diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
--- a/ObsoleteFiles.inc
+++ b/ObsoleteFiles.inc
@@ -36,6 +36,17 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
+# 20210201: bump shared libraries which link against ncurses
+OLD_LIBS+=lib/libedit.so.7
+OLD_LIBS+=usr/lib/libdialog.so.8
+OLD_LIBS+=usr/lib/libdpv.so.1
+OLD_LIBS+=usr/lib/libform.so.5
+OLD_LIBS+=usr/lib/libformw.so.5
+OLD_LIBS+=usr/lib/libmenu.so.5
+OLD_LIBS+=usr/lib/libmenuw.so.5
+OLD_LIBS+=usr/lib/libpanel.so.5
+OLD_LIBS+=usr/lib/libpanelw.so.5
+
 # 20210125: ndis driver support removed
 OLD_FILES+=usr/sbin/ndiscvt
 OLD_FILES+=usr/sbin/ndisgen
diff --git a/gnu/lib/libdialog/Makefile b/gnu/lib/libdialog/Makefile
--- a/gnu/lib/libdialog/Makefile
+++ b/gnu/lib/libdialog/Makefile
@@ -3,7 +3,7 @@
 DIALOG=		${SRCTOP}/contrib/dialog
 
 LIB=		dialog
-SHLIB_MAJOR=	8
+SHLIB_MAJOR=	9
 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 \
diff --git a/lib/libdpv/Makefile b/lib/libdpv/Makefile
--- a/lib/libdpv/Makefile
+++ b/lib/libdpv/Makefile
@@ -2,7 +2,7 @@
 
 PACKAGE=	dpv
 LIB=		dpv
-SHLIB_MAJOR=	1
+SHLIB_MAJOR=	2
 INCS=		dpv.h
 MAN=		dpv.3
 MLINKS=		dpv.3 dpv_free.3
diff --git a/lib/libedit/Makefile b/lib/libedit/Makefile
--- a/lib/libedit/Makefile
+++ b/lib/libedit/Makefile
@@ -7,7 +7,7 @@
 EDITDIR=	${SRCTOP}/contrib/libedit
 .PATH: ${EDITDIR}
 
-SHLIB_MAJOR=	7
+SHLIB_MAJOR=	8
 SHLIBDIR?= /lib
 
 WARNS?=	3
diff --git a/lib/ncurses/form/Makefile b/lib/ncurses/form/Makefile
--- a/lib/ncurses/form/Makefile
+++ b/lib/ncurses/form/Makefile
@@ -6,6 +6,7 @@
 SRCDIR=	${NCURSES_DIR}/form
 
 LIB=	formw
+SHLIB_MAJOR=	6
 
 .PATH: ${SRCDIR}
 SRCS=	\
diff --git a/lib/ncurses/menu/Makefile b/lib/ncurses/menu/Makefile
--- a/lib/ncurses/menu/Makefile
+++ b/lib/ncurses/menu/Makefile
@@ -6,6 +6,7 @@
 SRCDIR=	${NCURSES_DIR}/menu
 
 LIB=	menuw
+SHLIB_MAJOR=	6
 
 .PATH: ${SRCDIR}
 SRCS=	\
diff --git a/lib/ncurses/panel/Makefile b/lib/ncurses/panel/Makefile
--- a/lib/ncurses/panel/Makefile
+++ b/lib/ncurses/panel/Makefile
@@ -6,6 +6,7 @@
 SRCDIR=	${NCURSES_DIR}/panel
 
 LIB=	panelw
+SHLIB_MAJOR=	6
 
 .PATH: ${SRCDIR}
 SRCS=	\