OpenBSD Following -current and using snapshots [FAQ Index]

Active OpenBSD development is known as the -current branch. These sources are frequently compiled into releases known as snapshots.

Aggressive changes are sometimes pushed in this branch, and complications can arise when building the latest code or upgrading from a previous point in time. Some of the steps for getting over these hurdles are explained on this page. Make sure you've read and understand how to build the system from source before using -current and the instructions below.

In general, it's far easier to use snapshots, as developers will have gone through much of the trouble for you already.

You should always use a snapshot as the starting point for running -current. This process typically consists of running sysupgrade(8) with the -s flag. Alternatively, download (and verify) the appropriate bsd.rd file from the /snapshots/ directory of your preferred mirror, boot from it, and choose (U)pgrade at the prompt. Any installed packages should then be upgraded after booting into the new system.

Upgrading to -current by compiling your own source code is discouraged for everyone except for experts, as difficult build-time crossing-points can occur often, and no assistance will be provided. In case of failure, use a snapshot to recover.

Most of these changes will have to be performed as root.

2021/05/26 - [packages] FreeRADIUS 3.0.22: no more LEAP

2021/06/20 - SNMP security changes

• By default only SNMPv3 is enabled for snmpd(8). Desired message processing subsystems can be enabled on a per listener basis; e.g. to enable a listener with only SNMPv1/v2c read support set listen on 127.0.0.1 snmpv1 snmpv2 read.
• Default communities have been removed from snmpd(8). To enable read queries via the public community set read-only community public, in addition to the listen on flags.
• snmpd(8)'s seclevel default changed from none to enc.
• The default authentication has changed to SHA256 and the default encryption to AES for both snmpd(8) and snmp(1).