Just a reminder that next Saturday we're scheduled to put out bugfix for 2.X, which will be 2.5.3, and a second alpha of yt 3.0. I'll probably roll these up either Friday night or the following Monday morning. So if you have any changes you'd like to get in, let's aim to have them PR'd by Wednesday or so, and I think we should freeze non-critical fixes after that.
2.5.3 will have a number of minor improvements, but I think we'll probably wait until after it goes out to merge in the Boxlib consolidation, even if that gets finished.
The 3.0 alpha will include a ton of improvements to Octree stuff, as well as preliminary particle deposition. This means Tipsy & Gadget will have the most basic of support. RAMSES has had a number of improvements to its IO and units. For the third alpha (July 15) I'd like to target units, the "global mesh" issue, and perhaps SPH smoothing kernels.