docs: changelog for #839

closes: #839

docs/changelog.md

@@ -38,6 +38,7 @@ As features stabilize some brief notes about them will accumulate here.
 * Improved: antialiasing for undercurl. Thanks to [@ModProg](https://github.com/ModProg)! [#838](https://github.com/wez/wezterm/pull/838)
 * Fixed: `wezterm start --cwd c:/` didn't run `default_prog`. Thanks to [@exactly-one-kas](https://github.com/exactly-one-kas)! [#851](https://github.com/wez/wezterm/pull/851)
 * Improved: [skip_close_confirmation_for_processes_named](config/lua/config/skip_close_confirmation_for_processes_named.md) now includes common windows shell processes `cmd.exe`, `pwsh.exe` and `powershell.exe`. [#843](https://github.com/wez/wezterm/issues/843)
+* Fixed: don't keep the window alive after running `something & disown ; exit` [#839](https://github.com/wez/wezterm/issues/839)
 
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