Posted: 02-09-2018 12:57 PM
Source: https://www.psxhax.com/threads/ps-vi...y-sharun.4228/
Summary:

PlayStation Vita developer Y-sharun released via Twitter a PS Vita PUP Extractor utility to extract update files from PUP files alongside the source code today...

PS Vita PUP Extractor with Source Code Released by Y-sharun