0.0.9   2026-07-17
   [Fixed]
     - Shared locking of the 'serial' file
     - Exclusive locking of the 'serial' file for updates
     - Retention of the original certificate's validity, if relative *and*
       no new validity is given
   [Added]
     - Ability to specify a new identity for the new certificate

0.0.8   2026-07-15
   [Changed]
     - Certificate store format; run 'sshca init --upgrade'
   [Added]
     - Certificate renewal by certificate identity
   [Fixed]
     - Exclusive lock on 'serial' file

0.0.7   2026-06-03
   [Fixed]
     - Resolution of 'basedir' argument to 'init' subcommand
     - Incorrect precedence in configuration option lookup
     - Provide debug output for 'init' command with '--debug' option
     - Processing continues even when invalid option provided

0.0.6   2026-03-20
   [Added]
     - Add '--issued' option to 'list' command to exclude
       revoked and renewed certs

0.0.5   2026-01-03
   [Added]
     - Add 'list' command for monitoring certificate expiry
     - Add 'revoke' command -- changes certificate status;
       does not (yet) generate a revocation list
     - Add 'cleanup' command to remove expired certificates

0.0.4   2025-07-24
   [Fixed]
     - Certificate principles and options silently
       discarded when issuing a new certificate
     - Debugging output should be on STDERR, because
       the certificate is sent to STDOUT and we don't
       want to clobber that

0.0.3   2025-07-07
   [Fixed]
     - Fixed exit codes (zero on success)

0.0.2   2025-07-07
   [Fixed]
     - CHANGES first release version number
     - Typos in documentation
     - Certificate storage directory name

0.0.1   2025-06-28
   [Added]
     - Initial release