with tool use, and made Claude Code generally available.

Claude gained Research plus Google Workspace integration so it can search the web, Gmail, Calendar, and Docs with citations.