rec: Add `max-recursion-depth` to `upgrading.md`

(cherry picked from commit 8c25e5e927245c8ab5bcf21dc3c86973415ec52a)

diff --git a/docs/markdown/recursor/upgrading.md b/docs/markdown/recursor/upgrading.md
index 813eb6f2e3b63a74904c80656afc290e404aaebc..b79c752d630ea3e595b6fada7cd5aa0278ee778c 100644 (file)
--- a/docs/markdown/recursor/upgrading.md
+++ b/docs/markdown/recursor/upgrading.md
@@ -1,6 +1,11 @@
 Before upgrading, it is advised to read the [changelog](../changelog.md).
 When upgrading several versions, please read **all** notes applying to the upgrade.
 
+# 4.0.3 to 4.0.4
+One setting has been added to limit the risk of overflowing the stack:
+
+ - [`max-recursion-depth`](settings.md#max-recursion-depth) defaults to 40 and was unlimited before
+
 # 4.0.0 to 4.0.1
 Two settings have changed defaults, these new defaults decrease CPU usage: