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    Typeahead issues were fixed
  • JetBrains Runtime was rebased on top of  OpenJDK 11.0.9
  • Typeahead fixes were reworked on Windows and Linux  JBR-2712JBR-2759
  • The GoLand crash on Big Sur Beta 10 after machine wakes from sleep was repaired JBR-2790
  • The conflict between IDEA 2020.2 and RedQuits causing crashes was resolved JBR-2653 
  • DCEVM crashes on sun.instrument.InstrumentationImpl.retransformClasses was fixed JBR-2762 
  • The fix requesting focus to the component at the time it's being removed from the component hierarchy was reverted JBR-2778 
  • JCEF issues with receiving mouse events on macOS were fixed  JBR-2780 
  • Redundant directories were removed from JBR bundles JBR-2787crashes in JFR tests in DCEVM were fixed JBR-2813
  • Focus API invocations logging with stack traces was introduced JBR-2696
  • The issues related to Surface Pen in PyCharm CE were repaired JBR-2490
  • Fastdebug-builds on macOS were added in JBR bundles JBR-2846 



Fixed issues

  • JBR-2790 GoLand crashes on macOS Big Sur Beta 10JBR-2653 IDEA 2020.2 crashes on the most simple actions (Mac OS) caused by RedQuits2490 PyCharm Community Edition 2020.1: Does Not Respond To Surface Pen On Surface Pro Tablet
  • JBR-2696 Log focus API invocations with stack traces
  • JBR-2712 Typeahead mechanism doesn't work on Windows
  • JBR-2759 Typeahead issue on Linux
  • JBR-2762 [DCEVM] JVM Crashes on sun.instrument.InstrumentationImpl.retransformClasses method
  • JBR-2778 Revert fix for JBR-1973 (IDEA-215004)
  • JBR-2780 [mac] jcef in JScrollPane can loose mouse events
  • JBR-2787 JBR builds with JCEF module should not contain modular-sdk dirs2795 JDK15: compiler warnings in native code
  • JBR-2798 java/awt/Dialog/CloseDialog/ throws NPE at java.desktop/java.awt.KeyboardFocusManager.getCurrentKeyboardFocusManager
  • JBR-2810 DCEVM patches need to be refactored
  • JBR-2813 Some of Flight Recorder tests crash VM at [libjvm.dylib+0x231932] CompiledMethod::clean_ic_if_metadata_is_dead(CompiledIC*)+0x40
  • JBR-2846 macOS jbrsdk-fastdebug artefacts are not presented in JBR bundles
  • JBR-2848 Rollback JBR-2712 fix in release (1145) branch

Known major and critical issues


  • JBR-745 Improve java2d rendering performance on macOS by using Metal framework
  • JBR-2717 IDE crash when JavaFX WebView loaded html with embedded base 64 image.
  • JBR-2829 Low font rendering quality on FullHD display in macOS


  • JBR-186 Modal dialogs (Messages) shouldn't popup IDEA when another application is active
  • JBR-694 [macos] java/awt/event/KeyEvent/ExtendedKeyCode/ Wrong extended key code
  • JBR-746 IntelliJ Idea Ultimate 2018.1 Crashed on Linux x64
  • JBR-947 javax/swing/plaf/basic/BasicComboPopup/7072653/ Popup window height is wrong
  • JBR-1049 IDEA crashes when open another project from full screen mode on mac os
  • JBR-1115 java/awt/Robot/MouseLocationOnScreen/ fails on Windows
  • JBR-1147 java/awt/FileDialog/FilenameFilterTest/FilenameFilterTest.htm: Filter was not called
  • JBR-1235 AtomicAppend tests fail on macOS 10.13 ("High Sierra")
  • JBR-1352 WebView rendering artifacts while resizing
  • JBR-1371 jb/java/awt/Toolkit/ became failing on new created MacOSX 10.13
  • JBR-1523 IDE Freeze. No events are pumped by EventDispatchThread. kill <pid> helps.
  • JBR-1559 Hotkeys with numbers number buttons stop to work
  • JBR-1577 IDE crashes on startup
  • JBR-1580 Performance drop on native fonts load
  • JBR-1581 KotlinNullPointerException in IDEA at local variable creation with JBR11, no NPE with JBR8
  • JBR-1606 JDK11 Compiler Thread crashes with SIGSEGV in libjvm.dylib
  • JBR-1635 Native file dialog does not work as an oppositeWindow properly
  • JBR-1661 LightBeam: performance degradation on Linux (10% - 90%)
  • JBR-1676 Caret disappears when switching windows using Command-Backtick System shortcut for "Move focus to next window"
  • JBR-1688 Activate Next Window (Cmd-tilde) does not work with non-english input source
  • JBR-1727 GoLand does not start on macOS 10.12
  • JBR-1748 AppCode 2019.2 freezes, must be force quit
  • JBR-1752 Floating windows overlap modal dialogs
  • JBR-1775 JBR uses old font version if it bundled
  • JBR-1785 Windows not drawing on i3 + VNC after 2019.2 update with JBR11
  • JBR-1800 [JBR11] java/awt/TextArea/TextAreaCaretVisibilityTest/ - The test for bug 71297422 failed
  • JBR-1816 WebView JSC hangs in Jupyter Notebook on macOS
  • JBR-1849 IDEA 2019.2 There is a problem with the key
  • JBR-1884 IntelliJ IDEA sometimes crashes with "cannot make java calls from the native compiler" errorJBR-1973 Focus is lost by editor on project opening
  • JBR-2013 PyCharm crashes upon opening Jupyter Notebook
  • JBR-2052 Strange columns separators in native file dialog on macOS
  • JBR-2123 JDK11 Focus jumps when opening dialogs from Fullscreen IDEA on Mac OS
  • JBR-2174 JRE crashes (SIGBUS at in WatcherThread)
  • JBR-2190 Random crash with IntelliJ Ultimate 2019.3.3 on Windows 10 EXCEPTION_ACCESS_VIOLATION in C2 CompilerThread0
  • JBR-2204 TextLayout.getPixelBounds returns incorrect bounds if context transform is scaled
  • JBR-2207 TitledBorder leaks PropertyChangeListener
  • JBR-2238 Intellij outputs wierd characters for keys that are should not output anything
  • JBR-2285 IntelliJ IDEA 2020.1 Ultimate can't start
  • JBR-2292 ColoredTreeCellRenderer takes a lot of time computing stringWidth
  • JBR-2400 PyCharm periodically hangs after update to 2020
  • JBR-2422 Rendering problem on our JDK in full screen mode.
  • JBR-2436 Regular IDE freezes, UI completely unresponsive
  • JBR-2500 Random crashes on opening *.md file on Ubuntu
  • JBR-2562 Crash in libsystem_kernel.dylib possibly related to JCEF
  • JBR-2580 Huge rendering artifacts on Ubuntu 20.04/HiDpi
  • JBR-2600 SIGSEGV in [] at Java frames sun.awt.X11.XlibWrapper.*
  • JBR-2610 The java/awt/Window/GetScreenLocation/ fails after 11.0.8 CPU
  • JBR-2632 Wrong kerning with the macOS system font on Catalina
  • JBR-2664 GUI freezes
  • JBR-2676 Function buttons disappear in touchbar moving IDE window back and forth
  • JBR-2694 JBR crash on selecting binary on macOS Big Sur
  • JBR-2722 Visual artifacts, black boxes in Linux/Chrome OS
  • JBR-2749 [mac] jcef hangs on shutdown
  • JBR-2752 Broken spacing on FullHD monitors on macOS
  • JBR-2755 CLion UI freezes with almost every action after updating 2020.3 BETA to newer BETAJBR-2760 PyCharm crashes every time I try to add a ssh new interpreter or new run configuration
  • JBR-2843 No caret in merge window

The list of all known issues can be found here.