There was strong speculation that PlayStation 4 firmware update v4.50 would roll out today, but the lack of a PlayStation Blog post always seemed suspect. Now Sony has clarified on its Ask PlayStation Twitter account, stressing that there's no official date for the upgraded system software announced yet. We'd have expected it to be available by now if it was dropping today.

This is obviously disappointing news, but given the anticipation surrounding the firmware update, it perhaps shows that Sony's got a winner on its hands. The upgrade includes anticipated features like external hard drive support, custom wallpapers, and – of course – PS4 Pro's hotly anticipated Boost Mode.

Update: Sony's announced that PS4 firmware update 4.50 will launch tomorrow, 9th March.