Major updates to Paragon restrictions (limit of 3 per game) and various tower price and performance adjustments.
The version number in your file name (v33.1) refers to a period in late 2022. Official documentation (patch notes) for that era includes: Bloons TD 6 v33.1.5882.rar
Introduction of the Ace Paragon (Goliath Doomship) and new maps like Midnight Mansion and Covered Garden . Major updates to Paragon restrictions (limit of 3