* The `boto3` and `dulwich` packages are no longer installed automatically. If needed for S3/git remote data backend support, add them to `local_requirements.txt` to ensure their installation.
* The `device_role` field on the Device model has been renamed to `role`. The `device_role` field has been temporarily retained on the REST API serializer for devices for backward compatibility, but is read-only.
* The `choices` array field has been removed from the CustomField model. Any defined choices are automatically migrated to CustomFieldChoiceSets, accessible via the new `choice_set` field on the CustomField model.
* The `napalm_driver` and `napalm_args` fields (which were deprecated in v3.5) have been removed from the Platform model.
* The `device` and `device_id` filter for interfaces will no longer include interfaces from virtual chassis peers. Two new filters, `virtual_chassis_member` and `virtual_chassis_member_id`, have been introduced to match all interfaces belonging to the specified device's virtual chassis (if any).
* Superusers can no longer retrieve API token keys via the web UI if [`ALLOW_TOKEN_RETRIEVAL`](https://docs.netbox.dev/en/stable/configuration/security/#allow_token_retrieval) is disabled. (The admin view has been removed per [#13044](https://github.com/netbox-community/netbox/issues/13044).)
Management views for the following object types, previously available only under the backend admin interface, have been relocated to the primary user interface:
This migration provides a more consistent user experience and unlocks advanced functionality not feasible using Django's built-in views. The admin UI is scheduled for complete removal in NetBox v4.0.
Administrators now have the option of configuring default permissions for _all_ users globally, regardless of explicit permission or group assignments granted in the database. This is accomplished by defining the `DEFAULT_PERMISSIONS` configuration parameter. By default, all users are granted permission to manage their own bookmarks and API tokens.
Users can now bookmark their favorite objects in NetBox. Bookmarks are accessible under each user's personal bookmarks list, and can also be added as a dashboard widget.
Selection and multi-select custom fields now employ discrete, reusable choice sets containing the valid options for each field. A choice set may be shared by multiple custom fields. Additionally, each choice within a set can now specify both a raw value and a human-friendly label (see [#13241](https://github.com/netbox-community/netbox/issues/13241)). Pre-existing custom field choices are migrated to choice sets automatically during the upgrade process.
#### Restrict Tag Usage by Object Type ([#11541](https://github.com/netbox-community/netbox/issues/11541))
Tags may now be restricted to use with designated object types. Tags that have no specific object types assigned may be used with any object that supports tag assignment.
* [#6391](https://github.com/netbox-community/netbox/issues/6391) - Rename the `device_role` field on Device to `role` for consistency with VirtualMachine
* [#12180](https://github.com/netbox-community/netbox/issues/12180) - All API endpoints for available objects (e.g. IP addresses) now inherit from a common parent view
* [#12794](https://github.com/netbox-community/netbox/issues/12794) - Avoid direct imports of Django's stock user model
* [#12906](https://github.com/netbox-community/netbox/issues/12906) - The `boto3` (AWS) and `dulwich` (git) packages for remote data sources are now optional requirements
* [#13309](https://github.com/netbox-community/netbox/issues/13309) - User account-specific resources have been moved to a new `account` app for better organization
