Didnt see any topic about bugs in 1.90 so I though I'd create one. I found this one:
The method clientGUI.printText seems to replace the last character of the printed string with a newline instead of adding a newline to the string. For example doing clientGUI.printText("generic", "keke") prints kek and a newline. Guess this one didn't pop out earlier because atleast I had manually added a newline to all my printed strings and it just got replaced by another one.