BREAKING Claude Opus 4.6 Released (Feb 5)
New flagship model: 1M token context window (beta), improved reasoning with adaptive thinking, same pricing as Opus 4.5 ($5/$25 per Mtok). Already active in Claude Code on this machine. Office integrations: PowerPoint add-in, Excel with native pivot tables and conditional formatting.
BREAKING API: output_format moved to output_config.format
Structured outputs parameter location changed. Assistant message prefilling returns 400 error on Opus 4.6 -- migrate to structured outputs or system prompt instructions. Check any API code using output_format or prefilling immediately.
Source: Claude API Docs
SECURITY 94 Chromium Vulnerabilities in Cursor & Windsurf
OX Security discovered 94 unpatched Chromium vulnerabilities in Cursor and Windsurf IDEs affecting 1.8M developers. Forked Electron bases not receiving upstream security patches. If using either IDE, verify your version is patched.
Source: OX Security