Claude Opus 4.5 launch: Released the most powerful frontier model to date.
Claude for Excel beta release: Now available in beta to all Max, Team, and Enterprise users with new capabilities including pivot tables, charts, file uploads, keyboard shortcut (ctrl+option+c) to open Claude app, and improvements to performance, speed, context management, and user experience.
Context window compaction: Changed context window functionality to enable infinite-length conversations and reduce length limit errors by summarizing earlier messages when chats approach the context limit.
Claude in Chrome updates: Now available in beta to all Max plan subscribers with scheduled tasks for recurring browser tasks, ability to approve a plan and let Claude execute independently, and model selection between Haiku 4.5, Sonnet 4.5, and Opus 4.5.
Fetched April 10, 2026