diff --git a/libgui/Makefile.am b/libgui/Makefile.am
--- a/libgui/Makefile.am
+++ b/libgui/Makefile.am
@@ -77,7 +77,7 @@ liboctgui_la_LIBADD = \
   $(LIBOCTGUI_LINK_DEPS)
 
 # Increment these as needed and according to the rules in the libtool manual:
-liboctgui_current = 0
+liboctgui_current = 1
 liboctgui_revision = 0
 liboctgui_age = 0
 
diff --git a/libinterp/Makefile.am b/libinterp/Makefile.am
--- a/libinterp/Makefile.am
+++ b/libinterp/Makefile.am
@@ -199,7 +199,7 @@ liboctinterp_la_LIBADD = \
   $(LIBOCTINTERP_LINK_DEPS)
 
 # Increment these as needed and according to the rules in the libtool manual:
-liboctinterp_current = 2
+liboctinterp_current = 3
 liboctinterp_revision = 0
 liboctinterp_age = 0
 
diff --git a/liboctave/Makefile.am b/liboctave/Makefile.am
--- a/liboctave/Makefile.am
+++ b/liboctave/Makefile.am
@@ -97,7 +97,7 @@ liboctave_la_LIBADD += \
   $(LIBOCTAVE_LINK_DEPS)
 
 # Increment these as needed and according to the rules in the libtool manual:
-liboctave_current = 2
+liboctave_current = 3
 liboctave_revision = 0
 liboctave_age = 0