# 3GPP Release Coverage Matrix

Regenerated 2026-04-15. Counts include `.docx`, legacy `.doc`, and (for Rel-20)
paired `.zip` packages. Earlier revisions of this file counted only `.docx`,
which undercounted Rel-18 by ~560 specs and Rel-19 by ~75.

## Totals per release

| Release | .docx | .doc | .zip | Total |
|---------|------:|-----:|-----:|------:|
| Rel-8   | 1145  |   0  |   0  | 1145  |
| Rel-9   | 1254  |   0  |   0  | 1254  |
| Rel-10  | 1132  |   0  |   0  | 1132  |
| Rel-11  | 1265  |   0  |   0  | 1265  |
| Rel-12  | 1316  |   0  |   0  | 1316  |
| Rel-13  | 1429  |   0  |   0  | 1429  |
| Rel-14  | 1393  |   0  |   0  | 1393  |
| Rel-15  | 1605  |   0  |   0  | 1605  |
| Rel-16  | 1713  |   0  |   0  | 1713  |
| Rel-17  | 1906  |   0  |   0  | 1906  |
| Rel-18  | 1051  | 564  |   0  | 1615  |
| Rel-19  | 1542  |  75  |   0  | 1617  |
| Rel-20  |   42  |   6  |  48  |   96  |

Grand total: ~17,686 spec files across 13 releases (excludes `.yang`/`.yaml`
API artefacts and the backup snapshots under `*.backup-20260413/`).

## Notes

- **Rel-18** and beyond use the per-series layout (`Rel-XX/{NN}_series/`). The
  older flat `Documents/` snapshot for Rel-18 is archived at
  `releases/Rel-18.backup-20260413/` and is not part of the current totals.
- **Rel-18** extends past the usual 21-38 range: 41, 42, 43, 44, 45, 46, 48,
  49, 51, 52, 55 series are present (mostly legacy `.doc`).
- **Rel-14** is the first release that includes `38_series` (5G NR).
- **Rel-19** skips `25_series` (UTRA legacy, frozen).
- **Rel-20** is partial and mixes `.docx` with paired `.zip` packages; likely
  still ingesting.
- **Series 25** (UTRA) is present through Rel-17 but not in Rel-19+, consistent
  with 3GPP deprecating it.

## Regeneration

```bash
cd ot/3gpp
for rel in Rel-8 Rel-9 Rel-10 Rel-11 Rel-12 Rel-13 Rel-14 Rel-15 Rel-16 Rel-17 Rel-18 Rel-19 Rel-20; do
  dx=$(find "releases/$rel" -name "*.docx" 2>/dev/null | wc -l | tr -d ' ')
  d=$(find "releases/$rel" -name "*.doc" ! -name "*.docx" 2>/dev/null | wc -l | tr -d ' ')
  z=$(find "releases/$rel" -name "*.zip" 2>/dev/null | wc -l | tr -d ' ')
  echo "$rel|docx=$dx|doc=$d|zip=$z|total=$((dx + d + z))"
done
```