`last_propagated_event` retains the last event's target subtree (detached DOM) until the next delegated event
sveltejs/svelte #18568
Total issues
20162017201820192020202120222023202420252026
Open issues
- Docs: Document the pattern for explicit dependency tracking across asynchronous boundariessveltejs/svelte #18565
- `effect_orphan` thrown when `$effect` is called after `await` inside an async function invoked even when inside of a tracking contextsveltejs/svelte #18443
- experimental.async: batch merging permanently swallows unrelated synchronous UI updates when an earlier async batch never settlessveltejs/svelte #18524
- Selection lost on <select> with spread attributes when options change after mountsveltejs/svelte #18557
- experimental.async: nested dynamic component mounts twice when swapped while a persistent ancestor renders the outgoing subtree's teleported snippetsveltejs/svelte #18554
- experimental.async: "Batch has scheduled roots" when a sibling mutates shared $state during a suspense-resolution flushsveltejs/svelte #18363
- `TypeError: value is not a function` on SSR when nested `{#snippet}` reads `{const x = $derived(await …)}` from parent snippet body via a sync `$derived`sveltejs/svelte #18469
- `SvelteMap.set` on an existing key notifies `keys()` readers even though the key set didn't changesveltejs/svelte #18531
- `flushSync()` errors when called at top level of script; doesn't work with `$effect.pre`sveltejs/svelte #18522
- $derived on a class instance returns a stale value after the effect that incidentally owned it at construction is destroyedsveltejs/svelte #18489
- A throwing $effect teardown during keyed {#each} reconcile strands the rest of the destroy batchsveltejs/svelte #18415
- Exception during a reaction update permanently leaks freshly-connected deriveds (survives unmount)sveltejs/svelte #18414
- $derived re-executes once per reading effect (memoization lost) when invalidated while another batch is pending (experimental.async)sveltejs/svelte #18503
- `$state` write in `@attach` click handler triggers `$effect` flush before delegated `onclick` — handler silently skippedsveltejs/svelte #18070
- Error thrown by a $derived re-executing during teardown escapes <svelte:boundary> (and can mask the real error via null effect.b)sveltejs/svelte #18485
- Function call in class: and style: directives are inconsistent with standard attributessveltejs/svelte #18465
- TypeScript error thrown when exported snippets reference a type of a script elementsveltejs/svelte #18451
- Using `vi.resetModules()` causes `lifecycle_outside_component` error in [email protected]sveltejs/svelte #16832
- Svelte 5: Avoiding `{#snippet}` boilerplate with the ability to pass parameterssveltejs/svelte #10678
- {#if}{/if} blocks may not properly guard against broken references when store subscriptions are involvedsveltejs/svelte #18377
- "Keyed each block has duplicate key" should be a warning rather than an error (at least on prod environment)sveltejs/svelte #18407
- Hydration mismatch with two components that internally use bind: and svelte:head (getAttribute is not a function / can't access property "nodeType")"sveltejs/svelte #18404
- getContext on a child component returns `undefined` when HMR is triggered with context in the parent's `context="module"` exportssveltejs/svelte #8655
- $derived returns wrong value in $effect.pre and attachment cleanup during unmountsveltejs/svelte #18391
- Svelte boundaries with failed snippets not working as expected with Remote Functionssveltejs/svelte #18399
- Effect scheduled for batch A can be executed by batch B, causing wrong valuessveltejs/svelte #18374
- `$state.eager` doesn't work with `{#if ...}`, and `$state.eager(var)` affects plain `var` usagesveltejs/svelte #18174
- shorthand properties for touch don't throw if they don't exist inside svelte:windowsveltejs/svelte #18275
- [2.60.1] Multiple remote functions inside one `<svelte:boundary>` don't run in parallelsveltejs/svelte #18270
- `{#if a.deep != null}` runs when `a.deep` is null if used as a transition parametersveltejs/svelte #15627
- each_key_duplicate triggers a 1000+ error recovery cascade that wedges the app under experimental.asyncsveltejs/svelte #18164
- Production: {@attach} with no-default prop silently breaks component reactivity in keyed {#each}sveltejs/svelte #18149
- Svelte Adding class="<svelte-component-identifier>" to meta/link/script tags in the <svelte:head></svelte:head>sveltejs/svelte #17223
- Detached DOM subtrees retained after destroy when templates capture multiple nodes (parentNode chains)sveltejs/svelte #18096
- Inconsistent behavior between data = await returnData() and data = data (state_unsafe_mutation)sveltejs/svelte #18121
- Memory leak: `$effect` subscribing to parent prop retains detached DOM trees after component destructionsveltejs/svelte #18103
- animate:flip breaks hover/hit testing in Safari when animated elements are above a fixed painted overlaysveltejs/svelte #18000
- When using the spread attribute in the option tag, the bind:value of the select tag exhibits strange behavior.sveltejs/svelte #17395
- Lifecycle events don't run for components inside `svelte:boundary` pending snippet with `experimental.async: true`sveltejs/svelte #17356
- `state_descriptors_fixed` error when testing writable with nested data structure and Immersveltejs/svelte #17845
- Possible incorret behavior when non-reactive variable is binded to a componentsveltejs/svelte #17609
- Options of `<select multiple={true}>` have incorrect `selected` property valuesveltejs/svelte #17280
- Nested deriveds for nested state changes and invalid `state_referenced_locally` warningsveltejs/svelte #17602
- Filename based cssHash values (the default now) may not be unique in MFE situations.sveltejs/svelte #17558
- 💀 Mixing legacy (which is default if not using runes) and runes can hang the browsersveltejs/svelte #17390
Total PRs
20162017201820192020202120222023202420252026
Open PRs
- fix: call `onerror` and provide a working `reset` when hydrating a failed boundarysveltejs/svelte #18556
- fix: in non-async mode, only push variable to current_sources when active_reaction is updatingsveltejs/svelte #18550
- fix: force the first run innerText/innerHTML/textContent written for content_editable_bindsveltejs/svelte #18536
- fix: don't notify `SvelteMap` key trackers when an existing key's value is setsveltejs/svelte #18532
- fix: don't resurrect outroing elements when an ancestor block is paused and resumedsveltejs/svelte #18431
- feat: support `using`, link top-level `using` declarations in components to lifecyclesveltejs/svelte #16192
- fix: warn on undeclared shorthand event handlers on svelte:window/document/bodysveltejs/svelte #18480
- fix: do not connect dependencies of an unconnected derived during init-time readssveltejs/svelte #18424
- fix: preserve nullish option values when using spread attributes on `<option>`sveltejs/svelte #18426
- fix(migrate): prevent magic-string crash with @component comment + export aliassveltejs/svelte #18403
- fix: too complex type error when using union props type by handling unions in Bindings genericsveltejs/svelte #17348
- fix: don't delegate events on custom elements, solve edge case stopPropagation issuesveltejs/svelte #14913