Sublime Text 4.0 Build 4109 Dev May 2026

Massive improvements to the internal API documentation for plugin developers. Performance & Indexing File Indexing: Faster scanning of large projects.

Maintains a separate environment for older plugins to ensure they don't break. Sublime Text 4.0 Build 4109 Dev

Themes and color schemes now support automatic switching based on system dark/light settings. Massive improvements to the internal API documentation for

Sidebars and file tabs feature improved spacing and readability. Enhanced Python API Sublime Text 4.0 Build 4109 Dev