[#227] Release notes updated

RELNOTES

@@ -1,6 +1,6 @@
                 Internet Systems Consortium DHCP Distribution
-                            Version 4.4.3
-                            9 March 2022
+                            Version 4.5.0
+                            X YYYY 2022
                             Release Notes
 
                             NEW FEATURES
@@ -9,15 +9,16 @@ Please note that that ISC DHCP is licensed under the Mozilla Public
 License, MPL 2.0. Please see https://www.mozilla.org/en-US/MPL/2.0/ to read
 the MPL 2.0 license terms.
 
-NOTE: The client and relay components are now End-Of-Life.
-4.4.3 is the final release for those components.
+NOTE: The client and relay components reached their End-Of-Life and are
+no longer part of the ISC DHCP release. 4.4.3 was the final release for
+those components.
 
 For information on how to install, configure, and run this software, as
 well as how to find documentation and report bugs, please consult the
 README file.
 
-ISC DHCP uses the standard GNU configure command for installation. Please review the
-output of `./configure --help` to see what options are available.
+ISC DHCP uses the standard GNU configure command for installation. Please
+review the output of `./configure --help` to see what options are available.
 
 The system has only been tested on Linux and FreeBSD, and may not work on
 other platforms. Please subscribe to the dhcp-users mailing list at
@@ -28,6 +29,12 @@ ISC DHCP is open source software maintained by Internet Systems
 Consortium.  This product includes cryptographic software written
 by Eric Young (eay@cryptsoft.com).
 
+    Changes in 4.5.0
+
+- The client and relay code, along with all the configuration options for them,
+  have been removed.
+  [Gitlab #227]
+
 		Changes since 4.4.2-P1 (New Features)
 
 - Two new OMAPI function calls were added, `dhcpctl_timed_connect()`