GTA Online, version 1.09, has eradicated a number of cash and player progression glitches, on top of strengthening overall anti-cheat measures in the online multiplayer side of GTA 5.
Rockstar hasn't said which exact exploits have been taken care of in the patch notes, nor has the studio offered any context. We've followed up with Rockstar for more information and will update this post accordingly.
Rockstar issued three updates to GTA Online throughout December. The first unlocked creation tools for deathmatch and race variants back on December 11. A week later, Rockstar added capture the flag and then, shortly after Christmas, Verified Jobs – special curated online match variants chosen by Rockstar itself. Co-op heists are due sometime later this year.