OpenSC 0.23.0 released

Hello all,

We are happy to announce the latest release of OpenSC 0.23.0. You can 
find the full summary of changes, release tarballs and binaries on github:

https://github.com/OpenSC/OpenSC/releases/tag/0.23.0

The most important changes are full support for OpenSSL 3.0, Libressl, 
improved support for symmetric keys, removal of DSA support and 
disablement of some old smart card drivers that were not touched for 
long time.

Thanks everyone who made this release possible by reporting issues or 
contributing pull requests.

Regards,
Jakub Jelen
and the OpenSC team