v14.2.0

nolimits4web/swiperv14.2.0Aug 26, 2026by nolimits4web

AI Summary

This release focuses on stability improvements and security hardening, specifically targeting loop logic, RTL support, and prototype pollution risks. It introduces new transition modes for the fade effect and a configuration option to bypass built-in lazy loading.

Key Highlights

Security hardening: Added protection against prototype method overrides in the `extend()` function.
New transition mode: Added 'out-in' mode to the fade effect.
RTL fix: Improved RTL translation handling during direction changes.
Loop buffer fix: Corrected loop buffer sizing based on actual offset width.
Lazy loading control: New parameter to disable built-in lazy loading.

New Features

Added 'out-in' transition mode to the fade effect.
Added `lazyPreload` parameter to disable built-in lazy image handling.
Improved RTL translation recomputation in `changeDirection`.
Fixed loop buffer sizing to use actual offset width.

Full Release Notes

### Bug Fixes

* **cards:** prevent invalid calc() transform with low perSlideOffset ([d8ff235](https://github.com/nolimits4web/Swiper/commit/d8ff2350d215580da052e3fd1fc39b55e0af9a99)), closes [#8211](https://github.com/nolimits4web/Swiper/issues/8211)
* **core:** do not emit index-change events from loopFix teleports ([#8015](https://github.com/nolimits4web/Swiper/issues/8015)) ([9b78f71](https://github.com/nolimits4web/Swiper/commit/9b78f71ac271d71a8811011dbb86d058d7ac5e2a))
* **core:** harden extend() against prototype-method override in key filtering ([93154fc](https://github.com/nolimits4web/Swiper/commit/93154fc3d793f9f44c7c987a53091fe36fc82e74)), closes [#8189](https://github.com/nolimits4web/Swiper/issues/8189)
* **core:** recompute rtlTranslate in changeDirection ([#8053](https://github.com/nolimits4web/Swiper/issues/8053)) ([b4b49bf](https://github.com/nolimits4web/Swiper/commit/b4b49bf33717b021ffdf63c45caa24cd351699f9))
* **core:** size loop buffer from actual offset width, not centeredSlides geometry ([#8203](https://github.com/nolimits4web/Swiper/issues/8203)) ([bc4a658](https://github.com/nolimits4web/Swiper/commit/bc4a6588a81d3c5c2ea9ae345eba35fc3f1ed3d9))

### Features

* **core:** add lazyPreload param to disable built-in lazy image handling ([#7570](https://github.com/nolimits4web/Swiper/issues/7570)) ([81345db](https://github.com/nolimits4web/Swiper/commit/81345db82559f3dda08da1e3bcb575026e913e24))
* **fade:** add fadeEffect "mode" param with new "out-in" transition mode ([#8051](https://github.com/nolimits4web/Swiper/issues/8051)) ([b907702](https://github.com/nolimits4web/Swiper/commit/b9077025f6ce2a6c78d43f4969d990ffd9868de6))