The branch main has been updated by christos:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=3b60c193fc8e0d4fdc6cf8683afbb7c9b3b5f6ca

commit 3b60c193fc8e0d4fdc6cf8683afbb7c9b3b5f6ca
Author:     Christos Margiolis <chris...@freebsd.org>
AuthorDate: 2025-02-25 11:58:25 +0000
Commit:     Christos Margiolis <chris...@freebsd.org>
CommitDate: 2025-02-25 11:58:25 +0000

    RELNOTES: Add 02d4eeabfd73 note
    
    Sponsored by:   The FreeBSD Foundation
---
 RELNOTES | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/RELNOTES b/RELNOTES
index 96e2d24bf833..7b5eac0d8730 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -10,6 +10,16 @@ newline.  Entries should be separated by a newline.
 
 Changes to this file should not be MFCed.
 
+02d4eeabfd73:
+       hw.snd.maxautovchans has been retired. The commit introduced a
+       hw.snd.vchans_enable sysctl, which along with
+       dev.pcm.X.{play|rec}.vchans, from now on work as tunables to only
+       enable/disable vchans, as opposed to setting their number and/or
+       (de-)allocating vchans. Since these sysctls do not trigger any
+       (de-)allocations anymore, their effect is instantaneous, whereas before
+       we could have frozen the machine (when trying to allocate new vchans)
+       when setting dev.pcm.X.{play|rec}.vchans to a very large value.
+
 7e7f88001d7d:
        The definition of pf's struct pfr_tstats and struct pfr_astats has
        changed, breaking ABI compatibility for 32-bit powerpc (including

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