The nrel-pysam package version within the environment YAML is specified to be 5.1.0. The v5.1.0 is within sync of SAM 2023.12.17 r1, SSC 290: March 4, 2024.
But, as of SAM 2024.12.12, SSC 298: December 12, 2024, various modifications have been made to SAM that include updated PV modules and inverter libraries, speed up of simulation run times for PVWatts and Detailed PV, etc. This version of SAM is encompassed by the 6.0.1 update to the nrel-pysam package.