Hi, It took me some time to find the upgrade (and update) manual for core from 1.2 to 1.3. Here it is: https://github.com/mootools/mootools-core/wiki/Upgrade-from-1.2-to-1.3
I think a link on the mootools website would be in place. Also is there any upgrade guide for more? I've noticed i.e. that Date.format is changed. Cheers. W.
