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v12.1.0

nolimits4web/swiperv12.1.0Jan 28, 2026by nolimits4web

AI Summary

v12.1.0 introduces new keyboard navigation capabilities and a snapToSlideEdge parameter while fixing multiple bugs across autoplay, virtual slides, CSS mode, and zoom functionality. This release enhances both navigation control and stability.

Key Highlights

  • Added custom speed parameter support for keyboard navigation
  • New snapToSlideEdge parameter for slide snapping control
  • Fixed autoplay custom delay percentages with pause/resume
  • Fixed CSS mode support for slidesOffsetBefore and slidesOffsetAfter
  • Fixed lazy preloader removal error in React and Vue

New Features

  • Keyboard navigation now supports custom speed parameter
  • New snapToSlideEdge parameter for edge snapping behavior

Full Release Notes

### Bug Fixes

- **autoplay:** broken custom delay percentages with pause/resume ([#8133](https://github.com/nolimits4web/Swiper/issues/8133)) ([0afecde](https://github.com/nolimits4web/Swiper/commit/0afecde9781268a60a92f752ea3a3a92420e2dcf))
- **core:** Don't use `data-swiper-slide-index` for `realIndex` when virtual module is enabled ([#8142](https://github.com/nolimits4web/Swiper/issues/8142)) ([bd957f8](https://github.com/nolimits4web/Swiper/commit/bd957f8396f711b83dc1bc6b3d42a59e6d6539d2))
- **core:** Escape all CSS selector special characters ([d35f41a](https://github.com/nolimits4web/Swiper/commit/d35f41a85bd1793de58358d06300440e09187a6d)), closes [#8135](https://github.com/nolimits4web/Swiper/issues/8135)
- **core:** support slidesOffsetBefore and slidesOffsetAfert in cssMode ([45b98d0](https://github.com/nolimits4web/Swiper/commit/45b98d02b2235b0c425f8bd60ebdc04d7b1a4fbd)), closes [#7926](https://github.com/nolimits4web/Swiper/issues/7926)
- fix lazy preloader removal error in react in vue ([332f5c7](https://github.com/nolimits4web/Swiper/commit/332f5c77005921c8a260f199cdfe6d3aa5d209a1)), closes [#8149](https://github.com/nolimits4web/Swiper/issues/8149)
- **thumbs:** update slide classes on virtual swiper update ([#8141](https://github.com/nolimits4web/Swiper/issues/8141)) ([9752771](https://github.com/nolimits4web/Swiper/commit/975277111b73f389043cb0ed19feee0244a80f57))
- **types:** Add `autoScroll` to `thumbs.update` type signature ([#8146](https://github.com/nolimits4web/Swiper/issues/8146)) ([5d91e6e](https://github.com/nolimits4web/Swiper/commit/5d91e6edb4ce35d70019616b51f1e380feb9a082))
- **zoom:** initialize gesture state after programmatic zoom ([#8112](https://github.com/nolimits4web/Swiper/issues/8112)) ([71e9511](https://github.com/nolimits4web/Swiper/commit/71e9511802c34482bc8b66abda19a1a518d88d36))

### Features

- **keyboard:** add support for custom speed parameter in keyboard navigation ([#8148](https://github.com/nolimits4web/Swiper/issues/8148)) ([7a4a0e5](https://github.com/nolimits4web/Swiper/commit/7a4a0e5fc3c85710a37ab021328e083fc3b14e16))
- new snapToSlideEdge parameter ([de3131f](https://github.com/nolimits4web/Swiper/commit/de3131fbf72cccbf1d1473f787ddf15c74612584)), closes [#8021](https://github.com/nolimits4web/Swiper/issues/8021) [#4780](https://github.com/nolimits4web/Swiper/issues/4780)