jQuery 3.0 has been in the works since October 2014, and was initially created to complete version 2.0, and it’s mission to distant itself from the old 1.0 codebase, bloated because of all the IE workarounds. Version 2.0 was completely incompatible with version 1.0, and version 3.0 will continue on the path set by version 2.0. The jQuery Foundation says there are little breaking changes in 3.0, and that users should be able to migrate their code without too much work. Continue reading this press release here.