Long time since I did my last migration from Ajaxplorer to Pydio, but there was no known issue I can remember. Just yum update, and pydio will replace Ajaxplorer. Then you have to finish with signal-event webapps-update or post-upgrade + reboot
Then, depending on how you access it, you might need a few steps left:
- If you were using a vhost, you'll need to adjust the DocumentRoot from /usr/share/ajaxplorer to /usr/share/pydio
- If you were using the alias /ajaxplorer, it's now /pydio (you can create a custom template to add /ajaxplorer back)