Elasticsearch Backward Compatibility

Developers hate it, users need it: Backward compatibility. Adding new features is great, but not gaining adoption of those, because your users are still stuck on the 2011 release that is riddled with bugs, will neither help your product, your users or your developers or support folks. Making sure that upgrades are smooth and backward compatible will help your users to stay up to date. This talk outlines the general Elasticsearch strategy when it comes to backward compatibility, including how deprecated features are handled and the migration from one date parsing and processing library to core java time.