... as it has been around for years.
While it's conceivable that the syntax may change
in the future there are no current plans.
<!-- XXX: This section contains duplicates content from the
client-specific-tag documentation. -->
-<warning>
-<para>
- This is an experimental feature. The syntax is likely to change in future versions.
-</para>
-</warning>
-
<para>
Client tag patterns are not set based on HTTP headers but based on
the client's IP address. Users can enable them themselves, but the