Sony today released a brand new mandatory firmware 4.55 for PlayStation 3. No official changelog was released and many PS3 owners started predicting that its just a stability update and without any new feature.
Few hours after the release of PlayStation 3 firmware 4.55, PlayStation Japan confirmed that the update just improves software stability. Please NOTE: PS3 firmware is mandatory, and so all PS3 owners should download and install it. If not, you won't be able to play online.
Any important change you observe after installing, PS3 firmware 4.55?, share it with us in the comment section below.