Adapt ChangeLog
diff --git a/ChangeLog b/ChangeLog
index 798e84a..2bb3850 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -38,6 +38,9 @@
      for the parameter.
    * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
      sni entry parameter. Reported by inestlerode in #560.
+   * Add DER-encoded test CRTs to library/certs.c, allowing
+     the example programs ssl_server2 and ssl_client2 to be run
+     if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254.
 
 Changes
    * Return from various debugging routines immediately if the