[!WARNING] This is a beta release of NetBox intended for testing and evaluation. Do not use this software in production. Also be aware that no upgrade path is provided to future releases.

Breaking Changes

• Several filters deprecated in v4.0 have been removed (see #15410).
• The unit size for VirtualMachine.disk and VirtualDisk.size been changed from 1 gigabyte to 1 megabyte. Existing values have been updated accordingly.
• The min_vid and max_vid fields on the VLAN group model have been replaced with vid_ranges, an array of starting and ending integer pairs.
• The five individual event type fields on the EventRule model have been replaced by a single event_types array field, indicating each assigned event type by name.
• The UI views & API endpoints associate with change records have been moved from /extras to /core.
• The validate() method on CustomValidator subclasses now must accept the request argument (deprecated in v4.0 by #14279).

New Features

Circuit Groups (#7025)

Circuits can now be assigned to groups for administrative purposes. Each circuit may be assigned to multiple groups, and each assignment may optionally indicate a priority (primary, secondary, or tertiary).

VLAN Group ID Ranges (#9627)

The VLAN group model has been enhanced to support multiple VLAN ID (VID) ranges, whereas previously it could track only a single beginning and ending VID. VID ranges are stored as an array of beginning and ending (inclusive) integer pairs.

Nested Device Modules (#10500)

Module bays can now be nested to effect a hierarchical arrangement of modules within a device. A module installed within a device's module bay may itself have module bays into which child modules may be installed.

Rack Types (#12826)

A new rack type model has been introduced, which functions similarly to the device type model. Users can now define a common make and model of rack, the attributes of which are automatically populated when creating a new rack of that type. Backward compatibility for racks with individually defined characteristics is fully retained.

Plugins Catalog Integration (#14731)

The NetBox UI now integrates directly with the canonical plugins catalog hosted by NetBox Labs. In addition to locally installed plugins, users can explore available plugins and check for newer releases.

User Notifications (#15621)

NetBox now includes a user notification system. Users can subscribe to individual objects and be alerted to changes live within the web interface. Additionally, event rules can now trigger notifications to specific users and/or groups. Plugins can also employ this notification system for their own purposes.

Enhancements

• #7537 - Add a serial number field for virtual machines
• #8198 - Enable uniqueness enforcement for custom field values
• #8984 - Enable filtering of custom script output by log level
• #11969 - Support for tracking airflow on racks and module types
• #14656 - Dynamically render custom field edit form depending on the selected field type
• #15106 - Add distance tracking for wireless links
• #15156 - Add display_url field to all REST API serializers
• #16580 - Enable individual views to enforce LOGIN_REQUIRED selectively (remove AUTH_EXEMPT_PATHS)
• #16782 - Enable filtering of selection choices for object type custom fields
• #16907 - Updated user interface styling
• #17051 - Introduced ISOLATED_DEPLOYMENT config parameter

Plugins

• #15692 - Introduce improved plugin support for background jobs
• #16359 - Enable plugins to embed content in the top navigation bar
• #16726 - Extend PluginTemplateExtension to enable registering multiple models
• #16776 - Added an alerts() method to PluginTemplateExtension for embedding important information about specific objects
• #16886 - Introduced a mechanism for plugins to register custom event types (for use with user notifications)

Other Changes

• #14692 - Change atomic unit for virtual disks from 1GB to 1MB
• #14861 - The URL path for UI views concerning virtual disks has been standardized to /virtualization/virtual-disks/
• #15410 - Removed various deprecated filters
• #15908 - Indicate product edition in release data
• #16388 - Move all change logging resources from extras to core
• #16884 - Remove the ID column from the default table configuration for changelog records
• #16988 - Relocated rack items in navigation menu