分类：Version 1.11 & 2.1

Some APIs may have changed since these versions were released. If using either version, find out about our version support.

All the aspects of the API that were added, or had a new signature added, in the corresponding version of jQuery.

Changes in jQuery 1.11 and 2.1 include lower startup overhead & fewer forced layouts; jQuery is now authored via AMD and published to npm & bower under the name jquery.

For more information, see the Release Notes/Changelog.