slick Files

Slick 2.0 is compatible with jQuery 4. This is a major release because it migrates off jQuery APIs that were removed in jQuery 4 and drops some long-obsolete CSS/font support.

⚠️ jQuery 4 compatibility (breaking)

• Replaced jQuery APIs removed in v4:
• $.isArray(...) → Array.isArray(...)
• .focus() event-trigger shorthand → .trigger('focus')
• Rewrote the UMD / CommonJS module wrapper for robust loading — jQuery is now required lazily and it no longer assumes a window (safer for SSR / non-browser environments).

Fixes

• Focus/blur handling rewritten: focus.slick and blur.slick are now separate handlers and no longer call stopImmediatePropagation(), so focus events propagate to other listeners (#2901).
• Fixed misplaced .slick-active class when centerMode: true and total slides ≤ slidesToShow (#4065).
• Fixed centering logic when using swipe.
• Cloned slides now use .removeAttr('id') instead of .attr('id', ''), avoiding empty/duplicate id attributes.
• Corrected the counter in the dots buttons' aria-label.
• Fixed slick-image-url / SCSS url interpolation and a wrong-quotes @charset.

Styling & assets

• Cleaned up transform properties: unprefixed, unitless 0, consistent translate / translate3d spacing.
• Removed poorly-supported CSS: -webkit- font smoothing and vendor-prefixed visibility handling.
• Dropped SVG font support (no longer needed); added woff2 font + font stacks and font-display: swap.
• Drag cursor now uses grab / grabbing.
• Allow text selection when the slider is not draggable (#3112).

Full Changelog: https://github.com/kenwheeler/slick/compare/v1.8.1...v2.0.0