v126.2.70

June 23, 2024, CEF 126.2.7+g300bb05+chromium-126.0.6478.115 / Chromium 126.0.6478.115

• ⚠️ Change from Alloy Bootstrap to Chrome bootstrap as default. The Alloy bootstrap is deprecated and will be removed shortly (upstream) (#4835). Those using the Chrome Runtime previously will need to set CefSharpSettings.RuntimeStyle = CefRuntimeStyle.Chrome;
• 🛑 Switching from Alloy Bootstrap to Chrome bootstrap appears to ignore cookies from the previous version as the encrpytion keys
  are likely different. You can switch back to the Alloy bootstrap if required via cefSettings.ChromeRuntime = false; #4835
• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 126.2.x Milestone. See also Release Notification.

⚠️ Breaking Changes

• #4835 Change to using Chrome bootstrap by default
• #4838 IDialogHandler.OnFileDialog add new extensions and descriptions arguments
• #4830 Chrome Runtime proxies don't work unless flag is set. (disable-chrome-login-prompt command line arg is now set by default)
• #4832 OffScreen - ChromeRuntime doesn't work with LoadURL

ℹ️ Notes

• WPF the browser stops redrawing when running on Intel Iris Xe Integrated GPU(11th Gen). Intel have released an updated driver, see https://www.intel.com/content/www/us/en/support/articles/000058136/graphics/graphics-for-11th-generation-intel-processors.html See dotnet/wpf#3817 for workaround if you are unable to install the updated driver.
• You can bin deploy the Visual C++ dependencies, read the FAQ for more details.
• For a list of files included in the packages see Output files description table (Redistribution) Wiki
• Starting in June 2019 Google will block logins from CEF based browsers to Google Services, this includes Gmail, Drive, Docs, see https://security.googleblog.com/2019/04/better-protection-against-man-in-middle.html?m=1 for further discussion see https://groups.google.com/a/chromium.org/d/msg/embedder-dev/STyM5ZNTHMM/POj1v_cqBgAJ
• Due to licensing issues default builds do not support proprietary codecs like H264/AAC, sites like Netflix/Twitter/Instagram/Facebook/Spotify/Apple Music won't play video/audio. See #1479 for more info. MP3 audio is supported, playing MP4 files are not supported.
• Anyone new to CefSharp should read the General Usage Guide
• This project uses Microsoft SourceLink for better debugging, you can step directly into much of the project source directly.

❌ Known Issues

• NTLM Authentication not working correctly
• CEF creates a Download directory in the User Director
• WinForms when running on Windows 10 Anniversary pressing certain key combinations freezes the browser see #1822 The issue has been reported upstream, there are workarounds listed in #1822
• WPF touch scroll aborted if browser navigates within document
• window.focus() does not bring popup window to front
• OnProtocolExecution Page goes blank after link click
• Crash on Win10 when computer wakes from sleep
• Cef.AddCrossOriginWhitelistEntry doesn't work correctly
• See https://github.com/chromiumembedded/cef/issues for other known issues
• See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

---

• All paths (CachePath, BrowserSubProcessPath, etc) must be absolute paths, if using a non-absolute path an exception will be throw. See #3102 for details.
• When using a RequestContext you must ensure that RequestContextSettings.CachePath is equal to or a child of CefSettings.RootCachePath See #3111 (comment) for details

v125.0.210

June 09, 2024, CEF 125.0.21+gc8b1a8c+chromium-125.0.6422.142 / Chromium 125.0.6422.142

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• For those experiencing 1Error while fulfilling of JS: Request BrowserId : 1 not found it's likely the browser is already closed` see #4621 for workaround
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 125.0.x Milestone. See also Release Notification.

v124.3.80

May 17, 2023, CEF 124.3.8+gc712fb4+chromium-124.0.6367.207 / Chromium 124.0.6367.207

For a list of CefSharp specific changes see the 124.3.x Milestone. See also Release Notification and v124.3.20 Release notes.

✅ Change Log

• Upgrade to Chromium 124.0.6367.201
• Upgrade to Chromium 124.0.6367.207

This update includes a critical priority security update. Google is aware of reports that an exploit for CVE-2024-4671 and CVE-2024-4761

v124.3.50

May 08, 2023, CEF 124.3.5+gff7dcd8+chromium-124.0.6367.119 / Chromium 124.0.6367.119

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible.

✅ Change Log

• Includes an upstream fix for chromiumembedded/cef#3694

For a list of CefSharp specific changes see the 124.3.x Milestone. See also Release Notification and v124.3.20 Release notes.

v124.3.20

May 05, 2024, CEF 124.3.2+gb6e819b+chromium-124.0.6367.119 / Chromium 124.0.6367.119

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• For those experiencing 1Error while fulfilling of JS: Request BrowserId : 1 not found it's likely the browser is already closed` see #4621 for workaround
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 124.3.x Milestone. See also Release Notification.

⚠️ Breaking Changes

There are a number of CefSharp specific breaking API changes.

ℹ️ Notes

• WPF the browser stops redrawing when running on Intel Iris Xe Integrated GPU(11th Gen). Intel have released an updated driver, see https://www.intel.com/content/www/us/en/support/articles/000058136/graphics/graphics-for-11th-generation-intel-processors.html See dotnet/wpf#3817 for workaround if you are unable to install the updated driver.
• Widevine CDM is now automatically downloaded at runtime see chromiumembedded/cef#3149
• You can bin deploy the Visual C++ dependencies, read the FAQ for more details.
• For a list of files included in the packages see Output files description table (Redistribution) Wiki
• Starting in June 2019 Google will block logins from CEF based browsers to Google Services, this includes Gmail, Drive, Docs, see https://security.googleblog.com/2019/04/better-protection-against-man-in-middle.html?m=1 for further discussion see https://groups.google.com/a/chromium.org/d/msg/embedder-dev/STyM5ZNTHMM/POj1v_cqBgAJ
• Due to licensing issues default builds do not support proprietary codecs like H264/AAC, sites like Netflix/Twitter/Instagram/Facebook/Spotify/Apple Music won't play video/audio. See #1479 for more info. MP3 audio is supported, playing MP4 files are not supported.
• Anyone new to CefSharp should read the General Usage Guide
• This project uses Microsoft SourceLink for better debugging, you can step directly into much of the project source directly.

❌ Known Issues

• NTLM Authentication not working correctly
• CEF creates a Download directory in the User Director
• WinForms when running on Windows 10 Anniversary pressing certain key combinations freezes the browser see #1822 The issue has been reported upstream, there are workarounds listed in #1822
• WPF touch scroll aborted if browser navigates within document
• window.focus() does not bring popup window to front
• OnProtocolExecution Page goes blank after link click
• Crash on Win10 when computer wakes from sleep
• Cef.AddCrossOriginWhitelistEntry doesn't work correctly
• See https://github.com/chromiumembedded/cef/issues for other known issues
• See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

---

• All paths (CachePath, BrowserSubProcessPath, etc) must be absolute paths, if using a non-absolute path an exception will be throw. See #3102 for details.
• When using a RequestContext you must ensure that RequestContextSettings.CachePath is equal to or a child of CefSettings.RootCachePath See #3111 (comment) for details
• CEF now supports the Chromium Network Service: If you are upgrading from a version prior to 75.1.x please make sure you read #2743.

v123.0.60

March 24, 2024, CEF 123.0.6+ge4984ab+chromium-123.0.6312.46 / Chromium 123.0.6312.46

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• For those experiencing 1Error while fulfilling of JS: Request BrowserId : 1 not found it's likely the browser is already closed` see #4621 for workaround
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 123.0.x Milestone. See also Release Notification.

⚠️ Breaking Changes

There are no CefSharp specific breaking changes in this release.

ℹ️ Notes

• WPF the browser stops redrawing when running on Intel Iris Xe Integrated GPU(11th Gen). Intel have released an updated driver, see https://www.intel.com/content/www/us/en/support/articles/000058136/graphics/graphics-for-11th-generation-intel-processors.html See dotnet/wpf#3817 for workaround if you are unable to install the updated driver.
• Widevine CDM is now automatically downloaded at runtime see chromiumembedded/cef#3149
• You can bin deploy the Visual C++ dependencies, read the FAQ for more details.
• For a list of files included in the packages see Output files description table (Redistribution) Wiki
• Starting in June 2019 Google will block logins from CEF based browsers to Google Services, this includes Gmail, Drive, Docs, see https://security.googleblog.com/2019/04/better-protection-against-man-in-middle.html?m=1 for further discussion see https://groups.google.com/a/chromium.org/d/msg/embedder-dev/STyM5ZNTHMM/POj1v_cqBgAJ
• Due to licensing issues default builds do not support proprietary codecs like H264/AAC, sites like Netflix/Twitter/Instagram/Facebook/Spotify/Apple Music won't play video/audio. See #1479 for more info. MP3 audio is supported, playing MP4 files are not supported.
• Anyone new to CefSharp should read the General Usage Guide
• This project uses Microsoft SourceLink for better debugging, you can step directly into much of the project source directly.

❌ Known Issues

• NTLM Authentication not working correctly
• CEF creates a Download directory in the User Director
• WinForms when running on Windows 10 Anniversary pressing certain key combinations freezes the browser see #1822 The issue has been reported upstream, there are workarounds listed in #1822
• WPF touch scroll aborted if browser navigates within document
• window.focus() does not bring popup window to front
• OnProtocolExecution Page goes blank after link click
• Crash on Win10 when computer wakes from sleep
• Cef.AddCrossOriginWhitelistEntry doesn't work correctly
• See https://github.com/chromiumembedded/cef/issues for other known issues
• See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

---

• All paths (CachePath, BrowserSubProcessPath, etc) must be absolute paths, if using a non-absolute path an exception will be throw. See #3102 for details.
• When using a RequestContext you must ensure that RequestContextSettings.CachePath is equal to or a child of CefSettings.RootCachePath See #3111 (comment) for details
• CEF now supports the Chromium Network Service: If you are upgrading from a version prior to 75.1.x please make sure you read #2743.

v122.1.120

March 13, 2024, CEF 122.1.12+g6e69d20+chromium-122.0.6261.112 / Chromium 122.0.6261.112

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 122.1.x Milestone. See also Release Notification.

⚠️ Breaking Changes

• #4737 Frame identifiers changed from int64 to string

ℹ️ Notes

• WPF the browser stops redrawing when running on Intel Iris Xe Integrated GPU(11th Gen). Intel have released an updated driver, see https://www.intel.com/content/www/us/en/support/articles/000058136/graphics/graphics-for-11th-generation-intel-processors.html See dotnet/wpf#3817 for workaround if you are unable to install the updated driver.
• Widevine CDM is now automatically downloaded at runtime see chromiumembedded/cef#3149
• You can bin deploy the Visual C++ dependencies, read the FAQ for more details.
• For a list of files included in the packages see Output files description table (Redistribution) Wiki
• Starting in June 2019 Google will block logins from CEF based browsers to Google Services, this includes Gmail, Drive, Docs, see https://security.googleblog.com/2019/04/better-protection-against-man-in-middle.html?m=1 for further discussion see https://groups.google.com/a/chromium.org/d/msg/embedder-dev/STyM5ZNTHMM/POj1v_cqBgAJ
• Due to licensing issues default builds do not support proprietary codecs like H264/AAC, sites like Netflix/Twitter/Instagram/Facebook/Spotify/Apple Music won't play video/audio. See #1479 for more info. MP3 audio is supported, playing MP4 files are not supported.
• Anyone new to CefSharp should read the General Usage Guide
• This project uses Microsoft SourceLink for better debugging, you can step directly into much of the project source directly.

❌ Known Issues

• NTLM Authentication not working correctly
• CEF creates a Download directory in the User Director
• WinForms when running on Windows 10 Anniversary pressing certain key combinations freezes the browser see #1822 The issue has been reported upstream, there are workarounds listed in #1822
• WPF touch scroll aborted if browser navigates within document
• window.focus() does not bring popup window to front
• OnProtocolExecution Page goes blank after link click
• Crash on Win10 when computer wakes from sleep
• Cef.AddCrossOriginWhitelistEntry doesn't work correctly
• See https://github.com/chromiumembedded/cef/issues for other known issues
• See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

---

• All paths (CachePath, BrowserSubProcessPath, etc) must be absolute paths, if using a non-absolute path an exception will be throw. See #3102 for details.
• When using a RequestContext you must ensure that RequestContextSettings.CachePath is equal to or a child of CefSettings.RootCachePath See #3111 (comment) for details
• CEF now supports the Chromium Network Service: If you are upgrading from a version prior to 75.1.x please make sure you read #2743.

v121.3.130

Feburary 24, 2023, CEF 121.3.13+g5c4a81b+chromium-121.0.6167.184 / Chromium 121.0.6167.184

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 121.3.x Milestone. See also Release Notification and v121.3.70 Release notes.

v121.3.70

Feburary 10, 2023, CEF 121.3.7+g82c7c57+chromium-121.0.6167.160 / Chromium 121.0.6167.160

• CEF now supports the Chromium process singleton, this brings with it changes to how CachePath/RootCachePath are accessed from multiple processes. See #4668 for more details
• ⚠️ Microsoft Visual C++ 2019 Redistributable is required. A minimum of VC++ 2019 is required, higher versions are backwards compatible. For those upgrading from a previous version which only required VC++ 2015 minimum see #3636 for some guidance.

✅ Change Log

For a list of CefSharp specific changes see the 121.3.x Milestone. See also Release Notification.

This update includes a highpriority security update.

⚠️ Breaking Changes

• #4668 Support process singleton with IBrowserProcessHandler.OnAlreadyRunningAppRelaunch callback
• #4704 Migrate to chromiumembeddedframework.runtime Nuget packages

ℹ️ Notes

• WPF the browser stops redrawing when running on Intel Iris Xe Integrated GPU(11th Gen). Intel have released an updated driver, see https://www.intel.com/content/www/us/en/support/articles/000058136/graphics/graphics-for-11th-generation-intel-processors.html See dotnet/wpf#3817 for workaround if you are unable to install the updated driver.
• Widevine CDM is now automatically downloaded at runtime see chromiumembedded/cef#3149
• You can bin deploy the Visual C++ dependencies, read the FAQ for more details.
• For a list of files included in the packages see Output files description table (Redistribution) Wiki
• Starting in June 2019 Google will block logins from CEF based browsers to Google Services, this includes Gmail, Drive, Docs, see https://security.googleblog.com/2019/04/better-protection-against-man-in-middle.html?m=1 for further discussion see https://groups.google.com/a/chromium.org/d/msg/embedder-dev/STyM5ZNTHMM/POj1v_cqBgAJ
• Due to licensing issues default builds do not support proprietary codecs like H264/AAC, sites like Netflix/Twitter/Instagram/Facebook/Spotify/Apple Music won't play video/audio. See #1479 for more info. MP3 audio is supported, playing MP4 files are not supported.
• Anyone new to CefSharp should read the General Usage Guide
• This project uses Microsoft SourceLink for better debugging, you can step directly into much of the project source directly.

❌ Known Issues

• NTLM Authentication not working correctly
• CEF creates a Download directory in the User Director
• WinForms when running on Windows 10 Anniversary pressing certain key combinations freezes the browser see #1822 The issue has been reported upstream, there are workarounds listed in #1822
• WPF touch scroll aborted if browser navigates within document
• window.focus() does not bring popup window to front
• OnProtocolExecution Page goes blank after link click
• Crash on Win10 when computer wakes from sleep
• Cef.AddCrossOriginWhitelistEntry doesn't work correctly
• See https://github.com/chromiumembedded/cef/issues for other known issues
• See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

---

• All paths (CachePath, BrowserSubProcessPath, etc) must be absolute paths, if using a non-absolute path an exception will be throw. See #3102 for details.
• When using a RequestContext you must ensure that RequestContextSettings.CachePath is equal to or a child of CefSettings.RootCachePath See #3111 (comment) for details
• CEF now supports the Chromium Network Service: If you are upgrading from a version prior to 75.1.x please make sure you read #2743.

v120.2.70

January 20, 2023, CEF 120.2.7+g4bc6a59+chromium-120.0.6099.234 / Chromium 120.0.6099.234

✅ Change Log

For a list of CefSharp specific changes see the 120.1.x Milestone. See also Release Notification, v120.1.80 Release notes, v120.1.110 Release notes and v120.2.50 Release notes.

• Upgrade to Chromium 120.0.6099.234

This update includes a critical priority security update. Google is aware of reports that an exploit for CVE-2024-0519 exists in the wild.