diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e1eb67a..4f9833d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,11 +15,15 @@
 * Changed XML creation and parse API for more coherency and closer YANG/XML integration. A new yang spec parameter has been added (default NULL) and functions have been removed and renamed. You may need to change the XML calls as follows.
   * xml_new(name, parent) --> xml_new(name, xn_parent, yspec)
   * xml_new_spec(name, parent, spec) --> xml_new(name, parent, spec)
+  * clicon_xml_parse(&xt, format, ...) --> xml_parse_va(&xt, yspec, format, ...)
   * clicon_xml_parse_file(fd, &xt, endtag) --> xml_parse_file(fd, endtag, yspec, &xt)
   * clicon_xml_parse_string(&str, &xt) --> xml_parse_string(str, yspec, &xt)
-  * xml_parse(str, xt) --> xml_parse_string(str, yspec, &xt)
-  * clicon_xml_parse(&xt, format, ...) --> xml_parse_va(&xt, yspec, format, ...)
   * clicon_xml_parse_str(str, &xt) --> xml_parse_string(str, yspec, &xt)
+  * xml_parse(str, xt) --> xml_parse_string(str, yspec, &xt)
+  * Backward compatibility is enabled by (will be removed in 3.5.0:
+  ```
+      configure --with-xml-compat
+  ```
   
 ## 3.3.3 (25 November 2017)
 
diff --git a/apps/cli/cli_show.c b/apps/cli/cli_show.c
index a30fb1d1..350966bd 100644
--- a/apps/cli/cli_show.c
+++ b/apps/cli/cli_show.c
@@ -209,8 +209,7 @@ expand_dbvar(void   *h,
 	else
 	    bodystr = xml_body(x);
 	if (bodystr == NULL){
-	    clicon_err(OE_CFG, 0, "No xml body");
-	    goto done;
+	    continue; /* no body, cornercase */
 	}
 	/* detect duplicates */
 	for (k=0; k<j; k++){
diff --git a/configure b/configure
index dde106ab..d6c316e5 100755
--- a/configure
+++ b/configure
@@ -632,6 +632,7 @@ CPP
 OBJEXT
 EXEEXT
 ac_ct_CC
+with_xml_compat
 with_config_compat
 with_startup_compat
 with_keyvalue
@@ -713,6 +714,7 @@ with_keyvalue
 with_qdbm
 with_startup_compat
 with_config_compat
+with_xml_compat
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1352,7 +1354,8 @@ Optional Packages:
   --with-keyvalue         enable support for key-value xmldb datastore
   --with-qdbm=dir         Use QDBM here, if keyvalue
   --with-startup-compat   Backward compatibility of backend startup commands
-  --with-config-compat    Backward compatibility of ocnfiguration file
+  --with-config-compat    Backward compatibility of configuration file
+  --with-xml-compat       Backward compatibility of XML API
 
 Some influential environment variables:
   CC          C compiler command
@@ -2353,8 +2356,12 @@ test -n "$target_alias" &&
 
  # If yes, compile apps/restconf
  # If yes, compile datastore/keyvalue
- # If yes, backward compatible backend startup
- # If yes, backward compatible .conf configuration
+# If yes, backward compatible with 3.3.2 backend startup
+
+# If yes, backward compatible with 3.3.2 .conf configuration
+
+# If yes, backward compatible with 3.3.3 XML api new and parse functions
+
 
 #
 ac_ext=c
@@ -3973,7 +3980,6 @@ fi
       echo "Using QDBM here: ${with_qdbm}"
       CPPFLAGS="-I${with_qdbm}/include ${CPPFLAGS}"
       LDFLAGS="-L${with_qdbm}/lib ${LDFLAGS}"
-
    fi
    # Problem: depot.h may be in qdbm/depot.h.
    for ac_header in depot.h
@@ -4054,7 +4060,8 @@ fi
 
 fi
 
-# This is for backward compatibility of backend startup commands
+# This is for backward compatibility of backend startup commands in 3.3.3
+# Will be removed in 3.4.0
 
 # Check whether --with-startup_compat was given.
 if test "${with_startup_compat+set}" = set; then :
@@ -4071,7 +4078,8 @@ _ACEOF
 
 fi
 
-# This is for backward compatibility of .conf configuration file
+# This is for backward compatibility of .conf configuration file in 3.3.3
+# Will be removed in 3.4.0
 
 # Check whether --with-config_compat was given.
 if test "${with_config_compat+set}" = set; then :
@@ -4088,6 +4096,24 @@ _ACEOF
 
 fi
 
+# This is for backward compatibility of XML create and parse API in 3.4.0
+# Will be removed in 3.5.0
+
+# Check whether --with-xml_compat was given.
+if test "${with_xml_compat+set}" = set; then :
+  withval=$with_xml_compat;
+else
+  with_xml_compat=no
+fi
+
+if test "x${with_xml_compat}" == xyes; then
+
+cat >>confdefs.h <<_ACEOF
+#define XML_COMPAT $with_xml_compat
+_ACEOF
+
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for crypt in -lcrypt" >&5
 $as_echo_n "checking for crypt in -lcrypt... " >&6; }
 if ${ac_cv_lib_crypt_crypt+:} false; then :
diff --git a/configure.ac b/configure.ac
index 5085b476..bbdd9a43 100644
--- a/configure.ac
+++ b/configure.ac
@@ -86,8 +86,12 @@ AC_SUBST(AR)
 AC_SUBST(RANLIB)
 AC_SUBST(with_restconf) # If yes, compile apps/restconf
 AC_SUBST(with_keyvalue) # If yes, compile datastore/keyvalue
-AC_SUBST(with_startup_compat) # If yes, backward compatible backend startup
-AC_SUBST(with_config_compat) # If yes, backward compatible .conf configuration
+# If yes, backward compatible with 3.3.2 backend startup
+AC_SUBST(with_startup_compat) 
+# If yes, backward compatible with 3.3.2 .conf configuration
+AC_SUBST(with_config_compat) 
+# If yes, backward compatible with 3.3.3 XML api new and parse functions
+AC_SUBST(with_xml_compat) 
 
 #
 AC_PROG_CC()
@@ -164,7 +168,8 @@ if test "x${with_keyvalue}" == xyes; then
    AC_CONFIG_FILES(datastore/keyvalue/Makefile)
 fi
 
-# This is for backward compatibility of backend startup commands
+# This is for backward compatibility of backend startup commands in 3.3.3
+# Will be removed in 3.4.0
 AC_ARG_WITH([startup_compat],
             [AS_HELP_STRING([--with-startup-compat],[Backward compatibility of backend startup commands])],
 	    [],
@@ -173,15 +178,27 @@ if test "x${with_startup_compat}" == xyes; then
    AC_DEFINE_UNQUOTED(BACKEND_STARTUP_COMPAT, $with_startup_compat, [Backward compatible backend startup command-line options])
 fi
 
-# This is for backward compatibility of .conf configuration file
+# This is for backward compatibility of .conf configuration file in 3.3.3
+# Will be removed in 3.4.0
 AC_ARG_WITH([config_compat],
-            [AS_HELP_STRING([--with-config-compat],[Backward compatibility of ocnfiguration file])],
+            [AS_HELP_STRING([--with-config-compat],[Backward compatibility of configuration file])],
 	    [],
             [with_config_compat=no])
 if test "x${with_config_compat}" == xyes; then
    AC_DEFINE_UNQUOTED(CONFIG_COMPAT, $with_config_compat, [Backward compatible of .conf configuration files])
 fi
 
+# Clixon 3.4.0 changes XML creation and parse API
+# Set this for backward compat and migration. 
+# Will be removed in 3.5.0
+AC_ARG_WITH([xml_compat],
+            [AS_HELP_STRING([--with-xml-compat],[Backward compatibility of XML API])],
+	    [],
+            [with_xml_compat=no])
+if test "x${with_xml_compat}" == xyes; then
+   AC_DEFINE_UNQUOTED(XML_COMPAT, $with_xml_compat, [Backward compatible of XML API])
+fi
+
 AC_CHECK_LIB(crypt, crypt)
 AC_CHECK_HEADERS(crypt.h)
 
diff --git a/include/clixon_config.h.in b/include/clixon_config.h.in
index 30dfb7aa..2c710c39 100644
--- a/include/clixon_config.h.in
+++ b/include/clixon_config.h.in
@@ -138,6 +138,9 @@
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
+/* Backward compatible of XML API */
+#undef XML_COMPAT
+
 /* Define to 1 if `lex' declares `yytext' as a `char *' by default, not a
    `char[]'. */
 #undef YYTEXT_POINTER
diff --git a/lib/clixon/clixon.h.in b/lib/clixon/clixon.h.in
index 26220770..074dca5e 100644
--- a/lib/clixon/clixon.h.in
+++ b/lib/clixon/clixon.h.in
@@ -56,6 +56,8 @@
 #undef CLIXON_VERSION_MINOR
 #undef CLIXON_VERSION_PATCH
 
+#undef XML_COMPAT
+
 /*
  * Use this constant to disable some prototypes that should not be visible outside the lib.
  * This is an alternative to use separate internal include files.
diff --git a/lib/clixon/clixon_xml.h b/lib/clixon/clixon_xml.h
index d84cabca..779c2dd1 100644
--- a/lib/clixon/clixon_xml.h
+++ b/lib/clixon/clixon_xml.h
@@ -38,6 +38,10 @@
 #ifndef _CLIXON_XML_H
 #define _CLIXON_XML_H
 
+/*
+ * Constants
+ */
+
 /*
  * Types
  */
@@ -113,12 +117,6 @@ cxobj    *xml_child_each(cxobj *xparent, cxobj *xprev,  enum cxobj_type type);
 
 cxobj   **xml_childvec_get(cxobj *x);
 int       xml_childvec_set(cxobj *x, int len);
-#ifdef OBSOLETE /* Changed in 3.3.3, see CHANGELOG */
-/* Changed: */
-cxobj    *xml_new(char *name, cxobj *xn_parent);
-/* Removed: */
-cxobj    *xml_new_spec(char *name, cxobj *xn_parent, void *spec);
-#endif
 cxobj    *xml_new(char *name, cxobj *xn_parent, yang_stmt *spec);
 yang_stmt *xml_spec(cxobj *x);
 int       xml_spec_set(cxobj *x, yang_stmt *spec);
@@ -142,15 +140,6 @@ int       xml_free(cxobj *xn);
 int       xml_print(FILE  *f, cxobj *xn);
 int       clicon_xml2file(FILE *f, cxobj *xn, int level, int prettyprint);
 int       clicon_xml2cbuf(cbuf *xf, cxobj *xn, int level, int prettyprint);
-#ifdef OBSOLETE /* Changed in 3.3.3, see CHANGELOG */
-/* Changed: */
-int       clicon_xml_parse(cxobj **cxtop, char *format, ...);
-int       clicon_xml_parse_file(int fd, cxobj **xml_top, char *endtag);
-int       clicon_xml_parse_str(char *str, cxobj **xml_top);
-/* Removed: */
-int       xml_parse(char *str, yang_spec *yspec, cxobj *xt);
-int       clicon_xml_parse_string(char **str, cxobj **xml_top);
-#endif
 int       xml_parse_file(int fd, char *endtag, yang_spec *yspec, cxobj **xt);
 int       xml_parse_string(const char *str, yang_spec *yspec, cxobj **xml_top);
 int       xml_parse_va(cxobj **xt, yang_spec *yspec, const char *format, ...);
@@ -180,4 +169,16 @@ int xml_hash_add(cxobj  *x);
 int xml_hash_rm_only(cxobj *x);
 int xml_hash_rm_entry(cxobj  *x);
 
+#ifdef XML_COMPAT /* See CHANGELOG */
+/* MANUAL CHANGE: xml_new(name, parent) --> xml_new(name, parent, NULL) */
+
+#define xml_new_spec(name, parent) xml_new(name, parent, NULL)
+#define clicon_xml_parse(xt, fmt, ...) xml_parse_va(xt, NULL, fmt, __VA_ARGS__)
+#define clicon_xml_parse_file(fd, xt, etag) xml_parse_file(fd, etag, NULL, xt)
+#define clicon_xml_parse_string(strp, xt) xml_parse_string(*strp, NULL, xt)
+#define clicon_xml_parse_str(str, xt) xml_parse_string(str, NULL, xt)
+#define xml_parse(str, xt) xml_parse_string(str, NULL, &xt)
+#endif
+
+
 #endif /* _CLIXON_XML_H */
diff --git a/lib/src/clixon_xml.c b/lib/src/clixon_xml.c
index f77a11f3..f5434155 100644
--- a/lib/src/clixon_xml.c
+++ b/lib/src/clixon_xml.c
@@ -955,12 +955,14 @@ clicon_xml2file(FILE  *f,
     cxobj *xc;
     int    hasbody;
     int    haselement;
+    char  *val;
 
     name = xml_name(x);
     namespace = xml_namespace(x);
     switch(xml_type(x)){
     case CX_BODY:
-	fprintf(f, "%s", xml_value(x));
+	if ((val = xml_value(x)) != NULL) /* incomplete tree */
+	    fprintf(f, "%s", xml_value(x));
 	break;
     case CX_ATTR:
 	fprintf(f, " ");
@@ -1191,7 +1193,7 @@ xmltree2cbuf(cbuf  *cb,
  * @see xml_parse_va
  */
 static int 
-xml_parse(const char *str, 
+_xml_parse(const char *str, 
 	  yang_spec  *yspec,
 	  cxobj      *xt)
 {
@@ -1297,7 +1299,7 @@ xml_parse_file(int        fd,
 	    if (*xt == NULL)
 		if ((*xt = xml_new(XML_TOP_SYMBOL, NULL, NULL)) == NULL)
 		    goto done;
-	    if (xml_parse(ptr, yspec, *xt) < 0)
+	    if (_xml_parse(ptr, yspec, *xt) < 0)
 		goto done;
 	    break;
 	}
@@ -1349,7 +1351,7 @@ xml_parse_string(const char *str,
     if (*xtop == NULL)
 	if ((*xtop = xml_new(XML_TOP_SYMBOL, NULL, NULL)) == NULL)
 	    return -1;
-    return xml_parse(str, yspec, *xtop);
+    return _xml_parse(str, yspec, *xtop);
 }
 
 /*! Read XML from var-arg list and parse it into xml tree
@@ -1397,7 +1399,7 @@ xml_parse_va(cxobj     **xtop,
     if (*xtop == NULL)
 	if ((*xtop = xml_new(XML_TOP_SYMBOL, NULL, NULL)) == NULL)
 	    goto done;
-    if (xml_parse(str, yspec, *xtop) < 0)
+    if (_xml_parse(str, yspec, *xtop) < 0)
 	goto done;
     retval = 0;
  done:
diff --git a/lib/src/clixon_xml_map.c b/lib/src/clixon_xml_map.c
index 08746aed..7bda04b9 100644
--- a/lib/src/clixon_xml_map.c
+++ b/lib/src/clixon_xml_map.c
@@ -680,10 +680,8 @@ match_base_child(cxobj     *x0,
 	cvi = NULL; i = 0;
 	while ((cvi = cvec_each(cvk, cvi)) != NULL) {
 	    keyname = cv_string_get(cvi);
-	    if ((b1 = xml_find_body(x1c, keyname)) == NULL){
-		clicon_err(OE_UNIX, errno, "key %s not found", keyname);
-		goto done;
-	    }
+	    if ((b1 = xml_find_body(x1c, keyname)) == NULL)
+		goto ok; /* not found */
 	    b1vec[i++] = b1;
 	}
 	/* Iterate over x0 tree to (1) find a child that matches name