Update readme to remove note about 2022.04, and instead include new d…

…etails about upcoming 2022.04.01

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

README.md

@@ -6,11 +6,7 @@
 <!-- Delete above HTML and insert markdown for dockerhub : ![Pi-hole](https://pi-hole.github.io/graphics/Vortex/Vortex_with_text.png) -->
 
 ## Upgrade Notes
-For `2022.04`: This release seeks to address some issues brought about by changes made to Docker in version 20.10.14
-
-Please note, for now at least, that NET_ADMIN is a required capability
-
-See: https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
+As of `2022.04.01`, you no longer need to set `CAP_NET_ADMIN` if you are not using Pi-hole as your DHCP server. The container will only try to set caps that are explicitly granted (or natively available)
 
 In `2022.01` and later, the default `DNSMASQ_USER` has been changed to `pihole`, however this may cause issues on some systems such as Synology, see Issue [#963](https://github.com/pi-hole/docker-pi-hole/issues/963) for more information.
 
@@ -44,7 +40,7 @@ services:
       - './etc-dnsmasq.d:/etc/dnsmasq.d'    
     #   https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
     cap_add:
-      - NET_ADMIN # Currently required for 2022.04 due to changes introduced in Docker 20.10.14
+      - NET_ADMIN # Required if you are using Pi-hole as yuour DHCP server, else not needed
     restart: unless-stopped
 ```
 2. Run `docker-compose up -d` to build and start pi-hole