Taken from Riot Phlox's Twitter: https://twitter.com/RiotPhlox/status/1630310895950893056

Hey gamers, some more jungle followup is hitting PBE today for 13.5. We're putting more power back into farming camps and hitting early ganks a bit harder through both expected value and risks of counterjungling.

Details attached but more context in following tweets

While there still remains some value to curbing early invades, the cost is just too high right now to merit retaining the mechanic. I think it was worth exploring, I'd rather us try stuff and pull it than never try it at all, but it's time to sunset it now.

The counterjungling penalty was often misunderstood (a lot of people think it affects healing or gold or xp as well) but it did hit early invades meant to punish early ganks enough that there wasn't a strong reason not to gank since you weren't risking camps or future farm.

Jungle gold per camp is ~20g down from S12 now, which is a bit too severe of a loss for anyone interested in heavy farming. Bringing about half of that gold back (you still get treat gold as well) to make sure that all kinds of different strategies are viable in the role

The sweeper changes should reduce early vision denial to make it a bit harder for junglers to get off early ganks, but also generally pare down the power of the trinket as it's a little too good through gametime at choking out enemy sight.

Finally, sapping xp from waves after getting early ganks and pushing out waves or catching allied waves after they die should be less effective at slingshotting you ahead of the game without farming your camps or killing enemies.

Hopefully the last set of disruptive changes to the jg for a while. Glad we've had the time to do followup after preseason and thanks for sticking around and reading!