diff --git a/database/stylesdata.h b/database/stylesdata.h
index c23c280f3..b462e8fa1 100644
--- a/database/stylesdata.h
+++ b/database/stylesdata.h
@@ -6791,5 +6791,39 @@ style_record styles_table [] =
     /* userstring3 */ "",
     /* backgroundcolor */ "#FFFFFF",
   },
+  // https://ubsicap.github.io/usfm/characters/index.html?highlight=sup#sup-sup Todo check this.
+  {
+    /* marker */ "sup",
+    /* name */ "Superscript text",
+    /* info */ "Typically for use in critical edition footnotes.",
+    /* category */ "cs",
+    /* type */ 4,
+    /* subtype */ 0,
+    /* fontsize */ 12,
+    /* italic */ 0,
+    /* bold */ 0,
+    /* underline */ 0,
+    /* smallcaps */ 0,
+    /* superscript */ 1,
+    /* justification */ 0,
+    /* spacebefore */ 0,
+    /* spaceafter */ 0,
+    /* leftmargin */ 0,
+    /* rightmargin */ 0,
+    /* firstlineindent */ 0,
+    /* spancolumns */ 0,
+    /* color */ "#000000",
+    /* print */ 1,
+    /* userbool1 */ 0,
+    /* userbool2 */ 0,
+    /* userbool3 */ 0,
+    /* userint1 */ 0,
+    /* userint2 */ 0,
+    /* userint3 */ 0,
+    /* userstring1 */ "",
+    /* userstring2 */ "",
+    /* userstring3 */ "",
+    /* backgroundcolor */ "#FFFFFF",
+  },
 };
 
diff --git a/help/changelog.html b/help/changelog.html
index 2788dcde7..d5597b038 100644
--- a/help/changelog.html
+++ b/help/changelog.html
@@ -1,5 +1,8 @@
 <h1>ChangeLog</h1>
 
+<p>5.1.009: Support for USFM marker \sup for superscript text.</p>
+<p>5.1.009: Downloading exports in the Windows app works again.</p>
+<p>5.1.009: Finding text in the Windows app user interface works again.</p>
 <p>5.1.007: Outputs a blank line for the \b style for Web export.</p>
 <p>5.1.007: Outputs the chapter number also for one-chapter books.</p>
 <p>5.1.006: The start of a line of poetry no longer overlaps a chapter number in drop caps in web export.</p>