# XState 6.0.0-alpha.13

- Product: XState (https://whatsnew.fyi/product/xstate)
- Vendor: Stately
- Date: 2026-06-30
- Version: 6.0.0-alpha.13
- Original notes: https://github.com/statelyai/xstate/releases/tag/xstate%406.0.0-alpha.13
- Permalink: https://whatsnew.fyi/product/xstate/releases/6.0.0-alpha.13
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **added** — Added `createFSM(...)` for flat, actor-compatible finite state machines with support for object transitions, function transitions, `enq` actions, initial input, state `input`, entry actions, and exit actions
- **changed** — Object transition configs now support dynamic context patches with a `context` mapper function

###### Minor Changes

-   bdc54dd: Added `createFSM(...)` for flat, actor-compatible finite state machines.

    ```ts
    import { createActor, createFSM } from 'xstate';

    const toggleLogic = createFSM({
      initial: 'inactive',
      context: { count: 0 },
      states: {
        inactive: {
          on: {
            toggle: {
              target: 'active',
              context: { count: 1 }
            }
          }
        },
        active: {
          on: {
            toggle: ({ context }, enq) => {
              enq(() => console.log('toggled'));

              return {
                target: 'inactive',
                context: { count: context.count + 1 }
              };
            }
          }
        }
      }
    });

    const actor = createActor(toggleLogic).start();

    actor.send({ type: 'toggle' });
    ```

    `createFSM(...)` supports XState-style object transitions, function transitions, `enq` actions, initial input, state `input`, entry actions, and exit actions. Plain string targets are intentionally not supported; use object targets such as `{ target: 'active' }`.

    Simple FSM transitions preserve immutable public snapshots while using structural sharing and a lighter transition path for common `{ target }`, `{ context }`, and `{ target, context }` transitions.

###### Patch Changes

-   e297115: Object transition configs now support dynamic context patches with a `context` mapper.

    ```ts
    onDone: {
      target: 'done',
      context: ({ context, output }) => ({
        answer: output,
        memory: [...context.memory, output]
      })
    }
    ```