v2.2.21

Rick van Rein

@vanrein

b2a5d348 · Version bump to v2.2.21 · Apr 25, 2023

## v2.2.21 (2023-04-25)

- Entropy support on Windows (ACCOUNTED not implemented)
- Removed shell dependencies
- Extension of a2rule(1) with ARPA2 LETS