PS Vita firmware 1.67 available
A new firmware for PS Vita, version 1.67, is available today. Little is known about it, as no official announcement has been made by Sony so far.
Thanks to OMightyBuggy for the heads up!
Update: this firmware seems to be only containing a minor for Japanese game Dream Club Zero, according to psvitagen.fr. So, nothing really interesting. Thanks to pomopop for the tip.