This is the most common scenario for those searching for "Update Gta V 1.26 To 1.41". For those using a cracked version (usually FitGirl or RELOADED releases), updating must be done manually.
If you own the game via Steam, Epic Games, or the Rockstar Games Launcher, the platform should handle this automatically. If it stuck on 1.26, you must force a file re-verification. Update Gta V 1.26 To 1.41