diff --git a/appendices/migration54.xml b/appendices/migration54.xml
index 3f80d5d93d..046dd3bbb4 100644
--- a/appendices/migration54.xml
+++ b/appendices/migration54.xml
@@ -72,18 +72,18 @@
     <simpara>
      <link linkend="features.safe-mode">Safe mode</link> is no
      longer supported. Any applications that rely on safe mode may need
-     adjustements in terms of security.
+     adjustmentubg, in terms of security.
     </simpara>
    </listitem>
    <listitem>
     <simpara>
      <link linkend="security.magicquotes">Magic quotes</link> has been removed. Applications relying
-     on this feature need to be updated to avoid security issues.
+     on this feature may need to be updated, to avoid security issues.
     </simpara>
     <simpara>
      <function>get_magic_quotes_gpc</function> and <function>get_magic_quotes_runtime</function>
      now always return &false;. <function>set_magic_quotes_runtime</function> raises an
-     <constant>E_CORE_ERROR</constant>.
+     <constant>E_CORE_ERROR</constant> level error.
     </simpara>
    </listitem>
    <listitem>
@@ -102,17 +102,16 @@
     <simpara>
      The <link linkend="control-structures.break">break</link>
      and <link linkend="control-structures.continue">continue</link>
-     statements don't accept variable arguments anymore, i.e. writing
-     <literal>break 1 + foo() * $bar;</literal> is not possible. You can obviously still use
-     static arguments, like <literal>break 2;</literal>.
+     statements no longer accept variable arguments (e.g., <literal>break 1 + foo() * $bar;</literal>).
+     Static arguments still work, such as <literal>break 2;</literal>.
     </simpara>
    </listitem>
    <listitem>
     <simpara>
-     In the <link linkend="book.datetime">date and time extension</link> the timezone can no longer be
+     In the <link linkend="book.datetime">date and time extension</link>, the timezone can no longer be
      set using the TZ environment variable. Instead you have to specify a timezone using the
-     <link linkend="ini.date.timezone">date.timezone</link> ini option or the <function>date_default_timezone_set</function>
-     function. PHP will no longer try to guess the used timezone and instead fall back to "UTC" and issue
+     <link linkend="ini.date.timezone">date.timezone</link> ini option or <function>date_default_timezone_set</function>
+     function. PHP will no longer attempt to guess the timezone, and will instead fall back to "UTC" and issue
      a warning.
     </simpara>
    </listitem>
@@ -123,24 +122,24 @@
      if you try to use them. Offsets of types double, bool and null produce a notice. Numeric strings
      (e.g. <literal>$a['2']</literal>) still work as before. Note that offsets like <literal>'12.3'</literal>
      and <literal>'5 foobar'</literal> are considered non-numeric and produce a warning, but are converted
-     to 12 and 5 respectively for BC reasons.
+     to 12 and 5 respectively, for backward compatibility reasons.
     </simpara>
    </listitem>
    <listitem>
     <simpara>
-     Converting an array to string will now cause an <constant>E_NOTICE</constant>. The result of
-     the cast will still be <literal>"Array"</literal>.
+     Converting an array to string will now generate an <constant>E_NOTICE</constant> level
+     error, and the result of the cast will still be the string <literal>"Array"</literal>.
     </simpara>
    </listitem>
    <listitem>
     <simpara>
-     Turning &null;, &false; or an empty string into an object by adding a property
-     will now emit a warning instead of an <constant>E_STRICT</constant> error.
+     Turning &null;, &false;, or an empty string into an object by adding a property
+     will now emit a <constant>E_WARNING</constant> level instead of <constant>E_STRICT</constant>.
     </simpara>
    </listitem>
    <listitem>
     <simpara>
-     Parameter names that shadow superglobals now cause a fatal error. This prohibits code like
+     Parameter names that shadow super globals now cause a fatal error. This prohibits code like
      <literal>function foo($_GET, $_POST) {}</literal>.
     </simpara>
    </listitem>
@@ -157,15 +156,16 @@
    </listitem>
    <listitem>
     <simpara>
-     <function>htmlentities</function> now emits an <constant>E_STRICT</constant> warning when used with
-     asian character sets, as in that case <function>htmlentities</function> has (and already had before
-     this version) the same functionality as <function>htmlspecialchars</function>.
+     If you use <function>htmlentities</function> with asian character sets, it
+     works like <function>htmlspecialchars</function> - this has always been the
+     case in previous versions of PHP, but now an <constant>E_STRICT</constant>
+     level error is emitted
     </simpara>
    </listitem>
   </itemizedlist>
   <simpara>
-   The following keyword(s) are now reserved and may not be used in function,
-   class, etc. names.
+   The following keywords are now <link linkend="reserved">reserved</link>, and may not be used
+   as names by functions, classes, etc.
   </simpara>
   <itemizedlist>
    <listitem>
@@ -317,7 +317,8 @@
    </listitem>
    <listitem>
     <simpara>
-     PHP-FPM: Added <literal>process.max</literal> setting to control the number of process FPM can fork
+     PHP-FPM: Added the <literal>process.max</literal> setting, to control the number
+     of processes that FPM can fork.
     </simpara>
    </listitem>
   </itemizedlist>
@@ -388,14 +389,8 @@
   <itemizedlist>
    <listitem>
     <simpara>
-     Added optional argument to <function>debug_backtrace</function> and
-     <function>debug_print_backtrace</function> to limit the amount of stack frames returned
-    </simpara>
-   </listitem>
-   <listitem>
-    <simpara>
-     <function>is_a</function> and <function>is_subclass_of</function> now have third
-     boolean parameter, which specifies if the first argument can be a string class name.
+     Added the optional <parameter>limit</parameter> parameter to <function>debug_backtrace</function>
+     and <function>debug_print_backtrace</function>, to limit the amount of stack frames returned.
     </simpara>
    </listitem>
   </itemizedlist>
@@ -403,7 +398,8 @@
   <itemizedlist>
    <listitem>
     <simpara>
-     Added no padding option to <function>openssl_encrypt</function> and <function>openssl_decrypt</function>
+     Added a no padding option to the <function>openssl_encrypt</function> and <function>openssl_decrypt</function>
+     functions.
     </simpara>
    </listitem>
   </itemizedlist>
@@ -683,7 +679,7 @@
   </itemizedlist>
 
   <simpara>
-   Changes in extension behaviour, and new features:
+   Changes in extension behavior, and new features:
   </simpara>
   <itemizedlist>
    <listitem>
@@ -1332,13 +1328,15 @@
      Added support for storing upload progress feedback in session data.
     </simpara>
     <simpara>
-     Changed session.entropy_file to default to /dev/urandom or /dev/arandom if
-    either is present at compile time.
+     Changed <link linkend="ini.session.entropy-file">session.entropy_file</link>, which
+     now defaults to <literal>/dev/urandom</literal> or <literal>/dev/arandom</literal> if
+     either are present at compile time.
     </simpara>
    </listitem>
    <listitem>
     <simpara>
-     <constant>E_ALL</constant> now includes <constant>E_STRICT</constant>.
+     <constant>E_ALL</constant> now includes <constant>E_STRICT</constant> level
+     errors, as per the <link linkend="ini.error-reporting">error_reporting</link>.
     </simpara>
    </listitem>
    <listitem>
@@ -1346,8 +1344,8 @@
      <link linkend="book.snmp">SNMP</link> now has an OOP API.
     </simpara>
     <simpara>
-      Functions now return FALSE on every error condition including SNMP-related
-      (no such instance, end of MIB, etc). Thus, in patricular, breaks previous behaviour
+      Functions now return &false; on every error condition including SNMP-related
+      (no such instance, end of MIB, etc). Thus, in particular, breaks previous behavior
       of get/walk functions returning an empty string on SNMP-related errors.
     </simpara>
     <simpara>