I have Nexus 6P and I'm on Android Beta Program for Android N Developer Preview. From its program overview, it's stated that there will be 6 stages:
- Preview 1 (initial release, alpha)
- Preview 2 (incremental update, beta)
- Preview 3 (incremental update, beta)
- Preview 4 (final APIs and official SDK, Play publishing)
- Preview 5 (near-final system images for final testing)
- Final release to AOSP and ecosystem
How do I know which Android N preview stage I have?