The new firmware will not support garbage collection. We will offer a user initiated garbage collection tool following the release of the new firmware.
Although Indilinx released a Beta firmware with OCZ which supports what they call “active” garbage collection we are still evaluating the feature and do not plan to included it in the upcoming release. The two main issues to evaluate are: 1) the effect on power consumption as the drive continues to work during what would be idle time, 2) the effects to endurance of the drive, from the additional erase and writes during the active garbage collection process.
So to summarize, active garbage collection is under evaluation, but will not be included in the upcoming firmware release.
At this time it is that a firmware upgrade from will reformat the SSD in the process. Even if that changes for the final version, we still strongly recommend that you back up all data on the SSD before doing the upgrade.