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withDefaults default value ignored when prop is passed as attribute without value, and result depends on type order

Status: Open.

#15087 In vuejs/core;

· hendCode opened on Jul 15, 2026

EffectScope stop() causes runtime crash (Cannot read properties of undefined) when dynamic scope cleanup mutates parent.scopes array during traversal

🔨 p3-minor-bugPriority 3: this fixes a bug, but is an edge case that only affects very specific usage.Priority 3: this fixes a bug, but is an edge case that only affects very specific usage.

scope: reactivity

Status: Open.

#15083 In vuejs/core;

· Askerka00 opened on Jul 14, 2026

SSR hydration warning: dynamic props on SVG elements are patched as properties instead of attributes

🔨 p3-minor-bugPriority 3: this fixes a bug, but is an edge case that only affects very specific usage.Priority 3: this fixes a bug, but is an edge case that only affects very specific usage.

regression

scope:hydration

Status: Open.

#15081 In vuejs/core;

· rebeccarich opened on Jul 14, 2026

SSR memory leak after a render error in a dynamic component

🔨 p3-minor-bugPriority 3: this fixes a bug, but is an edge case that only affects very specific usage.Priority 3: this fixes a bug, but is an edge case that only affects very specific usage.

Status: Open.

#15070 In vuejs/core;

· cernymatej opened on Jul 11, 2026

Scoped slot transforms array argument if rendered conditionally

🔨 p3-minor-bugPriority 3: this fixes a bug, but is an edge case that only affects very specific usage.Priority 3: this fixes a bug, but is an edge case that only affects very specific usage.

scope: compiler

Status: Open.

#15048 In vuejs/core;

· Truevoly opened on Jul 6, 2026

Function refs on components are invoked before exposed template refs become available since 3.5.39

🔨 p3-minor-bugPriority 3: this fixes a bug, but is an edge case that only affects very specific usage.Priority 3: this fixes a bug, but is an edge case that only affects very specific usage.

regression

Status: Open.

#15039 In vuejs/core;

· aibayanyu20 opened on Jul 2, 2026

v-model on <select multiple> uses stale collection type after switching between Array and Set

🔩 p2-edge-case

Status: Open.

#15009 In vuejs/core;

· zongxi1115 opened on Jun 25, 2026

Using v-for on an object with key/value, the key is typed as number

scope: playground

Status: Open.

#14910 In vuejs/core;

· mbergen opened on Jun 3, 2026

reactive silently skips un-extensible objects, which seems undocumented and unnecessary

has workaroundA workaround has been found to avoid the problemA workaround has been found to avoid the problem

🔩 p2-edge-case

Status: Open.

#14893 In vuejs/core;

· edave64 opened on May 30, 2026

[runtime-vapor] UI does not update correctly when reactive data changes

need discussion

scope: vaporrelated to vapor moderelated to vapor mode

Status: Open.

#14787 In vuejs/core;

· Kaidesuyoo opened on May 7, 2026

Compiler errors out on complex types

scope: sfc

Status: Open.

#14728 In vuejs/core;

· cosmincartas opened on Apr 15, 2026

Second instance of a duplicate component VNode isn't rendered on the client-side when using SSR

has workaroundA workaround has been found to avoid the problemA workaround has been found to avoid the problem

scope: ssr

🔩 p2-edge-case

Status: Open.

#14635 In vuejs/core;

· cernymatej opened on Mar 26, 2026