Despite our efforts, Slimjet 11 still has compatibility issues with Windows XP that we are not able to fix so far due to widespread changes made by the Chrome team to make it incompatible with XP. The issues we are aware of are these:
1. Can’t view PDF with the internal pdf viewer.
2. Can’t install any extensions from the web store.
If these issues don’t bother you, you can stay on Slimjet 11. Otherwise, please install Slimjet 10 instead from this archive directory: http://www.slimjet.com/release/archive/10.0.8.0/ . From now on, when users visit Slimjet.com with a Windows XP PC, they will be automatically redirected to the download page of Slimjet 10. We will continue to fix bugs for Windows XP users on the Slimjet 10 branch.
We managed to support Windows XP in Slimjet 11 with significant efforts invested. However, based on the way the Chrome team has been quickly introducing more and more XP-incompatible code into the Chromium code base, it doesn’t make sense for us to spend a lot of time every time to find every little changes and undo them in order to support XP. Therefore, we have decided to stop supporting XP when we migrate to Slimjet 12 running on Chromium 52.
XP users can continue to download Slimjet 11 from the early version archive. If there is a critical security issue with Slimjet 11, we will update it into the Slimjet 11 branch.
As for Vista support, based on the current estimate, supporting Vista takes much less effort. However, I guess much fewer people use Vista anyway.
Thanks a lot for your understanding and support.