http://www.newsweek.com/destiny-2-203-126-fix-breytech-mod-glitch-patch-notes-1127061

Destiny 2 update 2.0.3 has arrived on PS4 as version 1.26, and the small download fixes critical bugs in the latest build of the Forsaken expansion. Sadly, those who were scoring easy weapon mods through a BrayTech glitch won’t be able to take advantage of it anymore. An official Bungie blog post has the full details.

The 'Destiny 2' mod glitch with the Mk II has unfortunately been patched in hotfix 2.0.3. Bungie/Activision