As you can see at commit ports b4e7c457571f6241f3a4cf4cbff0db5160f03eeb, nvidia drops supports for old GPUs prior to Turing generation of architectures on 590 series and later drivers.
Anyone using -devel variant of drivers ports on old GPUs need to switch to parent (aka master) ports without -devel suffix. Currently other variants are NOT affected.
You can see which GPUs are still supported on 590.48.01 here.
Once nvidia releases 590 series or later drivers as Production Branch (PB) of their drivers and lands onto ports tree, new legacy branch -580 is planned to be created at the same time.
As far as I've notified, nvidia would keep 580 series of drivers as their Legacy Branch of drivers after 590 or later becomes PB.
Note that new quarterly 2026Q1 is not yet branched when the commit above landed, upcoming 2026Q1 quarterly should have 590.48.01 New Feature Branch (NFB) of driver as -devel variant from the beginning.
Anyone using -devel variant of drivers ports on old GPUs need to switch to parent (aka master) ports without -devel suffix. Currently other variants are NOT affected.
You can see which GPUs are still supported on 590.48.01 here.
Once nvidia releases 590 series or later drivers as Production Branch (PB) of their drivers and lands onto ports tree, new legacy branch -580 is planned to be created at the same time.
As far as I've notified, nvidia would keep 580 series of drivers as their Legacy Branch of drivers after 590 or later becomes PB.
Note that new quarterly 2026Q1 is not yet branched when the commit above landed, upcoming 2026Q1 quarterly should have 590.48.01 New Feature Branch (NFB) of driver as -devel variant from the beginning.