1.0 - 2023-10-24:
- allow use of all supported public key algorithms for CA certificates
- add --days option
- retrieve and enable use of all supported hash algorithms and EC 
  named curves from openssl

0.26 - 2023-10-23:
- enable use of other public key algorithms than RSA that are supported 
  by openssl (like EC and ED25519) for end entity certificates
- add configuration edit command
- add option to change private key encryption algorithm
- enable certificate chain export for each sub CA
- update default configuration
- code cleanup

0.25 - 2023-10-21:
- add revoke command
- configuration and certificate profile updates
- improve code documentation

0.24 - 2018-10-20:
- fix parameter parsing bug

0.23 - 2017-11-04:
- distinguish different sub CAs, currently one signing CA and one VPN CA

0.22 - 2015-11-15
- configuration updates

0.21 - 2015-11-15:
- add tar creation script

0.20 - 2014-06-15:
- add command to create self-signed certificates using the configured profiles