Problem: Error messages are spread out.
Solution: Move more error messages to errors.h.

Problem: Vim9: LISTAPPEND instruction does not check for a locked list.
Solution: Check whe...

Problem: Tiny build fails.
Solution: Adjust #ifdefs

Problem: Error messages are spread out.
Solution: Move the last errors from globals.h to er...

Problem: Build fails.
Solution: Use the right error message name.

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: Value of MAXCOL not available in Vim script.
Solution: Add v:maxcol. (Naohiro Ono,...

Problem: Build failure.
Solution: Add missing changes.

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: When using feedkeys() abbreviations may be blocked.
Solution: Reset tb_no_abbr_cnt...

Problem: Vim9: no easy way to check if Vim9 script is supported.
Solution: Add has('vim9scr...

Problem: Some common lisp and scheme files not recognized.
Solution: Recognize *.asd as lis...

Problem: Build failure with tiny and small features. (Tony Mechelynck)
Solution: Adjust #if...

Problem: Build fails for missing error message.
Solution: Add changes in missed file.

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: Build failure compiling xxd with "-std=c2x".
Solution: define _XOPEN_SOURCE. (Yega...

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: Duplicate assignment.
Solution: Remove the second assignment. (closes #9442)

Problem: Error messages are spread out.
Solution: Move more errors to errors.h.

Problem: Vim9: no error for shadowing if script var is declared later.
Solution: Check argu...

Problem: Insert completion code is too complicated.
Solution: More refactoring. Move funct...

Problem: First line not redrawn when adding lines to an empty buffer.
Solution: Adjust the ...

Problem: Vim9: memory leak when text after a nested function.
Solution: Free the function i...

Problem: Going beyond the end of the line with /\%V.
Solution: Check for valid column in ge...

Problem: Using freed memory with /\%V.
Solution: Get the line again after getvvcol().

Problem: Vim9: failure with partial with unknown argument count.
Solution: Do not copy argu...

Problem: Unnecessary check for NULL pointer.
Solution: Remove the check. (closes #9434)

Problem: When an internal error makes Vim exit the error is not seen.
Solution: Add the err...

Problem: Vim9: partial variable argument types are wrong, leading to a
crash.
Sol...

Problem: Insert mode completion functions are too long.
Solution: Split up into multiple fu...

Problem: Compiler warning from gcc for uninitialized variable.
Solution: Initialize variabl...

Problem: Coverity reports a possible memory leak.
Solution: Free the array if allocation fa...

Problem: SIGTSTP is not handled.
Solution: Handle SIGTSTP like pressing CTRL-Z. (closes #9422)

Problem: Match highlight disappears when doing incsearch for ":s/pat".
Solution: Only use l...

Problem: MS-Windows: fnamemodify('', ':p') does not work.
Solution: Do not consider an empt...

Problem: Line comment start is also found in a string.
Solution: Skip line comments in a st...

Problem: Insert mode completion function is too long.
Solution: Refactor into multiple func...

Problem: No proper test for maintaining change mark in diff mode.
Solution: Run the test wi...

Problem: CTRL-U in Insert mode does not fix the indent.
Solution: Fix the indent when 'cind...

Problem: Repeating line comment is undesired for "O" command.
Solution: Do not copy line co...

Problem: After ":cd" fails ":cd -" is incorrect.
Solution: Set the previous directory only ...

Problem: C line comment not formatted properly.
Solution: If a line comment follows after "...

Problem: Coverity reports a memory leak.
Solution: Free memory in case of failure.

Problem: getcmdline() argument has a misleading type.
Solution: Use the correct type, even ...

Problem: Using unititialized variable.
Solution: Set the option flags to zero for a termina...

Problem: Heredoc test fails.
Solution: Correct order of function arguments.

Problem: Vim9: double free when using lambda.
Solution: Don't free both cmdline and line_to...

Problem: Build failure without the 'autochdir' option. (John Marriott)
Solution: Add #ifdefs.

Problem: Diff mode confused by NUL bytes.
Solution: Handle NUL bytes differently. (Christia...

Problem: Vim9: no error if something follows :enddef in a nested function.
Solution: Give a...

Problem: Vim9: double free if a nested function has a line break in the
argument ...

Problem: Cannot build with dynamic Ruby 3.1.
Solution: Add "_EXTRA" variables for CI. Add ...

Problem: The way xdiff is used is inefficient.
Solution: Use hunk_func instead of the out_l...

Problem: Restoring directory after using another window is inefficient.
Solution: Only rest...

Problem: Vim9: wrong argument for append() results in two errors.
Solution: Check did_emsg....

Problem: Function list test fails.
Solution: Adjust the test for the new location of the fu...

Problem: The eval.txt help file is way too big.
Solution: Move the builtin function details...

Problem: No error for passing an invalid line number to append().
Solution: In Vim9 script ...

Problem: illegal memory access when completing with invalid bytes.
Solution: Avoid going ov...

Problem: Various spelling mistakes in comments.
Solution: Fix the mistakes. (Dominique Pell...

Problem: Help for expressions does not mention Vim9 syntax.
Solution: Add the rules for Vim...

Problem: The ins_complete() function is much too long.
Solution: Split it up into multiple ...

Problem: Vim9: type check for filter() does not accept unknown.
Solution: Also accept unkno...

Problem: When the compare function of sort() produces and error then sort()
does ...

Problem: Containerfile using prefix name not recognized.
Solution: Recognize Containerfile.*.

Problem: Cannot use a script-local function for 'foldtext'.
Solution: Expand "s:" and "<SID...

Problem: Error messages are spread out.
Solution: Move error messages to errors.h. Avoid d...

Problem: Vim9 help still contains "under development" warnings.
Solution: Remove the explic...

Problem: Dockerfile using prefix name not recognized.
Solution: Recognize Dockerfile.*. (cl...

Problem: Vim9: skip expression type is not checked at compile time.
Solution: Add argument ...

Problem: "gM" does not count tabs as expected.
Solution: Use linetabsize() instead of mb_st...

Problem: Vim9: double free with nested :def function.
Solution: Pass "line_to_free" from co...

Problem: Vim9: Cannot set 'cpo' in main .vimrc if using Vim9 script.
Solution: Do not resto...

Problem: It is not easy to use a script-local function for an option.
Solution: recognize s...

Problem: Vim9: test for map() on string fails.
Solution: Expect string return type.

Problem: Vim9: not sufficient testing for variable initialization.
Solution: Add another te...

Problem: Vim9: the second argument of map() and filter() is not checked at
compil...

Problem: Vim9: no test for nested function not available later.
Solution: Add a test.

Problem: Vim9: confusing error when using function() with a number.
Solution: Check for a f...

Problem: Vim9: no proper type check for first argument of call().
Solution: Add specific ty...

Problem: Vim9: many local variables are initialized with an instruction.
Solution: Initiali...

Problem: When modifyOtherKeys is used CTRL-C is not recognized.
Solution: Check for upperca...

Problem: Github CI: workflows may overlap.
Solution: Cancel previous workflows when startin...

Problem: Vim9: type check for using v: variables is basic.
Solution: Specify a more precise...

Problem: Duplicate code for translating script-local function name.
Solution: Move the code...

Problem: The argument list may contain duplicates.
Solution: Add the :argdedeupe command. (...

Problem: E1135 is used for two different errors.
Solution: Renumber one error.

Problem: Can define autocmd for every event by using "au!".
Solution: Check if a command is...

Problem: Arglist test fails.
Solution: Adjust for locking the arglist for ":all".

Problem: Crash when clearing the argument list while using it.
Solution: Lock the argument ...

Problem: Crash when switching to other regexp engine fails.
Solution: Check for regprog bei...

Problem: More duplicated code in f_getreginfo().
Solution: Also use getreg_get_regname(). (...

Problem: QNX: crash when compiled with GUI but using terminal.
Solution: Check the gui.in_u...

Problem: Solution filter files are not recognized.
Solution: Add pattern *.slnf and use jso...