All issues

Svelte 5: List of libraries not working out of the box
#10359 · dummdidumm opened on Feb 1, 2024
80

`last_propagated_event` retains the last event's target subtree (detached DOM) until the next delegated event

#18568

· randalmurphal opened

on Jul 21, 2026

Docs: Document the pattern for explicit dependency tracking across asynchronous boundaries

#18565

· harrmitch opened

on Jul 19, 2026

Track pause ownership so outro walks can't undo each other

#18563

· Nic-Polumeyv opened

on Jul 18, 2026

Selection lost on <select> with spread attributes when options change after mount

#18557

· b-r-i-a-n-w-e-s-t opened

on Jul 17, 2026

A `<svelte:boundary>` hydrated in the failed state can never be reset

#18555

· Nic-Polumeyv opened

on Jul 17, 2026

experimental.async: nested dynamic component mounts twice when swapped while a persistent ancestor renders the outgoing subtree's teleported snippet

#18554

· Nic-Polumeyv opened

on Jul 17, 2026

`flushSync()` inside a render-phase effect can permanently kill the effect tree

awaiting submitter

#18546

· Deeds67 opened

on Jul 14, 2026

`SvelteMap.set` on an existing key notifies `keys()` readers even though the key set didn't change

#18531

· Nic-Polumeyv opened

on Jul 10, 2026

experimental.async: batch merging permanently swallows unrelated synchronous UI updates when an earlier async batch never settles

#18524

· reinhard-sanz opened

on Jul 10, 2026

`flushSync()` errors when called at top level of script; doesn't work with `$effect.pre`

#18522

· jacekalms opened

on Jul 10, 2026

$derived re-executes once per reading effect (memoization lost) when invalidated while another batch is pending (experimental.async)

#18503

· billpeet opened

on Jul 4, 2026

$derived on a class instance returns a stale value after the effect that incidentally owned it at construction is destroyed

#18489

· reinhard-sanz opened

on Jun 30, 2026