note that %expr() has (or will be) removed

diff --git a/doc/antora/modules/installation/pages/upgrade.adoc b/doc/antora/modules/installation/pages/upgrade.adoc
index f54008e415079758b910fcb6257e9eec7c5ddb70..5dc8f29e59a3814a52c58999f637dbf472e943fd 100644 (file)
--- a/doc/antora/modules/installation/pages/upgrade.adoc
+++ b/doc/antora/modules/installation/pages/upgrade.adoc
@@ -710,6 +710,8 @@ xref:reference:xlat/index.adoc[xlat] expansions have been changed from syntax li
 
 `%{integer:...}` has been removed.  Just use a cast, such as `(integer) &Service-Type`.
 
+`%{expr:...}` has been removed.  You can instead use in-place expressions, such as `%{1 + 2}` or `%{&NAS-Port + 14}`.
+
 == New Modules
 
 The following modules are new in v4.