diff --git a/README b/README
index e8c4de2e..f5e30e7c 100644
--- a/README
+++ b/README
@@ -50,7 +50,7 @@ Output can be saved as BMP, EMF, EPS, GIF, PCX, PNG, SVG or TIF.
 
 DOCUMENTATION
 -------------
-For documentation see "docs/manual.txt" or online at
+For documentation see "docs/manual.txt" or "docs/manual.html" or online at
 
     <https://zint.org.uk/manual/>
 
@@ -62,7 +62,7 @@ Please see "ChangeLog" in the project root directory.
 
 LICENSE
 -------
-Zint, libzint and Zint Barcode Studio are Copyright © 2023 Robin Stuart. All
+Zint, libzint and Zint Barcode Studio are Copyright © 2024 Robin Stuart. All
 historical versions are distributed under the GNU General Public License
 version 3 or later. Versions 2.5 and later are released under a dual license:
 the encoding library is released under the BSD (3 clause) license whereas the
diff --git a/backend/code128.c b/backend/code128.c
index 44946007..55d63c04 100644
--- a/backend/code128.c
+++ b/backend/code128.c
@@ -168,7 +168,7 @@ static int c128_cost(const unsigned char source[], const int length, const int i
         const int cset = priority[p];
         if (C128_C0C1(cset)) {
             if (can_c && (!manuals[i] || manuals[i] == C128_C0)) {
-                const int incr = is_fnc1 ? 1 : 2;
+                const int incr = 2 - is_fnc1;
                 int mode = prior_cset;
                 int cost = 1;
                 if (prior_cset != cset) {
diff --git a/backend/tests/test_dmatrix.c b/backend/tests/test_dmatrix.c
index 067dd332..3970b62c 100644
--- a/backend/tests/test_dmatrix.c
+++ b/backend/tests/test_dmatrix.c
@@ -388,7 +388,7 @@ static void test_large(const testCtx *const p_ctx) {
                         testUtilEscape(data[i].pattern, (int) strlen(data[i].pattern), escaped, sizeof(escaped)), data[i].length,
                         testUtilErrorName(ret), symbol->rows, symbol->width, errtxt);
             symbol->input_mode |= FAST_MODE;
-            ret = ZBarcode_Encode(symbol, (unsigned char *) data_buf, length);
+            (void) ZBarcode_Encode(symbol, (unsigned char *) data_buf, length);
             printf(" \"%s\", \"%s\" },\n", strcmp(errtxt, symbol->errtxt) != 0 ? symbol->errtxt : "", data[i].comment);
         } else {
             assert_equal(ret, data[i].ret, "i:%d ZBarcode_Encode ret %d != %d (%s)\n", i, ret, data[i].ret, symbol->errtxt);
diff --git a/backend/tests/testcommon.c b/backend/tests/testcommon.c
index 75778243..cc89bbfe 100644
--- a/backend/tests/testcommon.c
+++ b/backend/tests/testcommon.c
@@ -1896,6 +1896,10 @@ int testUtilCmpBins(const char *bin1, const char *bin2) {
     do {
         len1 = fread(buf1, 1, sizeof(buf1), fp1);
         len2 = fread(buf2, 1, sizeof(buf2), fp2);
+        if (ferror(fp1) || ferror(fp2)) {
+            ret = 4;
+            break;
+        }
         if (len1 != len2) {
             ret = 6;
             break;
diff --git a/backend/zint.h b/backend/zint.h
index 1c6001c3..c507a0e5 100644
--- a/backend/zint.h
+++ b/backend/zint.h
@@ -31,8 +31,10 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 
 /*
- * For version, see "zintconfig.h"
- * For documentation, see "../docs/manual.txt"
+ * Version: 2.13.0.9 (dev) (see "zintconfig.h")
+ *
+ * For documentation, see "../docs/manual.txt" or "../docs/manual.html" or online at
+ * https://zint.org.uk/manual/
  */
 
 #ifndef ZINT_H
diff --git a/tools/update_version.php b/tools/update_version.php
index 6236e1ff..671c8c65 100644
--- a/tools/update_version.php
+++ b/tools/update_version.php
@@ -2,7 +2,7 @@
 /* Update Zint version number in various files */
 /*
     libzint - the open source barcode library
-    Copyright (C) 2020-2023 Robin Stuart <rstuart114@gmail.com>
+    Copyright (C) 2020-2024 Robin Stuart <rstuart114@gmail.com>
 */
 /* SPDX-License-Identifier: BSD-3-Clause */
 
@@ -49,6 +49,8 @@ $v_base_str = $v_str = "$major.$minor.$release";
 if ($build) {
     $v_str .= ".$build";
 }
+$v_str_dev = $build ? $v_str . ' (dev)' : $v_str;
+
 $rc_str1 = "$major,$minor,$release,$build";
 $rc_str2 = "$major.$minor.$release.$build";
 
@@ -202,6 +204,10 @@ if (!file_put_contents($file, implode("\n", $lines))) {
     exit("$basename: ERROR: Could not write file \"$file\"" . PHP_EOL);
 }
 
+// README
+
+year_replace($data_dirname . 'README', $year);
+
 // README.linux
 
 version_replace(4, $data_dirname . 'README.linux', '/zint-[0-9]/', '/[0-9][0-9.]+/', $v_base_str);
@@ -218,6 +224,10 @@ version_replace(1, $data_dirname . 'zint.nsi', '/^!define +PRODUCT_VERSION/', '/
 
 rc_replace($data_dirname . 'backend/libzint.rc', $rc_str1, $rc_str2, $year);
 
+// backend/zint.h
+
+version_replace(1, $data_dirname . 'backend/zint.h', '/^ \* Version: /', '/[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?( \(dev\))?/', $v_str_dev);
+
 // backend/zintconfig.h
 
 $file = $data_dirname . 'backend/zintconfig.h';
@@ -296,9 +306,7 @@ version_replace(1, $data_dirname . 'backend_qt/backend_qt.pro', '/^VERSION[ \t]*
 // docs/manual.pmd
 
 version_replace(1, $data_dirname . 'docs/manual.pmd', '/^% Version /', '/[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?( \(dev\))?/', $v_str);
-if ($build !== 9) { // Don't update if marking version as dev
-    version_replace(1, $data_dirname . 'docs/manual.pmd', '/^The current stable version of Zint/', '/[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?/', $v_str);
-}
+version_replace(1, $data_dirname . 'docs/manual.pmd', '/^The current stable version of Zint/', '/[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?/', $v_base_str);
 
 // docs/zint.1.pmd