Preparing for 2.28.0

WebKitGTK and WPE 2.28.0 will be the next release in the stable series (following 2.26.x). We should merge not overly intrusive patches that improve stability or performance, fix build issues, etc. We branched at r 255667 (04/02/2020).

When filing bugs (​http://bugs.webkit.org) against stable release, please prefix them with "[GTK] [Stable]" (or "[WPE] [Stable]") to ensure they are addressed with high priority. Also, running a debug build and including stack traces is highly encouraged. (Don't use "[Stable]" if the bug also applies to master, though.)

To get the stable branch code, simply check out ​http://svn.webkit.org/repository/webkit/releases/WebKitGTK/webkit-2.28 Over the next few weeks we'll be merging important fixes into the branch, so be sure to stay up to date. Thanks for your help!

Proposed merges for 2.28.3

• ​https://trac.webkit.org/changeset/259037 Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s) in IPC::Connection::sendOutgoingMessage
• ​https://trac.webkit.org/changeset/260176 [GTK] MiniBrowser opens new windows too small causing failures on some WPT test
• ​https://trac.webkit.org/changeset/260750 [GTK] [2.28.0] The Yelp build crashes if DISPLAY is not set
• ​https://trac.webkit.org/changeset/261326 REGRESSION(r251875): Crash in JSC::StructureIDTable::get on ppc64le: gcSafeMemcpy broken on JSVALUE64 platforms other than x86_64 and aarch64
• ​https://trac.webkit.org/changeset/259879 [WTF] DataMutex: Add runUnlocked()
• ​https://trac.webkit.org/changeset/260755 [GStreamer] Rework WebKitWebSrc threading
• ​https://trac.webkit.org/changeset/260886 [GStreamer] Switch to audiointerleave
• ​https://trac.webkit.org/changeset/260892 PlatformMediaResourceLoader should be destroyed on the main thread
• ​https://trac.webkit.org/changeset/261165 [GStreamer] Video loops when ran in rr record --chaos
• ​https://trac.webkit.org/changeset/261550 [GStreamer] Audio messages in web.whatsapp.com only play once
• ​https://trac.webkit.org/changeset/261680 [GStreamer] Can't replay blob videos in web.whatsapp.com

Proposed merges for 2.28.2

• ​https://trac.webkit.org/changeset/260179 Unreviewed, set CeilingOnPageSize for MIPS64
• ​https://trac.webkit.org/changeset/260244 [GTK] UI process crash when entering compositing mode when WPE_RENDERER is enabled
• ​https://trac.webkit.org/changeset/260252 [GTK][X11] REGRESSION(r259944): Wrong position of select popup menu in X11
• ​https://trac.webkit.org/changeset/260506 [GStreamer][MSE] Youtube 'live stream'/H264 URLs fail to play, VP8/9 URLs play OK
• ​https://trac.webkit.org/changeset/260567 [GTK] excessive wakeups/polling due to gdk_frame_clock_begin_updating
• ​https://trac.webkit.org/changeset/260570 [GTK] Crash in cairo_surface_mark_dirty_rectangle() in accelerated compositing mode under X11

Proposed merges for 2.28.1

• ​https://trac.webkit.org/changeset/259382 [WPE][GTK] Public API should not allow trying to register a special URI scheme
• ​https://trac.webkit.org/changeset/258197 [GStreamer][GL] External OES textures rendering support
• ​https://trac.webkit.org/changeset/258199 Unreviewed, !USE(GSTREAMER_GL) build fix after r258197
• ​https://trac.webkit.org/changeset/258328 [GTK] Use #!/usr/bin/python3 shebang to run generate-gtkdoc
  • ​https://trac.webkit.org/changeset/258808 [GTK] Use ${PYTHON_EXECUTABLE} to run generate-gtkdoc
• ​https://trac.webkit.org/changeset/258532 A change event gets dispatched when textarea gets changed without focus
• ​https://trac.webkit.org/changeset/258542 [GStreamer][MSE] Playback rate update support
• ​https://trac.webkit.org/changeset/258662 Fix ReplaceSelectionCommand::InsertedNodes::willRemoveNodePreservingChildren crash
• ​https://trac.webkit.org/changeset/258710 [JSC][BigEndians] Several JSC stress tests failing
• ​https://trac.webkit.org/changeset/258717 sanitizeStackForVMImpl writes below stack pointer, triggers huge warning spam from valgrind
  • ​https://trac.webkit.org/changeset/258719 Unreviewed, build fix after r258717
• ​https://trac.webkit.org/changeset/258755 Fix build with gstreamer 1.12
• ​https://trac.webkit.org/changeset/258857 REGRESSION(r249808): [GTK] Crash in JSC Config::permanentlyFreeze() on architecture ppc64el
• ​https://trac.webkit.org/changeset/258923 [GTK] Crash in WebKit::LayerTreeHost::LayerTreeHost with bubblewrap sandbox enabled
  • ​https://trac.webkit.org/changeset/259044 [GTK] Crash in WebKit::LayerTreeHost::LayerTreeHost with bubblewrap sandbox enabled
• ​https://trac.webkit.org/changeset/259110 Update Chrome and Firefox versions in user agent quirks
• ​https://trac.webkit.org/changeset/259113 [WPE] Unnecessary gl synchronization when using an OpenMAX video decoder and GLES2
• ​https://trac.webkit.org/changeset/259380 [GTK] [2.28.0] The Yelp build crashes if DISPLAY is not set

Proposed merges for 2.27.92

• ​https://trac.webkit.org/changeset/257695 undefined reference to JSC::ExecutableBase::hasJITCodeForCall() const
• ​https://trac.webkit.org/changeset/257700 [GTK] Fix the build when Wayland target is disabled
• ​https://trac.webkit.org/changeset/257292 PS-2019-006: [GTK] WebKit - AXObjectCache - m_deferredFocusedNodeChange - UaF
• ​https://trac.webkit.org/changeset/256706 [GStreamer] Build failure with Clang/libc++ due to missing WallTime→float for std::isnan()
• ​https://trac.webkit.org/changeset/256917 [GTK][WPE] Set ccache as compiler launcher, add opt-in sccache support
• ​https://trac.webkit.org/changeset/257067 [GTK][WPE] Not set ccache compiler prefix if ccache its already the compiler binary in path.
• ​https://trac.webkit.org/changeset/257649 Fix issue in cmake build for checking ccache

Proposed merges for 2.27.91

• ​https://trac.webkit.org/changeset/256703 [Geoclue] Avoid usage of provider in callbacks after it has been destroyed
• ​https://trac.webkit.org/changeset/256727 [WPE] Change the QML plugin install path
• ​https://trac.webkit.org/changeset/256612 [WPE] WPEQtView.h includes the uninstalled WPEQtViewBackend.h
• ​https://trac.webkit.org/changeset/257202 [GStreamer][WPE] Add GstGLMemoryEGL support for the video-plane-display
• ​https://trac.webkit.org/changeset/256491 Multiple GCC 10 build failures in ANGLE

Proposed merges for 2.27.90

• ​https://trac.webkit.org/changeset/255790 [GStreamer] Client-side video rendering doesn't fallback to internal compositing

Changes on track

Previous versions

For changes in older stable branches see: 2.26.x

Useful commands

To get a wiki-formated list of commits that just got merged:

 $ git log --pretty=oneline <commit>.. | cut -d ' ' -f 5- | sed "s,\(.\+\)\(https://bugs.*\),  * ~~[\2] ''\1''~~,"

How to add a webkit-2.28 branch to existing git-svn clone

If you have already cloned ​git://git.webkit.org/WebKit.git, it only contains a git-svn clone of the svn trunk. To add webkit-2.28 branch to there, add a new remote to .git/config:

[svn-remote "webkit-2.28"]
    url = https://svn.webkit.org/repository/webkit/releases/WebKitGTK/webkit-2.28
    fetch = :refs/remotes/git-svn-webkit-2.28

and run the following commands:

git svn fetch webkit-2.28 -r 255667
git branch webkit-2.28 git-svn-webkit-2.28
git checkout webkit-2.28
git svn rebase