The update successfully addressed the "buggy" reputation previous versions (v14.x) had developed. Editors reported fewer crashes and smoother scrubbing, particularly with RED and ARRI raw codecs.
Several obsolete audio effects (like Chorus, DeClicker, and DeNoiser) were removed and replaced by modern equivalents. adobe premiere pro 15 update
: You can now swap out specific media—like logos or even videos—within Motion Graphics templates directly in the Essential Graphics panel. adobe premiere pro 15 update
No update is perfect. Here are the from the v15 lifecycle (many fixed by 15.4): adobe premiere pro 15 update