# Changelog

## v1.0 - 2026-07-14

Initial public release documentation for EventActivityNet.

Verified release facts:

- Large scale: 3,263 videos, 106.941600381 hours.
- Medium scale: 1,537 videos, 50.000000128 hours.
- Small scale: 667 videos, 20.000000374 hours.
- 200 verified action classes.
- Large train/validation split: 2,316 / 947.
- HDF5 schema: `events`, `voxel_event_start`, `voxel_event_count`.
- `events` shape: `(T, 5, H, W)`, dtype `int16`.
- Total production size after validation: 4,355,745,895,245 bytes.
- Final integrity audit status: PASS.
- No truncated or structurally inconsistent production HDF5 files remain.

Notes:

- Five problematic HDF5 files were regenerated and safely installed before the final integrity audit.
- Medium and Small are deterministic nested v1.0 release scales derived from Large.
- The verified exact Large duration is 106.941600381 hours using `src_fmt_dur`.
- The verified class count is 200.