diff --git a/reference/intl/dateformatter/settimezone.xml b/reference/intl/dateformatter/settimezone.xml
index 3a4f65e96125..7a5d0401e788 100644
--- a/reference/intl/dateformatter/settimezone.xml
+++ b/reference/intl/dateformatter/settimezone.xml
@@ -13,14 +13,14 @@
    &style.oop;
   </para>
   <methodsynopsis role="IntlDateFormatter">
-   <modifier>public</modifier> <type class="union"><type>bool</type><type>null</type></type><methodname>IntlDateFormatter::setTimeZone</methodname>
+   <modifier>public</modifier> <type>bool</type><methodname>IntlDateFormatter::setTimeZone</methodname>
    <methodparam><type class="union"><type>IntlTimeZone</type><type>DateTimeZone</type><type>string</type><type>null</type></type><parameter>timezone</parameter></methodparam>
   </methodsynopsis>
   <para>
    &style.procedural;
   </para>
   <methodsynopsis>
-   <type class="union"><type>bool</type><type>null</type></type><methodname>datefmt_set_timezone</methodname>
+   <type>bool</type><methodname>datefmt_set_timezone</methodname>
    <methodparam><type>IntlDateFormatter</type><parameter>formatter</parameter></methodparam>
    <methodparam><type class="union"><type>IntlTimeZone</type><type>DateTimeZone</type><type>string</type><type>null</type></type><parameter>timezone</parameter></methodparam>
   </methodsynopsis>
@@ -59,10 +59,33 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns &null; on success and &false; on failure.
+   &return.success;
   </para>
  </refsect1>
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <para>
+   <informaltable>
+    <tgroup cols="2">
+     <thead>
+      <row>
+       <entry>&Version;</entry>
+       <entry>&Description;</entry>
+      </row>
+     </thead>
+     <tbody>
+      <row>
+       <entry>8.3.0</entry>
+       <entry>
+        This function now returns &true; on success; previously it returns &null;.
+       </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </informaltable>
+  </para>
+ </refsect1>
 
  <refsect1 role="examples">
   &reftitle.examples;
diff --git a/reference/intl/intlbreakiterator/settext.xml b/reference/intl/intlbreakiterator/settext.xml
index f8a913e6acc2..3df227700e30 100644
--- a/reference/intl/intlbreakiterator/settext.xml
+++ b/reference/intl/intlbreakiterator/settext.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis role="IntlBreakIterator">
-   <modifier>public</modifier> <type class="union"><type>bool</type><type>null</type></type><methodname>IntlBreakIterator::setText</methodname>
+   <modifier>public</modifier> <type>bool</type><methodname>IntlBreakIterator::setText</methodname>
    <methodparam><type>string</type><parameter>text</parameter></methodparam>
   </methodsynopsis>
   <para>
@@ -37,10 +37,33 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   
+   &return.success;
   </para>
  </refsect1>
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <para>
+   <informaltable>
+    <tgroup cols="2">
+     <thead>
+      <row>
+       <entry>&Version;</entry>
+       <entry>&Description;</entry>
+      </row>
+     </thead>
+     <tbody>
+      <row>
+       <entry>8.3.0</entry>
+       <entry>
+        This method now returns &false; on failure; previously it returns &null;.
+       </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </informaltable>
+  </para>
+ </refsect1>
 
 </refentry>
 <!-- Keep this comment at the end of the file
diff --git a/reference/intl/intlchar/enumcharnames.xml b/reference/intl/intlchar/enumcharnames.xml
index 902175bda8df..e4fb53cd3857 100644
--- a/reference/intl/intlchar/enumcharnames.xml
+++ b/reference/intl/intlchar/enumcharnames.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis role="IntlChar">
-   <modifier>public</modifier> <modifier>static</modifier> <type class="union"><type>bool</type><type>null</type></type><methodname>IntlChar::enumCharNames</methodname>
+   <modifier>public</modifier> <modifier>static</modifier> <type>bool</type><methodname>IntlChar::enumCharNames</methodname>
    <methodparam><type class="union"><type>int</type><type>string</type></type><parameter>start</parameter></methodparam>
    <methodparam><type class="union"><type>int</type><type>string</type></type><parameter>end</parameter></methodparam>
    <methodparam><type>callable</type><parameter>callback</parameter></methodparam>
@@ -77,7 +77,31 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   &return.nullorfalse;
+   &return.success;
+  </para>
+ </refsect1>
+
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <para>
+   <informaltable>
+    <tgroup cols="2">
+     <thead>
+      <row>
+       <entry>&Version;</entry>
+       <entry>&Description;</entry>
+      </row>
+     </thead>
+     <tbody>
+      <row>
+       <entry>8.3.0</entry>
+       <entry>
+        This method now returns &false; on failure; previously it returns &null;.
+       </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </informaltable>
   </para>
  </refsect1>