The latest beta is mIRC v7.21 and can be downloaded from here.
Changes:
1.Fixed numeric 482 bug with text being changed to lowercase.
2.Changed "Minimize to tray" option default to off under Windows 7 due to the way Windows 7 hides all tray icons by default.
3.Fixed $timer().secs bug when /timer HH:nn was used.
4.Fixed /timer -h recursive call bug.
5.Fixed $regsubex() bug when handling empty substrings.
6.Fixed Alt/AltGr bug with different keyboard layouts.
7.Fixed tray icon mouse clicks bug where right/left mouse clicks were not processed correctly.
8.Added "Use compatibility mode" option to SSL dialog.
9.Fixed Servers List popup menu not processing selections correctly in some situations.
10.Fixed servers port cycling not working correctly when a prior connection used SSL.
11.Fixed $strip() bug stripping out all ^O control codes.
12.Fixed "scroll here" bug in window scrollbar popup menus.
13.Fixed MDI icon display bug when toggling fullscreen mode under Windows 7.
14.Fixed /list bug with min/max values on some networks.
15.Fixed $input() display bug with long strings.
16.Fixed /did bug with -vh and -g switches not working correctly when combined.
Source: Khaled
