[v5] Remove createModel

[davidkpiano]

Closes STA-1275

[changeset-bot]

🦋 Changeset detected

Latest commit: 460826a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
xstate	Major

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[linear]

STA-1275

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Legend

[Andarist]

What's the migration strategy that we will offer to people? Should we think about a codemod? Should we hand the model API to the community so they could publish and maintain a drop-in replacement package? Or do we propose to use a replacement snippet akin to this one (note that this doesn't actually contain runtime event factories, but that can be added to it) ?

[davidkpiano]

The migration will be part of v4 and not this PR. We will first have to mark it as deprecated in v4, and point to using schema instead.

This RFC is relevant: statelyai/rfcs#12

[Andarist]

We need a changeset here 😉

[mattpocock]

We should mark this as deprecated in v4, right?

[davidkpiano]

We should mark this as deprecated in v4, right?

Yes, good catch. Need to figure out a good migration strategy first though 🤔