Be aware of difference in lightmap behavior!. See rendertimes below for lightmap only:
1200 subdivisions, scale 0.005
1.45.78:

1.46.04: (notice the cleaner lightmap result)

similar time and quality to 1.45.78 is achieved with 900 subdiv.:
1200 subdivisions, scale 0.005
1.45.78:

1.46.04: (notice the cleaner lightmap result)

similar time and quality to 1.45.78 is achieved with 900 subdiv.:

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