We updated the translations and fixed two serious-enough-to-be-showstopper bugs, and 0.6 release candidate 6 is available at:
https://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.6.0/
The two bugs (both caused by changes between release candidates 4 and 5, of course!) were:
1. Creating over a gigabyte of transaction logs during initial blockchain download. You should now see both a fast download and no more than 120MB of log files created.
2. A few people upgrading from previous releases couldn't get past the 'loading addr.dat' phase of startup.
I hope to repackage this as the final 0.6.0 release tomorrow; if you can help sanity test, please do!