From 9343e7be5ac2941359808f013e107a03f232a377 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 18 Mar 2019 20:03:25 +0000
Subject:  Add upgrade notice to doc/upgrade.html

---
 doc/upgrade.html | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/upgrade.html b/doc/upgrade.html
index 8d1e1af..4f4649a 100644
--- a/doc/upgrade.html
+++ b/doc/upgrade.html
@@ -47,6 +47,12 @@ a s6-rc database is the user who owns the supervision tree. </li>
  <li> Everything now builds as PIC by default no matter
 the toolchain's settings. Use the <tt>--disable-all-pic</tt> configure
 option to build executables and static libraries as non-PIC. </li>
+ <li> The underlying s6 dependency needs a major version upgrade.
+It is recommended to first stop all your services, then upgrade
+s6 and s6-rc, then immediately restart your supervision tree,
+then start your services again. Failure to do so *will* cause issues
+if you're relying on s6-ftrigrd notifications (which is the case with
+services managed by s6-rc). </li>
 </ul>
 
 <h2> in 0.4.1.0 </h2>
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