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v0.8.18

snarktank/ralphv0.8.18Apr 16, 2026by gbj

AI Summary

This release improves the Leptos configuration API with new CSS path options, fixes critical circular reference issues in Actions, and enhances documentation for wasm32 builds.

Key Highlights

  • Implementation of `LeptosOptions::css_path`
  • Prevention of circular references in `Action` using `WeakOwner`
  • Extension of the `either` macro
  • Documentation for getrandom/rand setup on wasm32
  • Fix for invalid UTF-8 in paths

New Features

  • Implementation of `LeptosOptions::css_path`
  • Prevent circular reference in `Action`
  • Extend `either` macro
  • Fix for invalid UTF-8 in paths
  • Deriving `Patch` for `Store` improvements

Full Release Notes

## What's Changed
* doc(`leptos_config`): Improve docs readability; Add `# Errors` sections by @DanikVitek in https://github.com/leptos-rs/leptos/pull/4593
* feat(`leptos_config`): Implement `LeptosOptions::css_path` by @DanikVitek in https://github.com/leptos-rs/leptos/pull/4592
* fix: prevent circular reference in `Action` by using `WeakOwner` (closes #4602) by @gbj in https://github.com/leptos-rs/leptos/pull/4603
* Better implementation of `css_path` with that moved to `css_file_path` to better reflect/compliment underlying use cases by @metatoaster in https://github.com/leptos-rs/leptos/pull/4615
* feat: Extend either macro by @domwst in https://github.com/leptos-rs/leptos/pull/4613
* Update readme playground link to that of leptos.dev by @xiaogz in https://github.com/leptos-rs/leptos/pull/4625
* chore: update nightly toolchain and adjust trybuild stderr by @gbj in https://github.com/leptos-rs/leptos/pull/4626
* chore: actually test nightly in CI by @gbj in https://github.com/leptos-rs/leptos/pull/4637
* Fixes deriving `Patch` for `Store` where `store` attribute is being used. by @mskorkowski in https://github.com/leptos-rs/leptos/pull/4620
* Document getrandom/rand setup for wasm32 builds, closes #3979 by @ordokr in https://github.com/leptos-rs/leptos/pull/4648
* A few `Store` cleanup items by @gbj in https://github.com/leptos-rs/leptos/pull/4645
* Fix typo: occured -> occurred in leptos_config doc comment in https://github.com/leptos-rs/leptos/pull/4657
* fix: don't panic on invalid UTF-8 in paths (closes #4662) by @gbj in https://github.com/leptos-rs/leptos/pull/4663
* Deriving Store no longer generates warning about missing docs by @mskorkowski in https://github.com/leptos-rs/leptos/pull/4671
* chore(deps): bump pnpm/action-setup from 4 to 5 by @dependabot[bot] in https://github.com/leptos-rs/leptos/pull/4658
* feat(`either_of`): Add `Either!` convenience macro by @DanikVitek in https://github.com/leptos-rs/leptos/pull/4627
* chore: pull in latest `wasm_split_helpers` version by @gbj in https://github.com/leptos-rs/leptos/pull/4684

## New Contributors
* @xiaogz made their first contribution in https://github.com/leptos-rs/leptos/pull/4625
* @ordokr made their first contribution in https://github.com/leptos-rs/leptos/pull/4648

**Full Changelog**: https://github.com/leptos-rs/leptos/compare/v0.8.17...v0.8.18