diff --git a/Changes.txt b/Changes.txt
index d1747b01..3c077f3f 100644
--- a/Changes.txt
+++ b/Changes.txt
@@ -1,6 +1,13 @@
 /**
 @page changes Changes
 
+
+# 0.3.8 June 11 2016
+
+- Added workbook functions to set custom document properties. See
+  `workbook_set_custom_property_string()` and @ref doc_custom_properties.c.
+
+
 # 0.3.7 June 2 2016
 
 - Added updated Cocoapods file for Cocoapods 1.0.0. This also add support for
diff --git a/Makefile b/Makefile
index ed5ac2b1..06ad92b7 100644
--- a/Makefile
+++ b/Makefile
@@ -111,7 +111,7 @@ release: releasecheck
 
 	@echo
 	@echo "Pushing the cocoapod ..."
-	$(Q)pod trunk push libxlsxwriter.podspec
+	$(Q)pod trunk push libxlsxwriter.podspec --use-libraries
 
 	@echo
 	@echo "Finished. Opening files."
diff --git a/cocoapods/libxlsxwriter-umbrella.h b/cocoapods/libxlsxwriter-umbrella.h
index 89bc4473..d5fd0c30 100644
--- a/cocoapods/libxlsxwriter-umbrella.h
+++ b/cocoapods/libxlsxwriter-umbrella.h
@@ -6,6 +6,7 @@
 #import "common.h"
 #import "content_types.h"
 #import "core.h"
+#import "custom.h"
 #import "drawing.h"
 #import "format.h"
 #import "hash_table.h"
diff --git a/dev/release/release_check.sh b/dev/release/release_check.sh
index 4a4b7748..339723c1 100755
--- a/dev/release/release_check.sh
+++ b/dev/release/release_check.sh
@@ -169,7 +169,7 @@ function check_pod_spec {
             exit 1
         else
             echo "    Running lint...";
-            pod spec lint libxlsxwriter.podspec
+            pod spec lint libxlsxwriter.podspec --use-libraries
             check_pod_spec
          fi
     fi
diff --git a/include/xlsxwriter.h b/include/xlsxwriter.h
index b341118c..6c2b42e9 100644
--- a/include/xlsxwriter.h
+++ b/include/xlsxwriter.h
@@ -18,6 +18,6 @@
 #include "xlsxwriter/format.h"
 #include "xlsxwriter/utility.h"
 
-#define LXW_VERSION "0.3.7"
+#define LXW_VERSION "0.3.8"
 
 #endif /* __LXW_XLSXWRITER_H__ */
diff --git a/libxlsxwriter.podspec b/libxlsxwriter.podspec
index 0302b95f..06bf817d 100644
--- a/libxlsxwriter.podspec
+++ b/libxlsxwriter.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name                  = "libxlsxwriter"
-  s.version               = "0.3.7"
+  s.version               = "0.3.8"
   s.summary               = "Libxlsxwriter: A C library for creating Excel XLSX files."
   s.ios.deployment_target = "6.0"
   s.osx.deployment_target = "10.8"