</example>
</refsect1>
+ <refsect1>
+ <title>History</title>
+ <para><function>sd_pid_notify()</function> was added in version 219.</para>
+ <para><function>sd_pid_notify_with_fds()</function> was added in version 219.</para>
+ <para><function>sd_pid_notifyf()</function> was added in version 219.</para>
+ <para><function>sd_notify_barrier()</function> was added in version 246.</para>
+ <para><function>sd_pid_notify_barrier()</function> was added in version 254.</para>
+ <para><function>sd_pid_notifyf_with_fds()</function> was added in version 254.</para>
+ </refsect1>
+
<refsect1>
<title>See Also</title>
<para>