what stackpulse tracks
Svelte releases from GitHub
StackPulse watches Svelte release notes and keeps the original source link close to every summary.
#stacks/svelte/framework
Svelte release notes, breaking changes, and upgrade notes.
Cybernetically enhanced web apps StackPulse turns upstream changelogs into scannable summaries with risky changes, deprecations, migration notes, and source links.
releases
14
breaking
0
security
0
deprecated
0
migrations
0
upgrade risk
Breaking changes and deprecations
Risky changes are separated from normal feature notes so you can scan upgrade impact before changing production dependencies.
migration notes
Source-backed next steps
Migration steps and recommended actions are only shown when the upstream release notes support them.
# latest_releases
source-backedsvelte@5.56.4lowJun 23, 2026
svelte@5.56.4
This patch release includes several bug fixes related to reactivity, TypeScript parameter handling, and URL search parameter notifications.
affected
Developers using `{@const}` declarators, reactivity contexts, or TypeScript optional parameters may be affected by these fixes.
action
Update to version 5.56.4 to benefit from the bug fixes.
svelte@5.56.3lowfeatureJun 7, 2026
svelte@5.56.3
This patch release addresses two issues: ignoring errors in destroyed effects and correctly typing BigInts in `$state.snapshot(...)` return values.
affected
Developers using `$state.snapshot(...)` with BigInts or handling destroyed effects may be affected.
action
Update to version 5.56.3 to benefit from the fixes.
svelte@5.56.2lowfeatureJun 4, 2026
svelte@5.56.2
This patch release includes several bug fixes addressing reactivity tracking, async component handling, and animation directive behavior.
affected
Developers using async components, reactivity, or animation directives may be affected by the fixed issues.
action
Update to version 5.56.2 to benefit from the bug fixes.
svelte@5.56.1mediumfeatureJun 1, 2026
svelte@5.56.1
This patch release focuses on fixing various bugs related to declaration tags, parsing robustness, and edge cases in Svelte's compiler.
affected
Developers using declaration tags or encountering parsing issues in Svelte may be affected.
action
Update to this version to benefit from improved parsing and bug fixes.
svelte@5.56.0mediumfeatureMay 29, 2026
svelte@5.56.0
This release introduces minor enhancements and several performance optimizations, including improved handling of declarations in templates and various internal optimizations for better efficiency.
affected
Developers using Svelte templates may benefit from the new declaration feature and performance improvements.
action
Update to version 5.56.0 to take advantage of the new features and performance optimizations.
release_signals
+Allow declarations in the template
svelte@5.55.10mediumfeatureMay 27, 2026
svelte@5.55.10
This patch release focuses on bug fixes and performance improvements, particularly around batch handling, async operations, and event propagation.
affected
Developers using async blocks, batch operations, or event delegation may be affected by these fixes.
action
Update to this version to benefit from improved stability and performance.
svelte@5.55.9lowMay 20, 2026
svelte@5.55.9
This patch release focuses on fixing several bugs related to promise handling, dependency deduplication, and SSR attribute values.
affected
Developers using `{#await}` blocks or SSR with Svelte may be affected by these fixes.
action
Update to version 5.55.9 to benefit from the bug fixes.
svelte@5.55.8lowfeatureMay 18, 2026
svelte@5.55.8
This patch release includes several bug fixes addressing issues with derived state, teardown effects, and context handling.
affected
Developers using derived state, teardown effects, or context handling in Svelte may be affected by these fixes.
action
Update to version 5.55.8 to benefit from the bug fixes.
svelte@5.55.7criticalMay 14, 2026
svelte@5.55.7
This release focuses on security improvements and bug fixes, including preventing XSS vulnerabilities in the `hydratable` feature and hardening regex patterns. Runtime properties have been moved to symbols for better encapsulation.
view source on github->svelte@5.55.6lowMay 14, 2026
svelte@5.55.6
This release focuses on bug fixes and minor improvements, particularly around handling promises, SSR, and state management. Several fixes address edge cases in async behavior and SSR context handling.
view source on github->svelte@5.55.5lowApr 23, 2026
svelte@5.55.5
This release includes fixes for derived state handling during effect updates and introstart event dispatching with animate directives.
view source on github->svelte@5.55.4lowApr 14, 2026
svelte@5.55.4
This release includes several bug fixes addressing issues with effect roots, context resetting, and eager effect flushing.
view source on github->svelte@5.55.3lowApr 10, 2026
svelte@5.55.3
This release focuses on bug fixes, including improvements to HMR updates for dynamic components, correct calculation of `@const` blockers, and deferred error boundary rendering in forks.
view source on github->svelte@5.53.11lowMar 12, 2026
svelte@5.53.11
This release focuses on bug fixes and minor improvements, addressing issues such as circular dependencies, effect tree corruption, and hydration batch resolution.
view source on github->