After yesterdays mishap with the 1.65 Firmware Upgrade, PS Vita owners can now once again attempt to update their systems, this time to version 1.66.

RabidWalker over at the Official PlayStation Forums has posted some more details about the firmware that weren’t mentioned in the original blog post. The changes now officially are:

• [Notification Alert] setting added to Settings > [Sound & Display]
• [After 10 Minutes] option added to Settings > [Power Save Settings]
• An arrow icon is introduced to show when PS Vita finds new activities in LiveArea.
• The Caps Lock icon in the On-Screen Keyboard can now be fixed to allow a continuous string of upper case text.

Other features also included:

• The [System Music] setting in Settings > [Sound & Display] now affects BGM in PS Store, near and Sign-Up screens as well as the Home menu.
• When searching for location data, users now have the option to ‘Retry’ and ‘Cancel’ when a failure occurs.
• A progress bar is introduced for application installation.
• A direct link to PlayStation Store is made available for new applications that users may discover on near.
• Users can now update data at any time within near, provided they are within the same location.
• The display time of notification alerts has been reduced from 5 seconds to 3 seconds.
• Functional improvements have been made in the following games and applications: Unit 13, Gravity Daze, near.

Let us know your thoughts on the additional features in the comments section below.