Ghostty 1.4.0 released with big memory cuts and full Kitty graphics
The gist
Ghostty 1.4.0 shipped with scrollback compression, 50–90% less memory use and 10 security fixes.
The release is the first non-Kitty terminal to fully implement Kitty's graphics protocol.
How it unfolded
- Oct 27, 2026Ghostty 1.4.0 is released, described as a major release with large performance and memory improvements and a 100% complete Kitty graphics implementation including animation and relative placements.
- Oct 27, 2026The release notes cover 7 months of work with changes from 172 contributors over 2,889 commits, plus full localization for the command palette and 4 new languages.
- Oct 27, 2026Mitchell Hashimoto announces the release on X, citing scrollback compression of ~90+% on average, 50 to 90% less memory use, macOS 27 support, a new OpenGL renderer on Linux, ghostty +ssh and fixes for 10 security advisories.