Well, the date is certainly subject to change without notice, but the upgrade is targeted to be downloadable from the Software Center on CCO in the next 5-6 weeks.
Again, this may not be the authoritative answer you were looking for. For any updates on the release date, you can contact your Cisco account team representative, and they can find out the latest status for you from the Marketing Product Manager.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...