Changelog

Claude changelog

This page shows the recent feature releases, price changes, improvements, and bug fixes recorded for the tool.

improvementFebruary 17, 2026Sonnet 4.6

Anthropic shipped Claude Sonnet 4.6, made it the default model for Free and Pro users in Claude, and kept pricing at $3 per million input tokens and $15 per million output tokens.

improvementFebruary 5, 2026Opus 4.6

Anthropic released Claude Opus 4.6 with stronger coding, agent, and enterprise workflow performance plus a 1M token context window in beta.

featureMay 27, 2025Web search

Web search rolled out globally across Claude plans, adding cited live web results inside chats.

featureMay 22, 2025Claude 4

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

featureFebruary 24, 2025Claude 3.7 Sonnet

Anthropic launched Claude 3.7 Sonnet as its first hybrid reasoning model and introduced Claude Code in research preview.

featureNovember 25, 2024Model Context Protocol

Anthropic introduced MCP and added local MCP server support in Claude Desktop, expanding Claude's integration story.