Problem:    Build error with +eval but without +channel or +job.
Solution:   Add #ifdef. (John Marriott)

Problem:    Vim9: cannot compare with v:null.
Solution:   Allow comparing anything with v:null. (closes #9866)

Problem:    MS-Windows GUI: slow scrolling with maximized window.
Solution:   Use a better way to check the window is on screen. (Ken Takata,
            closes #9865)

Problem:    Compiler warning for uninitialized variable.
Solution:   Initialize the variable. (John Marriott)

Problem:    Vim9: some error messages are not tested.
Solution:   Add a few more test cases.  Delete dead code.

Problem:    Command completion makes two rounds to collect matches.
Solution:   Use a growarray to collect matches. (Yegappan Lakshmanan,
            closes #9860)

Problem:    No fuzzy cmdline completion for user defined completion.
Solution:   Add fuzzy completion for user defined completion. (Yegappan
            Lakshmanan, closes #9858)

Problem:    Cmdline popup menu not removed when 'lazyredraw' is set.
Solution:   Temporarily reset 'lazyredraw' when removing the popup menu.
            (closes #9857)

Problem:    Suspending with CTRL-Z does not work on Android.
Solution:   Do not handle SIGTSTP. (closes #9854)

Problem:    No fuzzy completieon for maps and abbreviations.
Solution:   Fuzzy complete maps and abbreviations. (Yegappan Lakshmanan,
            closes #9856)