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2.1.0

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@unadlib unadlib released this 19 Jul 16:15
· 78 commits to main since this release
v2.1.0
80d4061

[2.1.0] - 2026-07-19

Added

  • Add createTravelJournal() and the owner-safe TravelJournal interface for runtimes that already own state and produce forward/inverse patch pairs. External commits enter through recordPatches(); undo, redo, and cursor navigation are synchronously delegated through the required apply callback.
  • Publish a recordPatches observer/devtools event after an external commit is retained. TypeScript compatibility: TravelsEvent['type'] now includes 'recordPatches', so consumers using an exhaustive switch with a never assertion must add a branch. Standard createTravels() timelines never emit this event.

Fixed

  • Clone entry metadata before mutating state so a throwing metadata accessor cannot leave setState() or a controlled journal with state, cursor, and retained history out of sync.

Changed

  • Exclude state-owning operations such as setState(), reset(), transactions, tracking controls, and getControls() from controlled journals and reject those operations at runtime. recordPatches() is reserved for journals created through createTravelJournal().

Performance

  • Keep controlled external commits proportional to the supplied patch pair by avoiding a second update recipe or full-state diff, and specialize patch detachment for retained journal entries.

Documentation

  • Define the controlled journal's commit ordering, synchronous navigation, failure atomicity, replay-suppression, and state/patch trust boundaries in a dedicated integration guide.
  • Replace simulated comparison claims with a reproducible real-library benchmark across Travels, MST, mobx-keystone, Coaction history, Redux-undo, and Zundo, including generated JSON/SVG results and local Coaction checkout support.

Full Changelog: v2.0.0...v2.1.0

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