Changelog for #2602

CHANGELOG.md

@@ -58,6 +58,7 @@ NetBox now supports modeling physical cables for console, power, and interface c
 * [#2585](https://github.com/digitalocean/netbox/issues/2585) - Prevent cable connections that include a virtual interface
 * [#2586](https://github.com/digitalocean/netbox/issues/2586) - Added tests for the Cable model's clean() method
 * [#2593](https://github.com/digitalocean/netbox/issues/2593) - Fix toggling of connected cable's status
+* [#2602](https://github.com/digitalocean/netbox/issues/2602) - Return HTTP 204 when no new IPs/prefixes are available for provisioning
 
 ## API Changes
 
@@ -77,6 +78,7 @@ NetBox now supports modeling physical cables for console, power, and interface c
 * The field `interface_ordering` has been removed from the DeviceType serializer
 * Added a `description` field to the CircuitTermination serializer
 * Added `ipaddress_count` to InterfaceSerializer to show the count of assigned IP addresses for each interface
+* The `available-prefixes` and `available-ips` IPAM endpoints now return an HTTP 204 response instead of HTTP 400 when no new objects can be created
 
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