RHEL 8.3 is out, see the official announcement.
Highlights from a Linux on Z perspective:
- Use protected key dm-crypt for Linux systems with access to CryptoExpress adapters in EP11 mode
- Now run the AES self test suite of the kernel automatically whenever the module is loaded, as required for a FIPS 140-2 certification
- Adds support for Secure Execution
- ECKD DASD can be transparently passed through to KVM guests, allowing full exploitation of all DASD features, including raw track access and IPL
- The qeth device driver improved handling of invalid frames
- SMC-R gained high availability through so-called link group support
- SMC-D gained forward-compatibility to SMC-Dv2
- Ability to IPL from NVMe devices
- Various new sysfs attributes to query FCP-related information, e.g. use
- /sys/class/fc_host/<host_name>/fabric_name to query the name of the connected Fibre Channel fabric
- /sys/bus/ccw/drivers/zfcp/<fcp_device_bus_ID>/fc_security to query IBM Fibre Channel Endpoint Security capabilities of the FCP channel providing the FCP device bus-ID
- /sys/bus/ccw/drivers/zfcp/<fcp_device_bus_ID>/0x<target_WWPN>/fc_security to query status of authentication and encryption of connection between FCP device and remote port
- Misc updates
Also, take note of a distro-specific edition of our Device Drivers, Features, and Commands book available here.