0.7 will contain some new meta-data information in bitcoin-qt.exe but will lack version information until we can auto-update this information during the build process. I have a pull-request open for a manual solution, which won't make it to current master though.
https://github.com/bitcoin/bitcoin/pull/1683Edit: I think your point that security-scanners like Secunia rely on version information is a rather good one, thanks
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Dia