add a note about the unsupported ciphers

Author: renetapopova

modules/ROOT/pages/security/ssl-framework.adoc

@@ -1033,6 +1033,9 @@ One can set up a Neo4j configuration by specifying the list of cipher suites tha
 Valid values depend on the current JRE and SSL provider.
 For Oracle JRE here is the list of supported ones - https://docs.oracle.com/en/java/javase/21/docs/specs/security/standard-names.html#jsse-cipher-suite-names.
 
+Note that CBC (cipher block chaining)-based ciphers (RFC 8447), used in TLS v1.2 network encryption, are not supported in 2025.01.
+See xref:changes-deprecations-removals.adoc[] for more information.
+
 .Bolt
 [source, properties]
 ----