diff --git a/ChangeLog.d/pkcs1_v21_sign_ext.txt b/ChangeLog.d/pkcs1_v21_sign_ext.txt
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+Features
+   * Add mbedtls_rsa_rsassa_pss_sign_ext() function allowing to generate a
+     signature with a specific salt length. This function allows to validate
+     test cases provided in the NIST's CAVP test suite. Contributed by Cédric
+     Meuter in PR #3183.
+