diff --git a/ChangeLog.d/make_base64_table_access_constant_flow.txt b/ChangeLog.d/make_base64_table_access_constant_flow.txt
new file mode 100644
index 0000000..a119389
--- /dev/null
+++ b/ChangeLog.d/make_base64_table_access_constant_flow.txt
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+Security
+   * Guard against strong local side channel attack against base64 tables by
+    making access aceess to them use constant flow code.
+