I have just changed from 9's to 10's and was wondering if there are any changes to the truss rod that need doing? Personally i think that its fine, its just that im a bit paranoid that through time the neck will bow. Advice much appreciated ;]
It might bow, but it won't be like, 45 degrees.

If it's fine in a week, leave it.
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Shouldn't need too much adjusting. As said, if it's fine after a week, leave it.
You can use the checking method specified in the guitar setup guide, but it shouldn't make a huge difference overall. It's only really bad if you have a Floyd Rose.
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If you don't have a vibrato system you are fine. I went from 9's to 10's on my guitar and the only thing that needed adjusting was my calluses.