Finally had the chance to do some maintenance, so I have upgraded to the latest WordPress. The site appears to still be working, so it seems to have been a success so far.
I didn’t appear to have any errors during the upgrade, so will keep an eye on it in the meantime.
Upgraded Wordpress over the weekend. It seemed to upgrade without much issues, the only mistake was on my part in the options used to upload some files. So I fixed that and the upgrade then took place.
Finally native tag support, without the need to install a plug in to provide the tag functions. Very impressed, all I need to do now is do more work on the layout and other associated things. Don’t be surprised if it takes me a while.