Doc update

1 files changed, 13 insertions, 0 deletions

diff --git a/doc/s6-tcpserver4.html b/doc/s6-tcpserver4.html
index e0270e0..625b8df 100644
--- a/doc/s6-tcpserver4.html
+++ b/doc/s6-tcpserver4.html
@@ -40,6 +40,9 @@ socket and stdout writing to it. </li>
  <li> Depending on the verbosity level, it logs what it does to stderr. </li>
  <li> It runs until killed by a signal. Depending on the received
 signal, it may kill its children before exiting. </li>
+ <li> s6-tcpserver4 actually doesn't do any of this itself. It is
+a wrapper, rewriting the command line and executing into a chain
+of programs that perform those duties. </li>
 </ul>
 
 <h2> Environment variables </h2>
@@ -117,6 +120,16 @@ possible overhead. Features such as additional environment variables,
 access control and DNS resolution are provided
 via the <a href="s6-tcpserver-access.html">s6-tcpserver-access</a>
 program. </li>
+ <li> In previous releases of s6-networking, s6-tcpserver4 was
+monolithic: it did the work of
+<a href="s6-tcpserver4-socketbinder.html">s6-tcpserver4-socketbinder</a>,
+<a href="http://skarnet.org/software/s6/s6-applyuidgid.html">s6-applyuidgid</a> and
+<a href="s6-tcpserver4d.html">s6-tcpserver4d</a> itself. The functionality has now
+been split into several different programs because some service startup
+schemes require the daemon to get its socket from an external
+program instead of creating and binding it itself. The most obvious
+application of this is upgrading a long-lived process without
+losing existing connections. </li>
 </ul>
 
 </body>