Release /
AltTab v11.4.3
Keep the expected window order when activating apps or switching tabs.
What changed in v11.4.3
Window ordering and switcher flicker are fixed in the reported scenarios.
Download v11.4.3 from GitHub Releases. Requires macOS 10.13 or later.
Fixed and improved
Activating apps or switching tabs no longer disrupts window order in the reported cases; switcher contents no longer flicker after opening.
Now worksSwitch 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.