I've been running some test upgrades of 2014 toolboxes to 2015 using the manual upgrade method. I'm getting everything to complete successfully and running the final step (sldtoolboxupdater) upgrades the toolbox to 1801 and touches every file in the browser directory, but if I actually open any of the files it tells me they are old version. I've tried this on an EPDM toolbox and a local toolbox and get the same results with either. If I add a new, non-existing configuration to a toolbox component then it saves the file in the 2015 format. I don't know if this is expected behavior, or a bug with the 2015 upgrade and I haven't been able to find any documentation either way, but if it's not supposed to version upgrade the files then what exactly is it doing when it touches every file?