On almost every topic

In this extensive post Mike Hatfield shares new features and changes in the design of Alfresco Share’s Document Library. I am especially happy that there are quite some features that will make customizing the Document Library easier. Currently you need to copy a lot of files and do stuff in multiple files in order to do customizations that are easy to do in the old Explorer interface.

For custom actions it looks like you still need to code the evaluator in Java. I have no problem with coding in Java, but I never understood this part. You can write custom actions in JavaScript, but in order to control when the action is active you need to write some Java.