Problem: Using freed memory when substitute uses a recursive function call.
Solution: Make ...

Problem: Generating the normal command table at runtime is inefficient.
Solution: Generate ...

Problem: Vala files are not recognized.
Solution: Add the *.vala pattern. (closes #9654)

Problem: Channel out callback test is flaky on Mac.
Solution: Assign high priority to the t...

Problem: The timeout limit for spell suggestions is always 5000 milli
seconds.
So...

Problem: No proper test for moving the window separator.
Solution: Add a test. Add comment...

Problem: Stack corruption when looking for spell suggestions.
Solution: Prevent the depth i...

Problem: One error message not in errors.h. (Antonio Colombo)
Solution: Move the message an...

Problem: ":retab 0" may cause illegal memory access.
Solution: Limit the value of 'tabstop'...

Problem: MS-Windows: warning from MSVC on debug build.
Solution: Adjust "/opt"o options. R...

Problem: Lua tests fail with Lua 5.4.4.
Solution: Check messages like before Lua 5.4.3. (Ja...

Problem: Put in Visual mode cannot be repeated.
Solution: Use "P" to put without yanking th...

Problem: Some type casts are redundant.
Solution: Remove the type casts. (closes #9643)

Problem: Error for using flatten() in Vim9 script is unclear.
Solution: Add a remark to use...

Problem: Build fails with unusual configuration.
Solution: Adjust #ifdef. (closes #9651)

Problem: *.tf file could be fileytpe "tf" or "terraform".
Solution: Detect the type from th...

Problem: Record buffer wrong if character in Select mode was not typed.
Solution: Only dele...

Problem: Accessing freed memory.
Solution: Set the bh_curr pointer to NULL.

Problem: Invalid check for NULL pointer.
Solution: Remove the check.

Problem: test_garbagecollect_now() does not check v:testing as documented.
Solution: Give a...

Problem: Crash when recording and using Select mode.
Solution: When deleting the last recor...

Problem: Some compilers don't like a goto label without statement.
Solution: Return instead...

Problem: Vim9: map() gives type error when type was not declared.
Solution: Only check the ...

Problem: MS-Windows: set_guifontwide() is included but won't work.
Solution: Include set_gu...

Problem: Possible crash when invoking timer callback fails.
Solution: Initialize the typval...

Problem: No tests for clicking in the GUI tabline.
Solution: Add test functions to generate...

Problem: Vim9: using "lockvar!" in :def function does not work.
Solution: Add "!" instead o...

Problem: Filter-map test fails.
Solution: Only reject number argument in Vim9 script.

Problem: Vim9: depth argument of :lockvar not parsed in :def function.
Solution: Parse the ...

Problem: Vim9: no error when using a number for map() second argument
Solution: Disallow nu...

Problem: Long/int compiler warnings; function arguments swapped.
Solution: Add type casts. ...

Problem: MS-Windows: clumsy way to suppress progress on CI.
Solution: Check for "$CI" in th...

Problem: Some functions in normal.c are very long.
Solution: Move code to separate function...

Problem: MS-Windows: some old compiler support remains.
Solution: Remove obsolete compiler ...

Problem: Reading before the start of the line.
Solution: Check boundary before trying to re...

Problem: Illegal memory access with bracketed paste in Ex mode.
Solution: Reserve space for...

Problem: Illegal memory access when undo makes Visual area invalid.
Solution: Correct the V...

Problem: Vim9: cannot use a function from an autoload import directly.
Solution: Add the AU...

Problem: Illegal memory access when copying lines in Visual mode.
Solution: Adjust the Visu...

Problem: Illegal memory access with large 'tabstop' in Ex mode.
Solution: Allocate enough m...

Problem: Too much code for supporting old MSVC versions.
Solution: Remove MSVC 2003 support...

Problem: Window title test still fails in some configurations.
Solution: Explicitly set the...

Problem: Window title test still fails in some configurations.
Solution: Use WaitForAssert().

Problem: Window title test fails in some configurations.
Solution: Only run the test if the...

Problem: partial in 'opfunc' cannot use an imported function.
Solution: Also expand the fun...

Problem: Using setbufvar() may change the window title.
Solution: Do not redraw when creati...

Problem: Recursion test fails with MSVC.
Solution: Use a smaller limit for MSVC.

Problem: Condition with many "(" causes a crash.
Solution: Limit recursion to 1000.

Problem: The normal_cmd() function is too long.
Solution: Move parts to separate functions....

Problem: screenpos() has non-zero row for invisible text.
Solution: Only add the window row...

Problem: Entering a character with CTRL-V may include modifiers.
Solution: Reset "mod_mask"...

Problem: Vim9: cannot export function that exists globally.
Solution: When checking if a fu...

Problem: When using the GUI CTRL-Z does not stop gvim.
Solution: When using the GUI set SIG...

Problem: Some tests do not clean up properly.
Solution: Delete created files. (Yegappan Lak...

Problem: MS-Windows: Support for MSVC 2003 is not useful.
Solution: Remove the exceptions f...

Change ga_add_string to ga_copy_string in MMBackend.m

Problem: Vim9: the switch for executing instructions is too long.
Solution: Move some code ...

Problem: Cannot use an import in the "expr" part of 'spellsuggest'.
Solution: Set the scrip...

Problem: Various file types not recognized.
Solution: Add patterns to recognize more file t...

Problem: Resizing terminal may cause to behave like CTRL-Z.
Solution: Set "got_tstp" only w...

Problem: MS-Windows: code for calculating font size is duplicated.
Solution: Move the code ...

Problem: Cannot use an import in 'charconvert'.
Solution: Set the script context when evalu...

Fix `termguicolors` tests

Problem: Cannot use an import in 'printexpr'.
Solution: Set the script context when evaluat...

Ref: https://gh-community.github.io/issue-template-feedback/structured/#checkboxes-must-have-uni...

Problem: json5 files are not recognized.
Solution: Add a pattern for json5 files. (closes #...

Better bug report text

Problem: All conceal tests are skipped without the screendumps feature.
Solution: Only skip...

Problem: MS-Windows: code for "old look" is obsolete.
Solution: Delete obsolete code. Use ...

Adjust RGB values of No-X11 colors (darkyellow, lightmagenta, lightred)
defined in Colors.plist;...

Problem: Not all gitconfig files are recognized.
Solution: Add a few more patterns. (Tim Po...

Problem: Gnuplot file not recognized.
Solution: Recognize ".gnuplot". (closes #9588)

Problem: Cannot use an import in 'patchexpr'.
Solution: Set the script context when evaluat...

Problem: Cannot use an import in 'indentexpr'.
Solution: Set the script context when evalua...

Problem: Cannot use an import in 'includeexpr'.
Solution: Set the script context when evalu...

Problem: Cannot use an import in 'formatexpr'.
Solution: Set the script context when evalua...

Problem: Memory leak when evaluating 'diffexpr'.
Solution: Use free_tv() instead of clear_t...

Problem: Vim9: cannot use an import in 'diffexpr'.
Solution: Set the script context when ev...

Problem: 'balloonexpr' is evaluated in the current script context.
Solution: Use the script...

Problem: 'foldtext' is evaluated in the current script context.
Solution: Use the script co...

Problem: Vim9: invalid error for return type of lambda when debugging.
Solution: Do not che...

Problem: Vim9: autoload script not loaded after "vim9script noclear".
Solution: Check IMP_F...

Problem: Vim9: cannot use imported function with call().
Solution: Translate the function n...

Problem: MS-Windows: runtime check for multi-line balloon is obsolete.
Solution: Remove the...

Problem: Vim9: can use an autoload name in normal script.
Solution: Disallow using an autol...

Problem: Cannot use an import in 'foldexpr'.
Solution: Set the script context to where 'fol...

Problem: Filetype detection for BASIC is not optimal.
Solution: Improve BASIC filetype dete...

Problem: Cannot invoke option function using autoload import.
Solution: Expand the import t...

Problem: MS-Windows: still using old message API calls.
Solution: Call the "W" functions di...

Problem: MS-Windows: unnessary casts and other minor things.
Solution: Clean up the MS-Wind...

Problem: Disallowing empty function name breaks existing plugins.
Solution: Allow empty fun...

Problem: Vim9: error message for old style import.
Solution: Use another error message. Ad...

Problem: Undo synced when switching buffer in another window.
Solution: Do not sync undo wh...

Problem: The nv_g_cmd() function is too long.
Solution: Move code to separate functions. (Y...

Problem: Error in legacy code for function shadowing variable.
Solution: Only give the erro...