[xwiki-users] Compatibility Issues

Hello XWiki Team, I have installed XWiki Enterprise to use for my company's internal collaboration and documentation; I liked it especially for its UI which is far superior to other extendable wikis. While adding components and customizing it I have noticed that there is a tendency to change the software without much concern for backward compatibility. For example the macro syntax changes with 1.6 makes multiple macros that were previously written incompatible (I was particularly interested in the Jira one). I am concerned that if I want to upgrade at some point, the customizations I have made using the published API will not work and cause heartache. Maintaining backward compatibility is not necessarily easy, but I am curious whether there is a philosophy of weighing new features higher than supporting existing ones. This would help me know what to expect in regards to how much maintenance work I would need to put in over the wiki's lifespan. Thanks, Regan Gill