OpenBSD 6.4 Released

The release of OpenBSD 6.4 has beenannounced:

We are pleased to announce the official release of OpenBSD 6.4.This is our 45th release. We remain proud of OpenBSD's record of morethan twenty years with only two remote holes in the default install.["]

Rather than reproducing the full list of new features here, we refer readers to the officialOpenBSD 6.4 page.

Selected highlights include:

• Support has been added for qcow2 images and external snapshots invmm(4)/vmd(8).
• "join" has been added forWi-Fi networks.
• Security enhancements includeunveil(2),MAP_STACK, and RETGUARD.Meltdown/Spectre mitigations have been extended further, and SMT is disabledby default.
• rad(8) has replaced rtadvd(8).
• bgpd(8) has undergone numerous improvements,including the addition of support for BGP Origin Validation (RFC 6811).
• smtpd.conf(5) uses a new, more flexible grammar.
• For the first time, there are more than 10,000 (binary) packages (for amd64 and i386).

Those upgrading from version 6.3 should read theupgrade guide.

Readers are encouraged to show their appreciation inthe conventional manner.