Mobs spawning on tree tops

I had skeletons spawning on top of the dark oak trees of my lit up base in 1.14 that came out today

Same for me. In my base Skeletons, Creepers and Zombie Villagers are now raining from above cause they are spawning on top of trees in an area I was considering to be "safe"!
Some trees were even lit up to test if affected by light levenl but still got some mobs to spawn there next night.

Yeah, I have a torch in one of the trees skeletons were spawning in.

Same here, just updated to 1.14.9

User on Reddit is reporting that mobs are also spawning in top of chorus tree plants in the over world

We had this happen on our realm last night. All spawns were on existing trees, have not tested on newly generated trees.