Sony Corp. this week said it will release System Software Update 4.21 for the Playstation 3 soon.
Update 4.21 is said to be an optional release that will improve software stability.
Sony in July released firmware update 4.20 to improve sidetone audio performance for the Wireless Stereo Headset in multiplayer modes. The update will allow users to select one of five levels for microphone audio or turn off the feature.
In addition, the update will allow users to set the amount of time the system will wait before turning itself off automatically.
In Feb. Sony released PS3 Firmware Update 4.10. The new software update changed the Playstation Network account name to the Sony Entertainment Network.
In addition, the update offered improvements to the PS3 Internet Browser.
The release was followed by Firmware 4.11, an optional firmware update said to improve certain aspects of system software.