Application Update

Game Update Checking
It is a bit upgraded but basicly the same as on PS3. Once a game tab is opened, the VITA downloads a PKG for this game tab. This includes update information, such as if an update if available. If thats the case, the game tab will show you a yellow arrow on the top of the screen which gives you information about the update available. This information is stored in XML's which are gathered via URL's like this example one:

http://gs.ww.np.dl.playstation.net/ppkg/np/PCSG00001/PCSG00001_T1/0101/c653f481544f8b19/changeinfo.xml

This is the content of this .xml:

   <![CDATA[ オンライン仕様に関わる動作の安定性を向上しました ]]>

This is the original update PKG link:

http://gs.ww.np.dl.playstation.net/ppkg/np/PCSG00001/PCSG00001_T1/c653f481544f8b19/JP0700-PCSG00001_00-RIDGERACERPSVITA-A0101-V0100-fd9baf01343b2db6df0d434b17ef822a9699c6da-PE.pkg

original link(SKFU BLOG)

changeinfo.xml
http://gs.ww.np.dl.playstation.net/ppkg/np/[TITLE_ID]/[TITLE_ID]_T[ONLINE_UPLOAD_VERSION]/[Version]/[An HASH]/changeinfo.xml

-ver.xml
to add