git: 9f85cf09d48b - main - UPDATING: Belatedly note OpenZFS sysctls moving

From: Ed Maste <emaste_at_FreeBSD.org>
Date: Thu, 16 Oct 2025 18:43:24 UTC
The branch main has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=9f85cf09d48bb1bebeddab0913fc9ab2735cb810

commit 9f85cf09d48bb1bebeddab0913fc9ab2735cb810
Author:     Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2025-10-16 16:47:08 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2025-10-16 18:43:01 +0000

    UPDATING: Belatedly note OpenZFS sysctls moving
    
    Sponsored by:   The FreeBSD Foundation
    Differential Revision: https://reviews.freebsd.org/D52665
---
 UPDATING | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/UPDATING b/UPDATING
index ed49bd76e917..02541eb4b41c 100644
--- a/UPDATING
+++ b/UPDATING
@@ -27,6 +27,18 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 16.x IS SLOW:
 	world, or to merely disable the most expensive debugging functionality
 	at runtime, run "ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20251016:
+	With the migration to OpenZFS in FreeBSD 13.x a number of ZFS sysctls
+	moved to new locations, but backwards compatibility aliases were
+	provided.  These aliases will be removed in the near future.  Please
+	update /etc/sysctl.conf to reference the new OIDs.  For example,
+
+	        vfs.zfs.min_auto_ashift=12
+
+	needs to be changed to
+
+	        vfs.zfs.vdev.min_auto_ashift=12
+
 20251015:
 	The "FreeBSD-unbound" package is renamed to "FreeBSD-local-unbound".
 	If you have set-optional or set-base installed, the new package will