Index: library/serialize/serializer.tcl
===================================================================
diff -u -rce99d2e545ab2b5677045db1184e80f6bded0dbe -r73f1e56ae78d53bfd1f59c8bbb46f11a47555a4a
--- library/serialize/serializer.tcl	(.../serializer.tcl)	(revision ce99d2e545ab2b5677045db1184e80f6bded0dbe)
+++ library/serialize/serializer.tcl	(.../serializer.tcl)	(revision 73f1e56ae78d53bfd1f59c8bbb46f11a47555a4a)
@@ -1,6 +1,6 @@
 package require nx
 
-package require XOTcl 2.1
+package require XOTcl 2.2
 package provide nx::serializer 2.2
 
 # For the time being, we require classical XOTcl.
Index: library/xotcl/library/xotcl2.tcl
===================================================================
diff -u -r9b831c84733568b14118c288e19191bdc7e35a8e -r73f1e56ae78d53bfd1f59c8bbb46f11a47555a4a
--- library/xotcl/library/xotcl2.tcl	(.../xotcl2.tcl)	(revision 9b831c84733568b14118c288e19191bdc7e35a8e)
+++ library/xotcl/library/xotcl2.tcl	(.../xotcl2.tcl)	(revision 73f1e56ae78d53bfd1f59c8bbb46f11a47555a4a)
@@ -48,7 +48,7 @@
   #
   # Set XOTcl version variables
   #
-  set ::xotcl::version 2.1
+  set ::xotcl::version 2.2
   set ::xotcl::patchlevel .0
 
   namespace eval ::nsf {}            ;# make pkg-indexer happy