# NetBox v4.2 ## v4.2.0 (2025-01-06) ### Breaking Changes * Support for the Django admin UI has been completely removed. (The Django admin UI was disabled by default in NetBox v4.0.) * This release drops support for PostgreSQL 12. PostgreSQL 13 or later is required to run this release. * NetBox has adopted collation-based natural ordering for many models. This may alter the order in which some objects are listed by default. * Automatic redirects from pre-v4.1 UI views for virtual disks have been removed. * The `site` and `provider_network` foreign key fields on `circuits.CircuitTermination` have been replaced by the `termination` generic foreign key. * The `site` foreign key field on `ipam.Prefix` has been replaced by the `scope` generic foreign key. * The `site` foreign key field on `virtualization.Cluster` has been replaced by the `scope` generic foreign key. * The `circuit` foreign key field on `circuits.CircuitGroupAssignment` has been replaced by the `member` generic foreign key. * Obsolete nested REST API serializers have been removed. These were deprecated in NetBox v4.1 under [#17143](https://github.com/netbox-community/netbox/issues/17143). ### New Features #### Assign Multiple MAC Addresses per Interface ([#4867](https://github.com/netbox-community/netbox/issues/4867)) MAC addresses are now managed as independent objects, rather than attributes on device and VM interfaces. NetBox now supports the assignment of multiple MAC addresses per interface, and allows a primary MAC address to be designated for each. #### Quick Add UI Widget ([#5858](https://github.com/netbox-community/netbox/issues/5858)) A new UI widget has been introduced to enable conveniently creating new related objects while creating or editing an object. For instance, it is now possible to create and assign a new device role when creating or editing a device from within the device form. #### VLAN Translation ([#7336](https://github.com/netbox-community/netbox/issues/7336)) User can now define policies which track the translation of VLAN IDs on IEEE 802.1Q-encapsulated interfaces. Translation policies can be reused across multiple interfaces. #### Virtual Circuits ([#13086](https://github.com/netbox-community/netbox/issues/13086)) New models have been introduced to support the documentation of virtual circuits as an extension to the physical circuit modeling already supported. This enables users to accurately reflect point-to-point or multipoint virtual circuits atop infrastructure comprising physical circuits and cables. #### Q-in-Q Encapsulation ([#13428](https://github.com/netbox-community/netbox/issues/13428)) NetBox now supports the designation of customer VLANs (CVLANs) and service VLANs (SVLANs) to support IEEE 802.1ad/Q-in-Q encapsulation. Each interface can now have it mode designated "Q-in-Q" and be assigned an SVLAN. ### Enhancements * [#6414](https://github.com/netbox-community/netbox/issues/6414) - Prefixes can now be scoped by region, site group, site, or location * [#7699](https://github.com/netbox-community/netbox/issues/7699) - Virtualization clusters can now be scoped by region, site group, site, or location * [#9604](https://github.com/netbox-community/netbox/issues/9604) - The scope of a circuit termination now include a region, site group, site, location, or provider network * [#10711](https://github.com/netbox-community/netbox/issues/10711) - Wireless LANs can now be scoped by region, site group, site, or location * [#11279](https://github.com/netbox-community/netbox/issues/11279) - Improved the use of natural ordering for various models throughout the application * [#12596](https://github.com/netbox-community/netbox/issues/12596) - Extended the virtualization clusters REST API endpoint to report on allocated VM resources * [#16547](https://github.com/netbox-community/netbox/issues/16547) - Add a geographic distance field for circuits * [#16783](https://github.com/netbox-community/netbox/issues/16783) - Add an operational status field for inventory items * [#17195](https://github.com/netbox-community/netbox/issues/17195) - Add a color field for power outlets ### Plugins * [#15093](https://github.com/netbox-community/netbox/issues/15093) - Introduced the `events_pipeline` configuration parameter, which allows plugins to hook into NetBox event processing * [#16546](https://github.com/netbox-community/netbox/issues/16546) - NetBoxModel now provides a default `get_absolute_url()` method * [#16971](https://github.com/netbox-community/netbox/issues/16971) - Plugins can now easily register system jobs to perform background tasks * [#17029](https://github.com/netbox-community/netbox/issues/17029) - Registering a `PluginTemplateExtension` subclass for a single model has been deprecated (replace `model` with `models`) * [#18023](https://github.com/netbox-community/netbox/issues/18023) - Extend `register_model_view()` to handle list views ### Other Changes * [#16136](https://github.com/netbox-community/netbox/issues/16136) - Removed support for the Django admin UI * [#17165](https://github.com/netbox-community/netbox/issues/17165) - All obsolete nested REST API serializers have been removed * [#17472](https://github.com/netbox-community/netbox/issues/17472) - The legacy staged changes API has been deprecated, and will be removed in Netbox v4.3 * [#17476](https://github.com/netbox-community/netbox/issues/17476) - Upgrade to Django 5.1 * [#17752](https://github.com/netbox-community/netbox/issues/17752) - Bulk object import URL paths have been renamed from `*_import` to `*_bulk_import` * [#17761](https://github.com/netbox-community/netbox/issues/17761) - Optional choice fields now store empty values as null (rather than empty strings) in the database * [#18093](https://github.com/netbox-community/netbox/issues/18093) - Redirects for pre-v4.1 virtual disk UI views have been removed ### REST API Changes * Added the following endpoints: * `/api/circuits/virtual-circuits/` * `/api/circuits/virtual-circuit-terminations/` * `/api/dcim/mac-addresses/` * `/api/ipam/vlan-translation-policies/` * `/api/ipam/vlan-translation-rules/` * circuits.Circuit * Added the optional `distance` and `distance_unit` fields * circuits.CircuitGroupAssignment * Replaced the `circuit` field with `member_type` and `member_id` to support virtual circuit assignment * circuits.CircuitTermination * Removed the `site` & `provider_network` fields * Added the `termination_type` & `termination_id` fields to facilitate termination assignment * Added the read-only `termination` field * dcim.Interface * The `mac_address` field is now read-only * Added the `primary_mac_address` relation to dcim.MACAddress * Added the read-only `mac_addresses` list * Added the `qinq_svlan` relation to ipam.VLAN * Added the `vlan_translation_policy` relation to ipam.VLANTranslationPolicy * Added `mode` choice "Q-in-Q" * dcim.InventoryItem * Added the optional `status` choice field * dcim.Location * Added the read-only `prefix_count` field * dcim.PowerOutlet * Added the optional `color` field * dcim.Region * Added the read-only `prefix_count` field * dcim.SiteGroup * Added the read-only `prefix_count` field * ipam.Prefix * Removed the `site` field * Added the `scope_type` & `scope_id` fields to facilitate scope assignment * Added the read-only `scope` field * ipam.VLAN * Added the optional `qinq_role` selection field * Added the `qinq_svlan` recursive relation * virtualization.Cluster * Removed the `site` field * Added the `scope_type` & `scope_id` fields to facilitate scope assignment * Added the read-only `scope` field * virtualization.Cluster * Added the read-only fields `allocated_vcpus`, `allocated_memory`, and `allocated_disk` * virtualization.VMInterface * The `mac_address` field is now read-only * Added the `primary_mac_address` relation to dcim.MACAddress * Added the read-only `mac_addresses` list * Added the `qinq_svlan` relation to ipam.VLAN * Added the `vlan_translation_policy` relation to ipam.VLANTranslationPolicy * Added `mode` choice "Q-in-Q" * wireless.WirelessLAN * Added the `scope_type` & `scope_id` fields to support scope assignment * Added the read-only `scope` field