This new version allows for "Editor Chains" chains to embedded inside "Action Chains" chains. So instead of having two chains, you only need one chain. This
example used to have two chains, where you have to import one into "Action Chains" plugin and the other into "Editor Chains" plugin, but now it is replaced by one chain that contains both.
Note that embedded chains will not be available in "Editor Chains" menus. If you want them there, there is the possibility to export them from within "Action Chains".