Beta v7.61.159 changes:
1.Item 1, https://forums.mirc.com/ubbthreads.php/topics/245917
Required significant changes to code.
2.Item 2, https://forums.mirc.com/ubbthreads.php/topics/266935
3.Item 3, https://forums.mirc.com/ubbthreads.php/topics/266791
Experimental. Required significant changes to code. Uses undocumented
Windows APIs. Only works on Windows 7 onwards. If any part of the
method fails, defaults to global Control+Break.
4.Item 4, updated.
5.Item 5, updated.
6.Item 6, https://forums.mirc.com/ubbthreads.php/topics/266960
7.Item 7, https://forums.mirc.com/ubbthreads.php/topics/266966
8.Item 8 and 9, https://forums.mirc.com/ubbthreads.php/topics/266720
Required important changes to the regex and these identifiers,
so need testing to ensure changes are working correctly and are
backward compatible.
9.Item 10, updated.

Changes:
1.Changed how on KEYUP/KEYDOWN are processed. This affects the values
returned in $keyval and $keychar for combined key presses.
2.Reverted change to $cnick() so that it returns default values for
non-existent nicks.
3.Changed how Control+Break key is handled so that it will work only
when mIRC is the active application.
4.Updated PCRE regex library to v8.44.
5.Updated LibZip library to v1.6.1.
6.Added $width() and $height() sixth $true/$false parameter to enable
custom window-specific measurement.
7.Added support for irc hotlinks that uses the non-standard plus sign
prefixed port number format, such as +6697.
8.Extended $bfind() to support regex searches using:

$bfind(&binvar, N, M, [name]).regex

Where M is a regular expression when .regex is used. The name parameter
is the $regml() name.

9.Extended $regml()/$regmlex() to save result to a &binvar using:

$regml([name], n, [&binvar])
$regmlex([name], m, n, [&binvar])

When saving to a &binvar, returns the length of the saved text.

10.Updated OpenSSL library to v1.1.1e.