git diff 20230212..20230324 -w -p
diff --git a/configure.ac b/configure.ac
index 933684ef..d808beaf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ([2.71])
 
 AC_INIT(
  [libewf],
- [20230212],
+ [20230324],
  [joachim.metz@gmail.com])
 
 AC_CONFIG_SRCDIR(
diff --git a/libewf/libewf_libfdata.h b/libewf/libewf_libfdata.h
index 68dd5d19..f7cf74bd 100644
--- a/libewf/libewf_libfdata.h
+++ b/libewf/libewf_libfdata.h
@@ -34,8 +34,6 @@
 #include <libfdata_list_element.h>
 #include <libfdata_range_list.h>
 #include <libfdata_stream.h>
-#include <libfdata_tree.h>
-#include <libfdata_tree_node.h>
 #include <libfdata_types.h>
 #include <libfdata_vector.h>
 
diff --git a/m4/libfdata.m4 b/m4/libfdata.m4
index 483cb64f..718b4fbc 100644
--- a/m4/libfdata.m4
+++ b/m4/libfdata.m4
@@ -1,6 +1,6 @@
 dnl Functions for libfdata
 dnl
-dnl Version: 20201130
+dnl Version: 20230318
 
 dnl Function to detect if libfdata is available
 dnl ac_libfdata_dummy is used to prevent AC_CHECK_LIB adding unnecessary -l<library> arguments
@@ -125,9 +125,6 @@ AC_DEFUN([AX_LIBFDATA_CHECK_LIB],
           [ac_cv_libfdata_dummy=yes],
           [ac_cv_libfdata=no])
 
-        dnl Balanced tree functions
-        dnl TODO: add functions
-
         dnl List functions
         AC_CHECK_LIB(
           fdata,
diff --git a/m4/libodraw.m4 b/m4/libodraw.m4
index cdb37cd1..9da9198f 100644
--- a/m4/libodraw.m4
+++ b/m4/libodraw.m4
@@ -1,6 +1,6 @@
 dnl Checks for libodraw required headers and functions
 dnl
-dnl Version: 20190308
+dnl Version: 20230218
 
 dnl Function to detect if libodraw is available
 dnl ac_libodraw_dummy is used to prevent AC_CHECK_LIB adding unnecessary -l<library> arguments
@@ -197,7 +197,7 @@ AC_DEFUN([AX_LIBODRAW_CHECK_LIB],
 
 dnl Function to detect if libodraw dependencies are available
 AC_DEFUN([AX_LIBODRAW_CHECK_LOCAL],
-  [AM_PROG_LEX
+  [AC_PROG_LEX(noyywrap)
   AC_PROG_YACC
 
   ac_cv_libodraw_CPPFLAGS="-I../libodraw";
diff --git a/msvscpp/libfdata/libfdata.vcproj b/msvscpp/libfdata/libfdata.vcproj
index ef9af59c..5ddb62e2 100644
--- a/msvscpp/libfdata/libfdata.vcproj
+++ b/msvscpp/libfdata/libfdata.vcproj
@@ -198,14 +198,6 @@
 				RelativePath="..\..\libfdata\libfdata_support.c"
 				>
 			</File>
-			<File
-				RelativePath="..\..\libfdata\libfdata_tree.c"
-				>
-			</File>
-			<File
-				RelativePath="..\..\libfdata\libfdata_tree_node.c"
-				>
-			</File>
 			<File
 				RelativePath="..\..\libfdata\libfdata_vector.c"
 				>
@@ -288,14 +280,6 @@
 				RelativePath="..\..\libfdata\libfdata_support.h"
 				>
 			</File>
-			<File
-				RelativePath="..\..\libfdata\libfdata_tree.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\libfdata\libfdata_tree_node.h"
-				>
-			</File>
 			<File
 				RelativePath="..\..\libfdata\libfdata_types.h"
 				>