Release Notes for v14.2.1

Features

• Added warning when ipcRenderer.sendSync() is called with no listeners for channel on ipcMain. #31433 <span style="font-size:small;">(Also in 13, 15, 16)</span>

  Fixes

• Fixed <webview> background transparency regression. #31727

• Fixed a crash when a BrowserWindow is closed subsequent to its webContents being destroyed. #31645 <span style="font-size:small;">(Also in 15, 16)</span>

• Fixed a tracing agent-related crash when initializing Node.js in service workers. #31475 <span style="font-size:small;">(Also in 15, 16)</span>

• Fixed an issue where Content-Disposition filenames would be incorrectly truncated at the first comma for a filename attachment which contained one. #31692 <span style="font-size:small;">(Also in 13, 15, 16)</span>

• Fixed an issue where MediaMetadata did not work properly. #31533 <span style="font-size:small;">(Also in 13, 15, 16)</span>

• Fixed an issue which caused print settings to not work properly when printing silently. #31617 <span style="font-size:small;">(Also in 13, 15, 16)</span>

• Fixed black window when screen capturing a content-protected BrowserWindow on Windows 10. #31551 <span style="font-size:small;">(Also in 13, 15, 16)</span>

• Fixed event with invalid timestamp in trace log. #31421 <span style="font-size:small;">(Also in 15, 16)</span>

  Other Changes

• Backported fix for 1233067. #31524

• Backported fix for CVE-2021-37981. #31498

• Backported fix for CVE-2021-37984. #31494

• Backported fix for CVE-2021-37985. #31517

• Backported fix for CVE-2021-37987. #31540

• Backported fix for CVE-2021-37992. #31520

• Backported fix for CVE-2021-37996. #31544

• Backported fix for CVE-2021-37998. #31677

• Backported fix for CVE-2021-38001. #31672

• Backported fix for CVE-2021-38002. #31670

• Backported fix for CVE-2021-38003. #31664

• Backported fix for chromium:1245870. #31502

• Backported fix for chromium:1252858. #31681