That's good, though all old saves were kind of broken by the apparently intentional reduction to a maximum of 12 building squares on every planet, which makes no sense!
Also the population changes have already destroyed many previously perfectly functional buildings, for example on one of the now max 12 slot planets, four of the buildings were ruined and it wouldn't let be replace them...
There's no way I can redevelop all 160 and growing planets in my current empire without it crippling my economy - as I said in another thread, it makes no sense and it doesn't compel you to explore if all the planets are small and basically useless, for example Pluto and Jupiter aren't the same and have different levels of mining and teraforming potential!
It's just s silly change I wish they'd change back :_ .