When will the PIMSim 2.0 release?

[Yicheng22]

The readme file mentioned the PIMSim 2.0.
However, the source code was the old version.

[Yicheng22]

The readme file mentioned the PIMSim 2.0. However, the source code was the old version.

Be more precisely, I wish to know will the gem5 simulation be supported. Or can I have the detailed instructions to build gem5.