Zed v1.13.1 Stable Deprecates Fast Mode for Opus 4.6 and 4.7
Zed GitHub Releases·low signal
Zed's v1.13.1 stable release (published July 29, 2026) deprecates Fast Mode for Opus 4.6 and Opus 4.7 in PR #61341, alongside improved branch picker filtering, LSP log request durations, and a fix for excessive memory use when composing text with Fcitx5 on KDE Wayland. This mirrors Claude Code v2.1.219, which also removed Opus 4.7 from fast mode — two independent harnesses retiring fast mode on the older Opus generation in the same week. If you pinned Fast Mode to a 4.x Opus for cost reasons, that path is closing in both tools.