Release /
AltTab v10.9.0
Turn off background window capture.
What changed in v10.9.0
A setting controls whether AltTab captures windows in the background.
Download v10.9.0 from GitHub Releases. Requires macOS 10.12 or later.
Fixed and improved
Disable `captureWindowsInBackground` to stop capturing windows in the background.
ImprovedSwitch focus to individual Mac windows using a thumbnail switcher.
Read the evidence
Seeded by 
@iluxav with Codex, from the release's public sources. Each change links to its evidence.