This is a tracking issue. Please don't use this to ask for ETAs or updates. We haven't forgotten and will post updates as they are available... it's just on the backburner right now due to time constraints.

We don't have an ETA as to when Phosphor for MC 1.17 will be available. There were some changes made in MC 1.17 with regards to the lighting engine that require Phosphor to be updated accordingly. It's not a straightforward port. Right now, we don't have any developer resources to tackle that with, so there aren't any updates in this channel.