### New features

[`EditorState.create`](https://prosemirror.net/docs/ref/#state.EditorState^create) now accepts a `storedMark` option to set the state's stored marks.

[`EditorState.toJSON`](https://prosemirror.net/docs/ref/#state.EditorState.toJSON) and [`fromJSON`](https://prosemirror.net/docs/ref/#state.EditorState^fromJSON) persist the set of stored marks, when available.