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statelyai/xstate

xstate@5.33.4

Curated state management / ai tools / ai-agent repository (statelyai/xstate) tracked via conditional GitHub .atom polling.

COMPATIBLE
What is statelyai/xstate?

XState is an orchestration library for modeling application logic and state machines in JavaScript and TypeScript. As applications grow complex, managing asynchronous flows, side effects, and UI transitions with uncoordinated boolean flags often leads to impossible states and race conditions. XState provides a formal, predictable way to declare and execute states and events with compile-time type safety.

STATE_MANAGEMENTnpm:xstateTypeScriptreleases.atom
30,421+46 stars (24h)
#ai-agent#xstate#typescript
AI Executive Summary & Artifact Size Impact
Quick Summary: What Changed · What To Do · Upgrade Effort

Fixes assertEvent type narrowing for generic parameters and wildcards. Update dependency. Migration: None.

Semver: PATCH·Manifest: package.json
Artifact Size Impactunavailable
Size Unavailable
Telemetry unmeasured for pre-release or source-only registry build
Breaking Changes, Release Highlights & Migration Snippet

Key Release Highlights (xstate@5.33.4)

  • Fixes assertEvent type narrowing when operating on generic parameters (<TEvent extends EventUnion>), resolving false-positive 'Property does not exist' compiler errors.
  • Maintains narrowing for union-of-literals event types across both concrete and generic event inputs.
  • Aligns type inference with runtime behavior for partial wildcard descriptors (such as 'FEEDBACK.*') in assertEvent and ExtractEvent by retaining bare prefix events.
Zero Breaking Changes Detected

Verified safe drop-in upgrade for xstate in package.json.

Copy-Paste Upgrade / Migration Snippet
npm install xstate@5.33.4

Ecosystem Compatibility Matrix & Verified Graph Warnings

TypeScript >=5.0compatible— Maintains compatibility with modern TypeScript type narrowing and generic constraints.
Node.js >=18compatible— Standard runtime support remains unaffected by compile-time type-level fixes.

Zero-Noise Historical Release Timeline (2)

Format: [Core Change] + [Required Action] + [Migration Effort]
xstate@5.33.4COMPATIBLE⚖️ Size Unavailable

Fixes assertEvent type narrowing for generic parameters and wildcards. Update dependency. Migration: None.

xstate@6.0.0-alpha.73PRE_RELEASE⚖️ Size Unavailable

Ships xstate@xstate@6.0.0-alpha.73 with upstream runtime. Pre-release build; test in staging. Migration: Low.

Upgrade & Migration Q&A (statelyai/xstate xstate@5.33.4)

Direct Answers for Engineers & AI Agents

Is statelyai/xstate xstate@5.33.4 safe to upgrade in production?

statelyai/xstate xstate@5.33.4 is classified as COMPATIBLE (PATCH release). Fixes assertEvent type narrowing for generic parameters and wildcards. Update dependency. Migration: None.

What breaking changes or compatibility risks exist in statelyai/xstate xstate@5.33.4?

No breaking API changes or peer dependency conflicts are recorded for statelyai/xstate xstate@5.33.4 in the RepoSense compatibility graph.

What is the bundle size impact of xstate xstate@5.33.4?

Measured bundle size telemetry is currently unavailable for xstate xstate@5.33.4; verify build output locally before deploying.

How do I upgrade xstate to xstate@5.33.4?

Upgrade xstate to xstate@5.33.4 by running "npm install xstate@xstate@5.33.4" and applying the migration steps: npm install xstate@5.33.4