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Update dependency svelte to v4 - abandoned

renovate requested to merge renovate/svelte-4.x into main

This MR contains the following updates:

Package Change Age Adoption Passing Confidence
svelte (source) ^3.59.1 -> ^4.0.0 age adoption passing confidence

Release Notes

sveltejs/svelte

v4.0.0

Compare Source

Major Changes

  • breaking: Minimum supported Node version is now Node 16 (#​8566)

  • breaking: Minimum supported webpack version is now webpack 5 (#​8515)

  • breaking: Bundlers must specify the browser condition when building a frontend bundle for the browser (#​8516)

  • breaking: Minimum supported vite-plugin-svelte version is now 2.4.1. SvelteKit users can upgrade to 1.20.0 or newer to ensure a compatible version (#​8516)

  • breaking: Minimum supported rollup-plugin-svelte version is now 7.1.5 (198dbcf)

  • breaking: Minimum supported svelte-loader is now 3.1.8 (198dbcf)

  • breaking: Minimum supported TypeScript version is now TypeScript 5 (it will likely work with lower versions, but we make no guarantees about that) (#​8488)

  • breaking: Remove svelte/register hook, CJS runtime version and CJS compiler output (#​8613)

  • breaking: Stricter types for createEventDispatcher (see MR for migration instructions) (#​7224)

  • breaking: Stricter types for Action and ActionReturn (see MR for migration instructions) (#​7442)

  • breaking: Stricter types for onMount - now throws a type error when returning a function asynchronously to catch potential mistakes around callback functions (see MR for migration instructions) (#​8136)

  • breaking: Overhaul and drastically improve creating custom elements with Svelte (see MR for list of changes and migration instructions) (#​8457)

  • breaking: Deprecate SvelteComponentTyped in favor of SvelteComponent (#​8512)

  • breaking: Make transitions local by default to prevent confusion around page navigations (#​6686)

  • breaking: Error on falsy values instead of stores passed to derived (#​7947)

  • breaking: Custom store implementers now need to pass an update function additionally to the set function (#​6750)

  • breaking: Do not expose default slot bindings to named slots and vice versa (#​6049)

  • breaking: Change order in which preprocessors are applied (#​8618)

  • breaking: The runtime now makes use of classList.toggle(name, boolean) which does not work in very old browsers (#​8629)

  • breaking: apply inert to outroing elements (#​8627)

  • breaking: use CustomEvent constructor instead of deprecated createEvent method (#​8775)

Minor Changes

  • Add a way to modify attributes for script/style preprocessors (#​8618)

  • Improve hydration speed by adding data-svelte-h attribute to detect unchanged HTML elements (#​7426)

  • Add a11y no-noninteractive-element-interactions rule (#​8391)

  • Add a11y-no-static-element-interactionsrule (#​8251)

  • Allow #each to iterate over iterables like Set, Map etc (#​7425)

  • Improve duplicate key error for keyed each blocks (#​8411)

  • Warn about : in attributes and props to prevent ambiguity with Svelte directives (#​6823)

  • feat: add version info to window. You can opt out by setting discloseVersion to false in the compiler options (#​8761)

  • feat: smaller minified output for destructor chunks (#​8763)

Patch Changes

  • Bind null option and input values consistently (#​8312)

  • Allow $store to be used with changing values including nullish values (#​7555)

  • Initialize stylesheet with /* empty */ to enable setting CSP directive that also works in Safari (#​7800)

  • Treat slots as if they don't exist when using CSS adjacent and general sibling combinators (#​8284)

  • Fix transitions so that they don't require a style-src 'unsafe-inline' Content Security Policy (CSP) (#​6662).

  • Explicitly disallow var declarations extending the reactive statement scope (#​6800)

  • Improve error message when trying to use animate: directives on inline components (#​8641)

  • fix: export ComponentType from svelte entrypoint (#​8578)

  • fix: never use html optimization for mustache tags in hydration mode (#​8744)

  • fix: derived store types (#​8578)

  • Generate type declarations with dts-buddy (#​8578)

  • fix: ensure types are loaded with all TS settings (#​8721)

  • fix: account for preprocessor source maps when calculating meta info (#​8778)

  • chore: deindent cjs output for compiler (#​8785)

  • warn on boolean compilerOptions.css (#​8710)

  • fix: export correct SvelteComponent type (#​8721)

v3.59.2

Compare Source

  • Fix escaping <textarea bind:value={...}> values in SSR

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This MR has been generated by Renovate Bot.

Edited by renovate

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