TiVo has begun soliciting early adopters with a new priority request form:
We are preparing to release a software update (20.7.1) for TiVo BOLT, TiVo Roamio, TiVo Mini, and TiVo Premiere boxes. Boxes will be updated in groups. If you would like your TiVo BOLT, TiVo Roamio, TiVo Mini, or TiVo Premiere to be in one of the first groups to be updated, please enter your TiVo Service Number below. Note: Only TiVo boxes purchased directly from TiVo.com or a retailer are eligible for this update.
We suspect this release largely consists bug fixes and plumbing improvements, targeting the more significant cloud DVR and Hydra interface options for later this year.