Add notes for handling the January 19, 2038 date limit in UFS1 filesystems

Differential Revision: https://reviews.freebsd.org/D48472

Author: Kirk McKusick

RELNOTES

@@ -18,6 +18,11 @@ f87bb5967670, e51036fbf3f8:
 	file systems has changed.  An NFS server that exports any of these file
 	systems will need its clients to unmount and remount the exports.
 
+1111a44301da:
+	Defer the January 19, 2038 date limit in UFS1 filesystems to
+	February 7, 2106. This affects only UFS1 format filesystems.
+	See the commit message for details.
+
 07cd69e272da:
 	Add a new -a command line option to mountd(8).
 	If this command line option is specified, when

UPDATING

@@ -35,6 +35,11 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 15.x IS SLOW:
 	Also, any revision between 88cd1e17a7d8 and 99e5a70046da should be
 	avoided.
 
+20250129:
+	Defer the January 19, 2038 date limit in UFS1 filesystems to
+	February 7, 2106. This affects only UFS1 format filesystems.
+	See commit message 1111a44301da for details.
+
 20250127:
 	The Allwinner a10_timer driver has been renamed to aw_driver. If you
 	have a custom kernel configuration including the line 'device