In the previous version (2.3.4) thumbnail images were displayed correctly in the popup notification window, but now that I've updated to 2.3.5, there is no thumbnail image in the window. (I tried turning on-off "Show featured image" but it didn't help)
/*As a fast help I changed back line 340 in upprev.php to the previous version - now I have thumnail pictures again*/
Also is it possible to keep the custom added language (mo, po) files, and the modified upprev.css during a plugin update?
Thanks your reply in advance.