diff --git a/ChangeLog.d/mbedtls3.0.txt b/ChangeLog.d/mbedtls3.0.txt
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+++ b/ChangeLog.d/mbedtls3.0.txt
@@ -0,0 +1,3 @@
+Changes
+   * There is ongoing work for the next release (= Mbed TLS 3.0.0 branch to
+     be released 2021-xx-xx), including various API-breaking changes.