Index: ObsoleteFiles.inc
===================================================================
--- ObsoleteFiles.inc
+++ ObsoleteFiles.inc
@@ -40,6 +40,12 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
+# 2021xxxx: libdialog shlib bumped to version 10 for dialog 1.3
+OLD_LIBS+=usr/lib/libdialog.so.9
+OLD_LIBS+=usr/lib/libdpv.so.2
+OLD_LIBS+=usr/lib32/libdialog.so.9
+OLD_LIBS+=usr/lib32/libdpv.so.2
+
 # 20211022
 OLD_FILES+=sbin/spppcontrol
 .if ${TARGET_ARCH} == "i386"
Index: gnu/lib/libdialog/Makefile
===================================================================
--- gnu/lib/libdialog/Makefile
+++ gnu/lib/libdialog/Makefile
@@ -3,7 +3,7 @@
 DIALOG=		${SRCTOP}/contrib/dialog
 
 LIB=		dialog
-SHLIB_MAJOR=	9
+SHLIB_MAJOR=	10
 SRCS=		argv.c arrows.c buildlist.c buttons.c calendar.c checklist.c \
 		columns.c dlg_keys.c editbox.c fselect.c formbox.c guage.c \
 		help.c inputbox.c inputstr.c menubox.c mixedform.c \
Index: lib/libdpv/Makefile
===================================================================
--- lib/libdpv/Makefile
+++ lib/libdpv/Makefile
@@ -2,7 +2,7 @@
 
 PACKAGE=	dpv
 LIB=		dpv
-SHLIB_MAJOR=	2
+SHLIB_MAJOR=	3
 INCS=		dpv.h
 MAN=		dpv.3
 MLINKS=		dpv.3 dpv_free.3
Index: tools/build/mk/OptionalObsoleteFiles.inc
===================================================================
--- tools/build/mk/OptionalObsoleteFiles.inc
+++ tools/build/mk/OptionalObsoleteFiles.inc
@@ -1663,11 +1663,11 @@
 OLD_FILES+=usr/bin/dpv
 OLD_FILES+=usr/lib/libdialog.a
 OLD_FILES+=usr/lib/libdialog.so
-OLD_FILES+=usr/lib/libdialog.so.8
+OLD_FILES+=usr/lib/libdialog.so.10
 OLD_FILES+=usr/lib/libdialog_p.a
 OLD_FILES+=usr/lib/libdpv.a
 OLD_FILES+=usr/lib/libdpv.so
-OLD_FILES+=usr/lib/libdpv.so.1
+OLD_FILES+=usr/lib/libdpv.so.3
 OLD_FILES+=usr/lib/libdpv_p.a
 OLD_FILES+=usr/sbin/bsdconfig
 OLD_FILES+=usr/share/man/man1/dialog.1.gz