If you're asking because you're trying to choose between this version and a newer one, I can: on older vs. newer computers.
Similar to Adobe Illustrator’s implementation, this tool enabled creating paths more intuitively.
Tools for selecting complex subjects, such as hair, were refined to offer greater precision and better edge detection.
The update included a dedicated "Learn" panel offering step-by-step tutorials directly within the application, assisting new users in understanding core tools. Context in 2022
Adobe enhanced performance for common tasks, including faster filter rendering and improved file launch times.
, particularly discussed in contexts referring to its stability around 2022, represents a pivotal, mature iteration of the industry-standard raster graphics editor. While Adobe shifted to newer subscription models, version 19.1.9 (released in early 2019 but part of the 2018 line) remains a favorite for users needing a robust, perpetual-style licensing experience on older machines or for specific workflow stability. Key Features and Improvements
Version 19.1.9 is renowned for its stability compared to the immediate shift toward the 2019 CC version, which was noted to have "major memory leaks" and "lags" for some users.
The software introduced capabilities to open and edit spherical panorama images. Performance and User Experience