You can test OpenSSL 3.0.0 on FreeBSD systems using the security/openssl-devel port.
/etc/make.conf:
DEFAULT_VERSIONS+= ssl=openssl-devel
Alpine Linux
Alpine Linux has started building with OpenSSL 3.0.0, currently known issues with ports
| category/port | Problem | Ports Status | Upstream status/Comment |
|---|---|---|---|
| databases/postgresql13 | aports patch | ||
| dns/nsd | aports patch | ||
| www/pound | 3.0.0 | ||
| net/haproxy | 3.0.0 | ||
| security/p5-Crypt-OpenSSL-RSA | aports fix | ||
| www/apr-util | 3.0.0 | ||
| dns/unbound | 3.0.0 | ||
| audio/opusfile | 3.0.0 | ||
| dns/ldns | 3.0.0 | ||
| audio/libshout | 3.0.0 | ||
| databases/mariadb103 | 3.0.0 | ||
| databases/mariadb104 | 3.0.0 | ||
| databases/mariadb105 | 3.0.0 | ||
| mail/dovecot | 3.0.0 | ||
| security/libfido2 | 3.0.0 | ||
| 3.0.0 |
Too much still!