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CefSharp v86.0.241 Release Notes

• November 27, 2020, CEF 86.0.24+g85e79d4+chromium-86.0.4240.198 / Chromium 86.0.4240.198

  • 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.
  • Visual C++ 2015 or greater is required, see Notes below for more information

  🚑 ⚠️ Critical Security Update

  While every effort has been made to ensure the accuracy and completeness of the information, no guarantee is given nor responsibility taken for errors or omissions in the list of security exploits listed here. For the definitive source of information please refer to the Chrome Releases Blog for official announcements from Google. Only security exploits that are currently listed as in the wild at time this release was published are listed here. Review the official release announcements from Google Chrome for a full list of security exploits.

  🚀 See https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html and https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop.html

  There are no details available to the public yet

  • CVE-2020-16013
  • CVE-2020-16017
  • CVE-2020-16009

  Google is aware of reports that exploits for CVE-2020-16013, CVE-2020-16017 and CVE-2020-16009 exist in the wild. At time of writing these are the exploits Google is aware of reports

  🔒 See the following for full list of security fixes

  • 🚀 https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop.html
  • 🚀 https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html
  • 🚀 https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_9.html
  • 🚀 https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html

  🔄 Change Log

  • ⚡️ Includes updated Chromium version which includes security fixes for CVE-2020-16013
    and CVE-2020-16017

  👀 For a complete list of changes see the 86.0.x Milestone.

  🍱 ℹ️ Notes

  • 🚀 CefSharp requires a minimum of Visual C++ 2015. See #1983 for details. You can bin deploy the VC++ dependencies, read the FAQ for more details. VC++ 2017/2019 are backwards compatible. For a list of files included in the packages see https://github.com/cefsharp/CefSharp/wiki/Output-files-description-table-%28Redistribution%29
  • ⚡️ Chromium has removed support for Windows XP, Windows Vista, Windows Server 2003 and Windows Server 2008. See https://chrome.googleblog.com/2015/11/updates-to-chrome-platform-support.html
  • 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 won't play video/audio. See #1479 for more info. MP3 audio is supported, MP4 video is not.
  • Anyone new to CefSharp should read the General Usage Guide
  • 👀 This project uses GitLink for better debugging, you can step directly into much of the project source directly from Visual Studio see #1680 for details on how to enable GitLink

  🍱 ⚠️ Known Issues

  • 🏁 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
  • 👀 Save as PDF is not working when viewing PDF with Print Preview enabled see https://bitbucket.org/chromiumembedded/cef/issues/2867/save-as-pdf-is-not-working-in-pdf-viewer
  • 💻 WPF touch scroll aborted if browser navigates within document https://bitbucket.org/chromiumembedded/cef/issues/2936/osr-touch-scrolling-initiated-by-touch
  • 🏁 Fonts incorrectly loaded on Win7 see https://bitbucket.org/chromiumembedded/cef/issues/2858/fonts-not-loading-look-wrong-on-windows-7
  • 👀 window.focus() does not bring popup window to front see https://bitbucket.org/chromiumembedded/cef/issues/2931/windowfocus-does-not-bring-the-window-to
  • 👀 OnProtocolExecution Page goes blank after link click see https://bitbucket.org/chromiumembedded/cef/issues/2715/onprotocolexecution-page-goes-blank-after
  • 🏁 Crash on Win10 when computer wakes from sleep see https://bitbucket.org/chromiumembedded/cef/issues/2924/crash-on-libcef-when-windows-10-wakes-from
  • Background colour cannot be override for popups see https://bitbucket.org/chromiumembedded/cef/issues/2482/background_color-cannot-be-overridden-for
  • 👀 WPF Browser goes blank if used in combination with TabControl see #2779
  • 👀 CefSettings.IgnoreCertificateErrors no longer works, use the ignore-certificate-errors command line arg as a workaround or alternatively use OnCertificateError to selectively allow a certificate and/or display a dialog to your users see https://stackoverflow.com/a/35564187/852806 for an example.
  • 👀 See https://bitbucket.org/chromiumembedded/cef/issues?status=new&status=open for other known issues
  • 👀 See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

  🍱 ⚠️ Breaking Changes ⚠️

  • 👀 IPopupFeatures properties are now nullable see #3270 for details
  • 👀 DevToolsClient domain classes append Client suffic, see #3287

  ---

  • 👀 For Network Service API changes see #2743
  • 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
  • 0️⃣ Adobe Flash is disabled by default, it can be re-enabled if required #3048
    ⏱ (Flash support is scheduled to be removed from Chromium)
  • 👀 Migrating from ResourceHandler.GetMimeType to Cef.GetMimeType for mimeType mapping see #3041

Previous changes from v86.0.240-pre

• November 20, 2020, CEF 86.0.24+g85e79d4+chromium-86.0.4240.198 / Chromium 86.0.4240.198

  • 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.
  • Visual C++ 2015 or greater is required, see Notes below for more information

  🚑 ⚠️ Critical Security Update

  🚀 See https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html
  There are no details available to the public yet

  • CVE-2020-16013
  • CVE-2020-16017

  Google is aware of reports that exploits for CVE-2020-16013 and CVE-2020-16017 exist in the wild.

  🔄 Change Log

  • ⚡️ Includes updated Chromium version which includes security fixes for CVE-2020-16013
    and CVE-2020-16017

  👀 For a complete list of changes see the 86.0.x Milestone.

  🍱 ℹ️ Notes

  • 🚀 CefSharp requires a minimum of Visual C++ 2015. See #1983 for details. You can bin deploy the VC++ dependencies, read the FAQ for more details. VC++ 2017/2019 are backwards compatible. For a list of files included in the packages see https://github.com/cefsharp/CefSharp/wiki/Output-files-description-table-%28Redistribution%29
  • ⚡️ Chromium has removed support for Windows XP, Windows Vista, Windows Server 2003 and Windows Server 2008. See https://chrome.googleblog.com/2015/11/updates-to-chrome-platform-support.html
  • 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 won't play video/audio. See #1479 for more info. MP3 audio is supported, MP4 video is not.
  • Anyone new to CefSharp should read the General Usage Guide
  • 👀 This project uses GitLink for better debugging, you can step directly into much of the project source directly from Visual Studio see #1680 for details on how to enable GitLink

  🍱 ⚠️ Known Issues

  • 🏁 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
  • 👀 Save as PDF is not working when viewing PDF with Print Preview enabled see https://bitbucket.org/chromiumembedded/cef/issues/2867/save-as-pdf-is-not-working-in-pdf-viewer
  • 💻 WPF touch scroll aborted if browser navigates within document https://bitbucket.org/chromiumembedded/cef/issues/2936/osr-touch-scrolling-initiated-by-touch
  • 🏁 Fonts incorrectly loaded on Win7 see https://bitbucket.org/chromiumembedded/cef/issues/2858/fonts-not-loading-look-wrong-on-windows-7
  • 👀 window.focus() does not bring popup window to front see https://bitbucket.org/chromiumembedded/cef/issues/2931/windowfocus-does-not-bring-the-window-to
  • 👀 OnProtocolExecution Page goes blank after link click see https://bitbucket.org/chromiumembedded/cef/issues/2715/onprotocolexecution-page-goes-blank-after
  • 🏁 Crash on Win10 when computer wakes from sleep see https://bitbucket.org/chromiumembedded/cef/issues/2924/crash-on-libcef-when-windows-10-wakes-from
  • Background colour cannot be override for popups see https://bitbucket.org/chromiumembedded/cef/issues/2482/background_color-cannot-be-overridden-for
  • 👀 WPF Browser goes blank if used in combination with TabControl see #2779
  • 👀 CefSettings.IgnoreCertificateErrors no longer works, use the ignore-certificate-errors command line arg as a workaround or alternatively use OnCertificateError to selectively allow a certificate and/or display a dialog to your users see https://stackoverflow.com/a/35564187/852806 for an example.
  • 👀 See https://bitbucket.org/chromiumembedded/cef/issues?status=new&status=open for other known issues
  • 👀 See https://github.com/cefsharp/CefSharp/issues?q=is%3Aissue+is%3Aopen+label%3Aknown-issue for other known issues

  🍱 ⚠️ Breaking Changes ⚠️

  • 👀 IPopupFeatures properties are now nullable see #3270 for details
  • 👀 DevToolsClient domain classes append Client suffic, see #3287

  ---

  • 👀 For Network Service API changes see #2743
  • 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
  • 0️⃣ Adobe Flash is disabled by default, it can be re-enabled if required #3048
    ⏱ (Flash support is scheduled to be removed from Chromium)
  • 👀 Migrating from ResourceHandler.GetMimeType to Cef.GetMimeType for mimeType mapping see #3041

• All Versions
• Previous v86.0.240-pre