In pygeo 1.17 an issue to MPhys 2.0 is solved and support to MPhys 2.0 is added.
See https://github.com/mdolab/pygeo/releases
So version 1.17 should be recommended. Not 1.15.
Also other software was updated.
Taucs 3.8.0 -> 3.9.2
Pycycle 4.3.0 -> 4.4.0
FunToFem 0.3.8 -> 0.3.9
OpenAeroStruct 2.9.1 -> 2.12.0 with some Numpy 2.x fixes
Dafoam 3.2.0 -> 4.0.3 (i see no release of 3.2.0 at Dafoam. 3.0.0 to 3.0.6, 3.1.0 to 3.1.2 and 4.0.0 to 4.0.3 available)
ADflow 2.12.0 -> 2.12.1
So perhaps more updates in recommended version in readme.md