Bug Fixes

• controller: add null type (3177936), closes #6505
• controller: prevent controlled swipers from being called when destroyed (#6501) (a266b78), closes #6491
• mousewheel: Initialize lastClickTime to very old time (#6497) (0983ded), closes #6496
• pagination: fix pagination.d.ts render functions return types (#6499) (34973a1)
• zoom: fix zoom out on double tap on sensitive touch screens (7f5c626)
• zoom: reset transform origin on zoom out (7f7f57e)

Features

• core: lazyPreloadPrevNext option to preload prev/next images (#6544) (1cb3233)
• lazyPreloadPrevNext option to preload prev/next images (6d08635)
• zoom: highly improve pinch-zoom gestures handling (6016a50)