Batman: Arkham Knight has had a patch on Xbox One, PlayStation 4 and PC on the first day that it's been released.

Apparently, some of the retail copies of Batman: Arkham Knight's day one patch had been leaked and some of the users on Reddit began to post details and screenshots of the Day one patch.

The Batman: Arkham Knight Day One patch "1.01" weighs 3.527 gigabytes and carries several improvements and bug fixes. Some of these include improved performance and stability fixes.

There are also new features, such as rival points and original Batsuit skin available for players to select.

There is also support available for "A Matter of Family" additional content, as well as fixes for general gameplay, graphics, audio, UI and localization.

"A Matter of Family" is a prequel story downloadable content, which is included as a part of the batman: Arkham Knight forty dollar season pass.

The game was launched today, and players already have a good amount of criticism for it.

There has especially been poor reception of the PC version of the game, according to game developers Rocksteady Studios.

There have been several reports from players of poor performance and frame rate issues.

The frame rate, which is set to thirty frames per second, can be adjusted if a player knows how to access the .ini files.

However, the game is crashing for some players and stuttering for others.

Performance of the game as a whole, has been described as all over the board, regardless of the power of players' systems.

Surely, players will welcome this day one patch, as well as any fixes that it brings, along with any patches in future.