diff --git a/scripts/release.sh b/scripts/release.sh
index 77fcf77..0d891fb 100755
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -13,6 +13,7 @@ INPUT_UI_DIR=${INPUT_DIR}/ui
 INPUT_JS_FILE=${INPUT_DIR}/diff2html.js
 INPUT_JS_UI_FILE=${INPUT_UI_DIR}/js/diff2html-ui.js
 INPUT_CSS_FILE=${INPUT_UI_DIR}/css/diff2html.css
+INPUT_TYPINGS_D_TS_FILE=${INPUT_DIR}/diff2html.d.ts
 
 GENERATED_TEMPLATES_FILE=${INTPUT_TEMPLATES_DIR}/diff2html-templates.js
 
@@ -23,6 +24,7 @@ OUTPUT_JS_UI_FILE=${OUTPUT_DIR}/diff2html-ui.js
 OUTPUT_MIN_JS_UI_FILE=${OUTPUT_DIR}/diff2html-ui.min.js
 OUTPUT_CSS_FILE=${OUTPUT_DIR}/diff2html.css
 OUTPUT_MIN_CSS_FILE=${OUTPUT_DIR}/diff2html.min.css
+OUTPUT_TYPINGS_D_TS_FILE=${OUTPUT_DIR}/diff2html.d.ts
 
 echo "Creating diff2html release ..."
 
@@ -49,4 +51,7 @@ browserify -e ${INPUT_JS_UI_FILE} -o ${OUTPUT_JS_UI_FILE}
 echo "Minifying ${OUTPUT_JS_UI_FILE} to ${OUTPUT_MIN_JS_UI_FILE}"
 uglifyjs ${OUTPUT_JS_UI_FILE} -c -o ${OUTPUT_MIN_JS_UI_FILE}
 
+echo "Copying types ${INPUT_TYPINGS_D_TS_FILE} to ${OUTPUT_TYPINGS_D_TS_FILE}"
+cp -f ${INPUT_TYPINGS_D_TS_FILE} ${OUTPUT_TYPINGS_D_TS_FILE}
+
 echo "diff2html release created successfully!"
diff --git a/typescript/diff2html.d.ts b/src/diff2html.d.ts
similarity index 98%
rename from typescript/diff2html.d.ts
rename to src/diff2html.d.ts
index 561a10c..cea93f6 100644
--- a/typescript/diff2html.d.ts
+++ b/src/diff2html.d.ts
@@ -9,6 +9,7 @@ declare namespace Diff2Html {
     inputFormat?: 'diff' | 'json';
     outputFormat?: 'line-by-line' | 'side-by-side';
     showFiles?: boolean;
+    diffStyle?: 'word' | 'char';
     matching?: 'lines' | 'words' | 'none';
     matchWordsThreshold?: number;
     matchingMaxComparisons?: number;
diff --git a/typescript/diff2html-tests.ts b/typescript/diff2html-tests.ts
deleted file mode 100644
index ad1f81f..0000000
--- a/typescript/diff2html-tests.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-/// <reference path="./diff2html.d.ts" />
-
-import Diff2Html = require('diff2html');
-
-let d2h = Diff2Html.Diff2Html;
-
-class Diff2HtmlOptionsImpl implements Diff2Html.Options {
-    constructor (public inputFormat: 'diff' | 'json') {
-    }
-}
-
-let strInput =
-        'diff --git a/sample b/sample\n' +
-        'index 0000001..0ddf2ba\n' +
-        '--- a/sample\n' +
-        '+++ b/sample\n' +
-        '@@ -1 +1 @@\n' +
-        '-test\n' +
-        '+test1r\n';
-
-let strConfiguration = new Diff2HtmlOptionsImpl('diff');
-let diffInput = d2h.getJsonFromDiff(strInput, strConfiguration);
-
-let diffConfiguration = new Diff2HtmlOptionsImpl('json');
-let htmlString = d2h.getPrettyHtml(diffInput, diffConfiguration);
-console.log(htmlString);