Originally we planned to release 10.6 in early december. But you can imaging that we won't release the same week as a new REAL Studio version and not a week with Christmas. So instead of a 10.6 release close to Christmas, we decided to wait with the release until January. This gives us time to also test with first alpha versions of REAL Studio 2011r1.
10.6 prereleases will be available till end of December, so if you license times out end of year and you don't want to upgrade, you can download the last one for your archives.