Sublime Text Build 4200 represents a significant milestone for the veteran text editor, not just for its technical refinements, but as a primary point of contact for many users with the company's updated licensing model. As users upgrade from previous builds, many are encountering the "LICENSE UPGRADE REQUIRED" notification for the first time.
Since the launch of Sublime Text 4, the developer (Sublime HQ) moved away from major-version-based licenses to a . How it Works: Sublime Forumhttps://forum.sublimetext.com License Upgrade Required Confusion - Sublime Forum
: A major shift began with this build to phase out Python 3.3 for plugins, moving toward Python 3.13 in future cycles.