Bug fixes included in this version: http://opensolution.org/download/Quick.Cms/bugFixes.txt
HOW TO UPDATE FROM v3.0? 1. We DIDN'T changed database structure in v3.1. You can download new version and overwrite all files in "db/" directory from v3.0
2. Changed or added files in v3.1 actions_admin/p.php config/general.php core/files.php core/files-admin.php core/pages.php plugins/tinymce/*.* templates/default.css templates/mobile_default.css templates/pages_default.tpl templates/admin/container.tpl templates/admin/pages.tpl
If You want to update from Quick.Cms v3.0. Check changes using Total Commander. Select file in Quick.Cms v3.0 (first column) and the same file in Quick.Cms v3.1 (second column) and click in menu "Files" > "Compare by Content". You will find changes made by us.