Overview

• New Electron builds drop use of the cornerMask private API that malfunctioned after the Tahoe update and triggered heavy GPU load.
• Popular apps now on the fixed Electron include Discord, Slack, Figma, Visual Studio Code, Notion, Signal, Docker Desktop, GitHub Desktop, Obsidian, Pocket Casts, Claude, MongoDB Compass, and Super Productivity.
• Several widely used tools have not yet integrated the update, with 1Password, Bitwarden, Cursor, Dropbox, and Windsurf still on older Electron versions.
• Apple has not publicly detailed the specific macOS change that broke compatibility with Electron’s prior behavior.
• Users experiencing heat, fan noise, or lag are advised to update affected apps, quit unpatched versions, or temporarily use web alternatives, with status tracked via ShameElectron.