The computer versions of Grand Theft Auto 3, Grand Theft Auto Vice City, and Grand Theft Auto San Andreas had many problems when they first came out. These issues happened because the developers reused old code and did not pay enough attention to PC computer ports. For a long time, a fan created modification called SilentPatch has solved many of these issues. Now, a massive update to this modification fixes even more hidden errors and restores content that was cut due to simple mistakes in the original programming code.One of the biggest changes in this update is the recovery of more than one hundred voice lines in Grand Theft Auto San Andreas. Many of these audio lines were broken under specific conditions. For example, speech lines spoken by Carl Johnson during gunfights only played if players used a controller. With this new update, those audio lines play correctly when players aim and fire using a computer mouse and keyboard.

Many other spoken lines that were previously impossible to hear are now fully functional. Pedestrians can now talk to each other about the weather, and criminals have special lines when running away from danger. Carl Johnson has new unique lines when taking over neighborhoods and during conversations with sex workers. Gang members have more taunts, and police officers now yell when they need cover fire or when they have a suspect surrounded. Store owners also have new reactions during robberies, including the owner of Ammu Nation who now has more than fifteen restored lines for these situations.

The update improves many other areas across all three classic titles. Visual effects such as lens flares and heat haze now scale properly on high resolution modern screens. Non player characters can use sniper rifles and rocket launchers correctly, and police officers no longer fire handguns sideways. Birds now spawn correctly in the sky, police roadblocks face the correct direction, and players can store boats inside garages without crashing the game.

The new patch also removes several very specific bugs that existed for years. A famous bug that turned the sky red at eight in the evening during rain storms has been fixed. Another error that caused an airplane to spawn inside a driveway in Fort Carson and explode immediately has also been resolved. In Grand Theft Auto 3, street gangsters now walk together in proper lines instead of wandering around and freezing in place, which fixes a problem that existed all the way back on the PlayStation 2 console version.