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.
2025/06/11 - update to clang 19
Before building the system from source, make sure /etc/login.conf
is up to date, then change the build user's login class:
# sysmerge
# id -c build
default
# user mod -L build build
2025/07/16 - opaque stdio
The struct underlying FILE was made opaque and many base
libraries had a major bump.
Cross these bumps using a snapshot.
If you must build from source,
run make includes,
then build and install each one of libc, libcurses,
libcrypto, and libssl before building a
snapshot as usual.
2025/08/27 - [packages] mongodb/unifi
MongoDB 4.4 can no longer be built following an update of libc++.
At the present time, a port of 8.0 is being worked on, but errors
out at startup.
For now, you might like to avoid updating machines running mongodb
(including those running the unifi management software).
MongoDB 8.0 will not be able to read database files from 4.4 so,
when available, you will need to dump and restore the database
(mongodump with 4.4 installed and running, then mongorestore with
8.0 installed and running; the pkg-readme file for unifi has some
notes), or for unifi you can backup from inside unifi, then
you'll later need to clean the database directory and restore
from the backup.
2025/09/11 - [packages] rbw
Beginning in OpenBSD 7.8, support for Yubico OTP authentication has been
removed. You must add or use a different authenticator which doesn't rely on
OTP functionality prior to adding or synchronizing an account.
2025/09/06 - [packages] php default changed to 8.3
The default version of PHP in ports has changed from 8.2 to 8.3.
Follow the "Moving between PHP release branches" section of
/usr/local/share/doc/pkg-readmes/php-8.3 for
instructions about updating .ini file symlinks, etc.
$OpenBSD: current.html,v 1.1138 2025/09/29 14:30:45 sthen Exp $
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