PlayStation Vita System Software Ver. 1.51 December 27th, 2011 / Niraj Shah / PS Vita Firmware 0 Security System software stability during use of some features has been improved. Game Compatibility with “NEXT Dynasty Warriors” has been improved. This update was released in Japan only. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Firmware, PlayStation Vita