I upgraded SiO this morning. The Drupal team released version 5.3 last night. This version fixes some security issues and a few bugs. If you are nervous about upgrading, you can apply the security patches. There are five of them though, so it might be worth your while to do the full update and be done with it. If you'd rather just pay someone to handle it for you, drop me a line. I have 5 or 6 sites left to do today, but I can probably squeeze in time for a few more.
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