The answer is two-fold. First, Red Dead Online still has a dedicated community of tens of thousands of daily players. The update specifically targets exploits that allowed cheaters to corrupt other players' save files.
that have become notable within the PC community, particularly for those using third-party repackaged versions like those from FitGirl Repack DODI Repack Overview of Build 1491.50 red dead redemption 2 update 131123 149150 link
“Ah, the 131123 update,” Mira said warmly. “You’ve seen the ghost number too—149150. That’s not a second update, Alex. That’s the internal manifest size. Rockstar repackaged the entire streaming asset system.” The answer is two-fold
These platforms will automatically queue the latest update (Build 1491.50 or higher) as soon as you launch the client. that have become notable within the PC community,
: The community on Reddit is very active and often discusses updates, changes, and fixes. You can post a query there with the update numbers you've mentioned to see if any community members have information.