Detection of IE11 as been added in awtats 7.3. It is working, but the regex is not catching all cases. The regex is detecting "Trident/7.\d; rv:\d.\d.". But, there is multiple token between "trident" and "rv" that can occur.
For example, if IE11 is on a touch device (tablet, AiO/laptop with touchscreen, etc), there is a "TOUCH;" token.
Some examples of UA string not catched by the regex:
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; TNJB; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; ASJB; ASJB; MAAU; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; MAARJS; rv:11.0) like Gecko
All those cases go to "Mozilla" browser...
I'm not sure about how it should be managed since the tokens are not defined. Maybe something like :
my $regvermsie11 = qr/trident\/7\.\d*\;[^()]*rv:([\d\.]*)/i;