changelog 1.4 beta 3 (#345)

Signed-off-by: Usman Saleem <usman@usmans.info>

Co-authored-by: Tim Beiko <t.beiko23@gmail.com>

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## 1.4 Beta 3 
+
+### Additions and Improvements 
+
+- CLI option to enable TLS client auth for JSON-RPC HTTP [\#340](https://github.com/hyperledger/besu/pull/340)
+
+Following cli options are added to enable TLS client authentication and trusting client certificates.
+~~~
+--rpc-http-tls-client-auth-enabled - Enable TLS client authentication for the JSON-RPC HTTP service (default: false)
+--rpc-http-tls-known-clients-file - Path to file containing client's certificate common name and fingerprint for client authentication.
+--rpc-http-tls-ca-clients-enabled - Enable to accept clients certificate signed by a valid CA for client authentication (default: false)
+~~~
+If client-auth is enabled, then user must either enable CA signed clients OR provide a known-clients file. An error is reported if both CA signed clients is disabled and known-clients file is not specified.
+
+### Bug Fixes 
+
+- 
+
 ## 1.4 Beta 2 
 
 ### Additions and Improvements