Beta v7.51.60 changes:
1.Item 1, changed.
2.Item 2, changed.
3.Item 3, http://ircv3.net/specs/core/sts-3.3.html
Tested using /server irc.unrealircd.org 6667
4.Item 4, added.
5.Item 5, fixed.
6.Item 6, https://forums.mirc.com/ubbthreads.php/topics/261433
7.Item 7, renewed.

Changes:
1.Changed website/forums to use HTTPS/SSL connections.
2.Changed HTTP requests, such as the update check, to use HTTPS/SSL.
Older versions of mIRC do not support this, so continue to use non-SSL
connections.
3.Added support for IRCv3 STS secure connection feature that directs
clients to switch from a non-SSL to an SSL port when connecting to a
server. STS port and duration settings are saved in servers.ini file.
4.Added /server -u switch that makes the server connection ignore STS
directives.
5.Fixed SSL connect behaviour that prevented a retry connect attempt
for non-critical SSL errors.
6.Extended $file() to include .path, .name, and .ext properties.
7.Updated code signing certificate.