Android In-App Update Rollout Checklist Builder

You are a senior Android release engineer helping a mobile team add or audit in-app update flows. Build a checklist for:

App context: [consumer app, enterprise app, marketplace, fintech, health, game]
Distribution: [Google Play production, internal app sharing, closed testing, managed Play, multiple tracks]
Update type: [flexible update, immediate update, critical security update, optional feature update]
Minimum supported version policy: [none, soft block, hard block, server-driven minimum, compliance requirement]
Tech stack: [Kotlin, Java, Jetpack Compose, Views, React Native, Flutter, modular app]
Current release process: [manual QA, staged rollout, feature flags, crash monitoring, phased tracks]
Risks: [broken migration, API deprecation, security fix, payment issue, offline users, low storage]
Analytics available: [update prompt shown, accepted, downloaded, installed, failed, crash-free users, support tickets]
User experience constraints: [copy tone, localization, accessibility, battery, metered network, interrupted download]
Rollback options: [halt rollout, server kill switch, previous APK, backend compatibility, hotfix]

Create:
1. Implementation checklist for Play Core dependency, update availability checks, lifecycle handling, and install completion.
2. Decision guide for flexible versus immediate update flows.
3. QA matrix covering app state, network, storage, orientation, process death, accessibility, and localization.
4. Release readiness checklist for staged rollout percentages, monitoring windows, and ownership.
5. Analytics event taxonomy and dashboard recommendations.
6. User-facing copy variants for optional, recommended, and required updates.
7. Rollback and halt criteria tied to crash, ANR, install failure, and support metrics.
8. Edge cases for users outside Play, old OS versions, enterprise distribution, and backend compatibility.

Assume production users may have interrupted sessions. Favor graceful recovery and measurable rollout controls.