To understand the value of 14.2.1, you must know what the base 14.0 version offered. This was a "quality of life" release.
Windows 7 SP1 / 8 / 10 (64-bit) OR macOS 10.10 / 10.11 / 10.12 8 GB (16 GB or more recommended) Hard Disk 5-8 GB available space for installation Display 1280x800 resolution (1920x1080 recommended) adobe after effects cc 2017 1421
This specific "Blueberry Plabtjacks" minor update focused on stability and speed: Performance Boosts Motion Graphics templates (.mogrt) rendered up to than in the initial 14.2 release. Vector Speed To understand the value of 14
Conclusion 14.2.1 is a stabilization point release for AE CC 2017 that focused on smoothing out early 14.0 issues while retaining the 2017 feature set. For reliable day-to-day motion graphics and VFX work, apply the performance and project-management practices above, keep drivers and plugins updated, and rely on proxies, precomps, and incremental saves to safeguard complex projects. Vector Speed Conclusion 14