Updated to Vim 9.0.472.

Announcements
====================

Sponsors
--------------------

MacVim now allows you to sponsor the team! Any amount would be
appreciated and it is of course optional. See the announcement (#1271)
for more details.

Supporting old versions of macOS (10.12 or below)
--------------------

Currently, macOS supports macOS 10.9 or above. However, this is getting
harder to do so as time goes on (e.g. the latest Xcode doesn't support
building for it). In the near future, MacVim will mostly target 10.13
(High Sierra) or above, with 10.9 - 10.12 as legacy support. Visit this
discussion (#1288) if you would be affected and would like to know more.

Features
====================

Resizing MacVim new options
--------------------

You can now smoothly drag and resize MacVim without having it
constrained to fixed multiples of the text size, by setting the
"Smoothly resizes window" under General preference pane. This also
allows MacVim to behave better when used with third-party tools (e.g.
BetterSnapTool) to snap it to one side of the screen. #1276

The command line can now be pinned to the bottom of the window with a
setting (under Appearance preference pane). This makes it look better
aligned when using smooth resizing, or in other situations where the
window size is not a direct multiples of Vim's text size (e.g. full
screen or guioption+=k). #1280

New supported text styles
--------------------

Vim highlight groups `strikethrough`, `underdouble`, `underdotted`,
`underdashed` are now supported. #1287

New Vim features
--------------------

Virtual text allows you to place custom texts to be displayed inline for
diagnostic information and more (e.g. build errors, CSS color preview).
See `:help virtual-text` for more information.

The default color schemes (e.g. desert) are now fixed to look correct
again.

Misc options and commands:
- `set nosplitscroll` lets you preserve the windows' scroll positions
  when splitting. (v9.0.0445)
- `:defer` allows you to clean up in a function. (v9.0.0370)
- `:echowindow` allows you to echo a message to a floating popup message
  window instead of to the command line. (v9.0.0321)

Fixes
====================

- Fixed non-native full screen not working well with the notch on newer
  MacBook's when set to not show menu bar. You can also use
  `MMNonNativeFullScreenSafeAreaBehavior` to force MacVim to use the
  notch area as well if you don't mind some content being obscured. #1261
- Fixed bad interaction when two settings ("Open untitled window: never"
  and "After last window closes: Quit MacVim") are set together. #1257
- Fixed the bundled Vim tutor not working when launching from the Help
  menu #1265.
- Fix crashing on launch under macOS 10.9. #1212
- Fixed potential crash when switching appearance mode in MacVim
  preferences. #1270
- Korean localized menus no longer throw a syntax error on launch. #1278
- `did_install_default_menus` should work in MacVim now. #1267

General
====================

Sparkle (updater for MacVim) is now updated to 1.27.1 (#1284), and we no
longer use DSA keys for signing updates (#1285) as we are using EdDSA
already.

Scripting
====================

- Scripting languages versions:
    - Python is now built against 3.10, up from 3.9.

Compatibility
====================

Requires macOS 10.9 or above.

Script interfaces have compatibility with these versions:

- Lua 5.4
- Perl 5.18
- Python2 2.7
- Python3 3.10
- Ruby 3.1

In macvim-dev#1547, flicker during font size change and showing tab/scrollbar were
reduced. Here, we do something similar for the flicker that happens when
entering non-native full screen, where the temporarily moved text view
shows a brief temporary draw before the updated Vim redraws over it,
leading to a flicker. Use the same mechanism here to block rendering and
offset the text view draw while we wait for Vim to preserve visual
stability as much as possible.

No need to do this for native full screen as the smooth but slow
transition means there isn't a sharp flicker anyway.

Also, reduce the "fill right" behavior of Core Text renderer (macvim-dev#1276).
It's designed to make smooth resizing more seamless but it fills all the
way to the right which makes situations like this or maximizing the
window jarrying as Vim looks stretched horizontally but not vertically.
Just put a sane cap of 4 cell sizes. This way if Vim is a little slow
smooth resize still looks good, but it won't stretch across the whole
screen.

In macvim-dev#1547, flicker during font size change and showing tab/scrollbar were
reduced. Here, we do something similar for the flicker that happens when
entering non-native full screen, where the temporarily moved text view
shows a brief temporary draw before the updated Vim redraws over it,
leading to a flicker. Use the same mechanism here to block rendering and
offset the text view draw while we wait for Vim to preserve visual
stability as much as possible.

No need to do this for native full screen as the smooth but slow
transition means there isn't a sharp flicker anyway.

Also, reduce the "fill right" behavior of Core Text renderer (macvim-dev#1276).
It's designed to make smooth resizing more seamless but it fills all the
way to the right which makes situations like this or maximizing the
window jarrying as Vim looks stretched horizontally but not vertically
during the resize before Vim catches up and resizes/redraws. Just put a
sane cap of 4 cell widths. This way even if Vim is a little slow to
respond, smooth resize still looks good, but it won't stretch across the
whole screen.

In macvim-dev#1547, flicker during font size change and showing tab/scrollbar were
reduced. Here, we do something similar for the flicker that happens when
entering non-native full screen, where the temporarily moved text view
shows a brief temporary draw before the updated Vim redraws over it,
leading to a flicker. Use the same mechanism here to block rendering and
offset the text view draw while we wait for Vim to preserve visual
stability as much as possible.

No need to do this for native full screen as the smooth but slow
transition means there isn't a sharp flicker anyway.

Also, reduce the "fill right" behavior of Core Text renderer (macvim-dev#1276).
It's designed to make smooth resizing more seamless but it fills all the
way to the right which makes situations like this or maximizing the
window jarrying as Vim looks stretched horizontally but not vertically
during the resize before Vim catches up and resizes/redraws. Just put a
sane cap of 4 cell widths. This way even if Vim is a little slow to
respond, smooth resize still looks good, but it won't stretch across the
whole screen.