Update 4.0.0-rc.1 release notes

(cherry picked from commit fd49158)

Author: michaelklishin

release-notes/4.0.0.md

@@ -2,7 +2,8 @@
 
 RabbitMQ `4.0.0-rc.1` is a preview of a new major release.
 
-Starting June 1st, 2024, community support for this series will only be provided to [regularly contributing users](https://github.com/rabbitmq/rabbitmq-server/blob/main/COMMUNITY_SUPPORT.md) and those who hold a valid [commercial support license](https://tanzu.vmware.com/rabbitmq/oss).
+Starting June 1st, 2024, community support for this series will only be provided to [regularly contributing users](https://github.com/rabbitmq/rabbitmq-server/blob/main/COMMUNITY_SUPPORT.md)
+and those who hold a valid [commercial support license](https://tanzu.vmware.com/rabbitmq/oss).
 
 ## Highlights
 
@@ -349,11 +350,11 @@ GitHub issues: [#8334](https://github.com/rabbitmq/rabbitmq-server/pull/8334), [
 
 ### Dependency Changes
 
- * Ra was [upgraded to `2.13.6`](https://github.com/rabbitmq/ra/releases)
- * Khepri was [upgraded to `0.14.0`](https://github.com/rabbitmq/khepri/releases)
+ * Ra was [upgraded to `2.14.0`](https://github.com/rabbitmq/ra/releases)
+ * Khepri was [upgraded to `0.15.0`](https://github.com/rabbitmq/khepri/releases)
  * Cuttlefish was [upgraded to `3.4.0`](https://github.com/Kyorai/cuttlefish/releases)
 
 ## Source Code Archives
 
-To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-4.0.0-beta.4.tar.xz`
+To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-4.0.0-rc.1.tar.xz`
 instead of the source tarball produced by GitHub.