Release Notes for v40.8.4

Fixes

Fixed an issue where nodeIntegrationInWorker overrides in setWindowOpenHandler were not honored for child windows sharing a renderer process with their opener. #50467 ^{(Also in 38, 39, 41)}
Fixed crash when handling JavaScript dialogs from windows opened with invalid or empty URLs. #50401 ^{(Also in 39, 41, 42)}
Fixed improper focus tracking in BaseWindow on MacOS. #50337 ^{(Also in 39, 41, 42)}
Fixed logic bug that rendered certain window types un-resizable on MAS builds. #50355 ^{(Also in 41, 42)}
Fixed utilityProcess exit event reporting incorrect exit codes on Windows when the exit code has the high bit. #50387 ^{(Also in 41, 42)}
Fixed window freeze when failing to enter/exit fullscreen on macOS. #50344 ^{(Also in 39, 41, 42)}

Added support for using a proxy during yarn install. #50352 ^{(Also in 39, 41, 42)}
Backported fix for 485935305. #50441
Backported fix for 489381399. #50449
Backported fixes for 484751092, 487117772. #50460