npm / vue-tsc

vue-tsc

What changed in vue-tsc 3, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-18.

8 breaking1 security3 deprecations3 new APIs and options2 performance3 behavior and defaults34 tooling50 fixes and other

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@unstale/cli on npm

vue-tsc 3104 changes

Breaking changes 8

Stops component-meta from checking JavaScript Vue files as TypeScript.
3.3.12release notes
Overrides the inherited plugin list instead of being deduplicated during resolution.
3.3.12release notes
class and style are no longer treated as boolean properties.
3.3.4release notes
Slot props are camelized regardless of the htmlAttributes option.
3.3.4release notes
Plugin configs are now placed under ctx.config.
3.2.4release notes
Prioritizes non-warning completion entries over warning entries.
3.2.0release notes
Narrows component and directive types, affecting the types available when using them.
3.2.0release notes
Removes the ComponentType helper.
3.2.0release notes

Security 1

Improved handling of untrusted Vue files.
3.3.12release notes

Deprecations 3

The allCodeFeatures API is deprecated as code features are centralized.
3.3.6release notes
Deprecates the forceUseTs option.
3.2.0release notes
Deprecates the noDeclarations option.
3.2.0release notes

New APIs and options 3

Makes the VS Code welcome page configurable.
3.3.11release notes
Language plugins can now be configured.
3.2.3release notes
Adds tags to slot metadata.
3.2.0release notes

Performance 2

Reduces focus mode overhead in the VS Code extension.
3.3.12release notes
A subset of template node transforms was rewritten for performance.
3.2.9release notes

Behavior and default changes 3

Already-set props are excluded from inherited attrs only when this option is enabled.
3.3.4release notes
Document symbols use the default HTML data provider.
3.2.5release notes
Object keys are inferred as strings when they do not extend string.
3.2.3release notes

Tooling 34

Infers the first parameter type of a default factory for defineModel.
3.3.12release notes
Supports calling template bindings without .value.
3.3.12release notes
Generates full fragment props for type checking.
3.3.11release notes
Different extension sets across project references are supported.
3.3.10release notes
Checks unused generic type parameters.
3.3.9release notes
Upgrade to TypeScript 7 and support @typescript/typescript6.
3.3.8release notes
Support vapor directives in language-core.
3.3.8release notes
Setup bindings are included as potential component names.
3.3.6release notes
Hints for destructured props respect variable hoisting.
3.3.4release notes
Duplicate event listeners are detected across name formats.
3.3.4release notes
Preserves literal types for inline v-for sources, allowing their literal types to remain available to type checking.
3.3.2release notes
Gets component prop details from symbols.
3.3.1release notes
Skips unchecked JS identifiers.
3.3.1release notes
Includes extraFileExtensions in the tsserver configure request payload.
3.3.0release notes
Props completion follows TypeScript behavior, filters fallback global completions, and returns props only for component nodes.
3.3.0release notes
Adds checks for required fallthrough attributes.
3.3.0release notes
Navigation now works for kebab-case declarations in GlobalComponents.
3.2.8release notes
SCSS @import navigation now supports TypeScript module resolution.
3.2.8release notes
Uses a regex for TypeScript extension patching to support VS Code 1.110+.
3.2.6release notes
Type annotation is now supported via generics.
3.2.4release notes
Quick info is forwarded only for original results without tags.
3.2.3release notes
Completion edits for boolean props strip ="".
3.2.2release notes
Avoids duplicate directive modifiers in completion.
3.2.2release notes
Pre-maps the HTML to Pug offset attribute.
3.2.2release notes
Quick info and suggestion diagnostics are forwarded only for setup bindings.
3.2.2release notes
Corrects code features on v-bind shorthands of special attributes.
3.2.2release notes
Shorthand props are shown only when no prefix has been typed.
3.2.1release notes
Handles type imports in component auto-import.
3.2.0release notes
Handles import type nodes in the definition proxy.
3.2.0release notes
Adds tags to exposed metadata.
3.2.0release notes
Renaming global components now includes end tag locations.
3.2.0release notes
Supports markdown JSDoc for rich hover message descriptions.
3.2.0release notes
Adds rich hover messages in the language service.
3.2.0release notes
Adds support for the  magic comment.
3.2.0release notes

Fixes and other changes 50

Avoids calling registerHooks on buggy Node versions.
3.3.13release notes
Setup macros are generated without static imports.
3.3.13release notes
Reports duplicate CSS module names, including names that are not identifiers.
3.3.12release notes
Checks directive bindings with short arity by padding directive hook signatures.
3.3.12release notes
Prevents typedef JSDoc from leaking into emitted declaration files.
3.3.12release notes
Continues reference span fix-up when files have no styles.
3.3.12release notes
Corrects template mapping boundaries and eliminates unmapped diagnostics.
3.3.12release notes
Prevents watch mode from crashing on incremental builds.
3.3.12release notes
Preserves union props when using withDefaults.
3.3.12release notes
Invalidates module resolution caches when files are deleted.
3.3.11release notes
Invalidates casing detection after template changes.
3.3.11release notes
Trailing whitespace after generic parameter commas is ignored, preventing it from affecting type analysis.
3.3.10release notes
SFC blocks are no longer extracted across inline Markdown code.
3.3.10release notes
The item type is resolved over generic sources, improving type inference for v-for items.
3.3.10release notes
Preserves trailing and current directive modifiers when completing inside a directive and when filtering duplicates.
3.3.9release notes
Single-expression event handlers are wrapped to avoid automatic semicolon insertion after return.
3.3.7release notes
Const globals are filtered from template completions.
3.3.7release notes
Event handler expressions are treated as compound more accurately, preserving return types.
3.3.6release notes
Inference is made type-safe across the .d.ts boundary.
3.3.6release notes
CSS v-bind parsing now matches upstream behavior.
3.3.6release notes
Duplicate listener checks now include event modifiers and raw event parts.
3.3.5release notes
Prevents grammar scopes from leaking in capitalized tags.
3.3.3release notes
Preserves TypeScript auto imports behavior in Vue files.
3.3.3release notes
Aligns identifier skipping for v-bind shorthand with interpolation.
3.3.2release notes
Avoids reporting an extraneous children error for conditional slots.
3.3.1release notes
Resolves the TypeScript plugin path from the resolved server path.
3.3.1release notes
Completion edits strip ="" only for plain boolean props, and the default data provider is reset after using the Vue data provider.
3.3.0release notes
Re-supports html.customData for supplying custom HTML data.
3.3.0release notes
Avoids infinite diagnostics on Vue files when project diagnostics is enabled.
3.3.0release notes
Root-node collection now penetrates v-if branch fragments, improving single-root detection.
3.3.0release notes
File rename edits are triggered when moving folders with Vue files.
3.2.9release notes
Inline markdown syntax is no longer processed in semantic-aware segments.
3.2.9release notes
Generates the $slots type correctly in templates when using defineSlots.
3.2.6release notes
Avoids false positives when detecting destructured props on binding property names.
3.2.6release notes
Infers only the readonly component of arrays in v-for.
3.2.6release notes
Backtick attributes containing both quote types are handled.
3.2.5release notes
The template is re-parsed when interpolation syntax breaks.
3.2.5release notes
Using defineModel in lang="js" no longer breaks the AST.
3.2.3release notes
Indentation for <style> and <script> tags is corrected.
3.2.3release notes
Rename behavior is corrected for same-name shorthands in templates.
3.2.3release notes
Strings are no longer used with yield*.
3.2.3release notes
Provides accurate mapping for Pug shorthands.
3.2.2release notes
Schema resolution is skipped correctly when option is false.
3.2.1release notes
Array types are now inferred in v-for.
3.2.1release notes
Finding references to CSS classes now includes the leading dot.
3.2.0release notes
Filters irrelevant properties from exposed metadata.
3.2.0release notes
Fixes a missing module error that occurs after a file rename.
3.2.0release notes
Correctly resolves <script src=""> references.
3.2.0release notes
Aligns the v-for key type with Object.keys.
3.2.0release notes
Reverts an overcorrection in v-for type inference, changing the types inferred for v-for expressions.
3.2.0release notes