This sub-version was largely a "maintenance" release, meaning its primary goal was fixing the "memory leak" issues common in 14.0.
: Allowed effects like Set Matte or Displacement Map to target a layer's masks and effects without needing to pre-compose it first. adobe after effects cc 2017 1421
: You can use the Brush tool to manually "write" on a layer, which creates a series of keyframes that play back the movement as a drawing animation. but only for specific circumstances.
Adobe After Effects CC 2017 Version Number: 14.2.1 (often written as 14.2.1 or parsed from "1421") adobe after effects cc 2017 1421
Yes, but only for specific circumstances.