There was an update to this on 23/12/2016. It just changes the .exe file. Here’s the link to get it:
http://artemis.forumchitchat.com/post/whoops-artemis-2-5-101-8352578?pid=1294311617
Will we be updating to 2.5 for TSN? Before the next official mission or before the unofficial missions on Christmas Eve and New Year’s Eve?