5.2.7 has just been released and is available from
http://itmill.com/downloads/itmill-toolkit.htm?version=5.2.7
. Many of the most requested features and bug-fixes from trunk have been integrated to this release, since 5.3.0 has not been released yet.
Read the details on release-notes:
http://www.itmill.com/download/itmill-toolkit/stable/5.2.7/release-notes.html
We scheduled 5.2.8 to next week and will continue releasing 5.2.x series with bugfixes until 5.3.0 is ready and stable.