jQuery UI 最新稳定版 1.12.1 发布了。更新内容如下：

Core & Utilities

Widget Factory
Fixed: Memory leak and bad performance for managed classes on transient elements (#15043, 89af4c2)
Fixed: instance() should return undefined for empty sets (#15019, 3dd8a09)
Interactions

Draggable
Fixed: Incorrect focus handling on mousedown (#15046, 8c66934)
Sortable

Fixed: Calling cancel() throws an error (#15042, 19027bb，勤快学qkxue.net)
Widgets

Autocomplete
Fixed: JSONP demo does not work over HTTPS (#14974, 930934f)
Checkboxradio

Fixed: Label handling with jQuery 3.x (#15006, 55cd948)
Checkboxradio: Radio checkmarks are only visible on hover (#15003, 57537d0)
Controlgroup

Fixed: Handle child elements that don‘t have options defined (f67f929，网站建设ty300.com)
Dialog

Fixed: Support deprecated button options (#15016, 6c754b4)
Menu

Fixed: Support number pad keyboard input (#15031, ac9ca9e)
Slider

Added: Demo for custom handle (#15023, 51461d5)
详细更新列表：

http://jqueryui.com/changelog/1.12.1/
发行说明及下载地址：

http://blog.jqueryui.com/2016/09/jquery-ui-1-12-1/

jQuery UI 1.12.1 发布，最新稳定版