Not sure if the change I am seeing is from SU11 or the new SDK. My two airstrip that I created on hillsides used to naturally show the satellite image correctly with logging roads but now the entire area has changed with very dense and very tall trees completely covering the hillside which naturally caused an issue for my airstrips. After about an hour I have made my airstrips accessible but they sure look different.
On the bright side - it was sure nice to be able to create Helipad Starts.