Because official support ended at Android 4.2.2, you must use unofficial builds to get security patches and newer features:
Here are the most stable, actively maintained patched downloads as of 2025. All of these are unofficial (“patched”) versions that aim to replace the stock Samsung OS. patched download samsung tab 2 101 gtp5100 android patched
Have you successfully patched your GT-P5100? Share your experience in the comments below (but only after backing up your EFS partition!). Because official support ended at Android 4