Migrating from LessonKit 1.2.x to 1.3.0

Summary

Area	1.2.x	1.3.0
Compound containers	Page, InteractiveBook, AssessmentSequence	+ Slide, SlideDeck (H5P Course Presentation)
Slide navigation	—	Keyboard: Arrow keys, Home, End
Telemetry	v3 (book_page_viewed, …)	+ slide_viewed
Block catalog v3	24 entries	+ Slide, SlideDeck

Additive API

import { Slide, SlideDeck } from "@lessonkit/react";
import type { CompoundHandle } from "@lessonkit/react";

Example:

<SlideDeck blockId="onboarding-deck" title="New hire onboarding" showDeckScore>
  <Slide blockId="slide-intro" title="Welcome">
    <Text>Welcome aboard.</Text>
  </Slide>
  <Slide blockId="slide-quiz" title="Check">
    <TrueFalse checkId="ppe-tf" question="PPE required?" answer={true} />
  </Slide>
</SlideDeck>

SlideDeck implements CompoundHandle (score aggregation, resume, session persistence) using the same machinery as InteractiveBook.

Slide allowlist

Slide children mirror Page minus ProgressTracker. Nested compounds (Page, InteractiveBook, SlideDeck, AssessmentSequence) are excluded. Planned expansions: Video, Summary (see H5P capability map).

Telemetry

• SlideDeck emits slide_viewed with { blockId, slideIndex, slideTitle }.

• Each visible Slide emits compound_page_viewed with parentType: "SlideDeck".

lessonkit.json

• Compound blockId values on SlideDeck are not LMS lessonIds.

• Scored children still use assessments[] with checkId (unchanged from 1.2.x).

Golden example

The examples/slide-deck app demonstrates a four-slide deck with TrueFalse scoring and lessonkit.json parity.