dnsdist: Document the change in the upgrade guide

diff --git a/pdns/dnsdistdist/docs/upgrade_guide.rst b/pdns/dnsdistdist/docs/upgrade_guide.rst
index 02b4dc6c913bd44490b76bd1b08499c662aa1be5..aeddc9d2952204e6a9be530d957b93bbc4052923 100644 (file)
--- a/pdns/dnsdistdist/docs/upgrade_guide.rst
+++ b/pdns/dnsdistdist/docs/upgrade_guide.rst
@@ -8,6 +8,8 @@ Responses to AXFR and IXFR queries are no longer cached.
 
 Cache-hits are now counted as responses in our metrics.
 
+The :func:`setMaxTCPConnectionsPerClient` limit is now properly applied to DNS over HTTPS connections, in addition to DNS over TCP and DNS over TLS ones.
+
 1.7.0 to 1.7.1
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