API Changelog

This page summarizes response-format changes that can affect client integrations. Exact release dates for older versions were not maintained in the documentation; the availability dates below are placeholders and should be filled in from release records where needed.

Last updated: 2026-07-06

Version Selection

The public APIs return the current response format by default. Clients can request an older response format by sending the x-api-version header, or by configuring the API version override for an API key in the Dashboard.

Vehicle API

Current response version: 1.4.2

Version	Available from	Summary
1.4.2	TBD	Current format. Adds standardColorName and dimensions to MMR output compared with 1.4.1.
1.4.1	TBD	Adds detailed timing/confidence and vehicle-generation fields compared with 1.4; keeps standardColorName and dimensions out of the legacy response.
1.4	TBD	Provides the modern top-level response shape with nodetime, version and data.vehicles, but excludes newer detailed fields such as generation/variation, text confidence and normalized confidence.
1.0	TBD	Legacy compatibility format. Removes vehicle bounds and markings, removes several modern plate/MMR fields, normalizes missing plate values to empty strings, suppresses missing MMR blocks and exposes combined make/model confidence as makeAndModelConfidence.

Vehicle 1.4.2

1.4.2 is the current Vehicle API model version.

Notable fields available in the current model include:

• data.vehicles[].bounds
• data.vehicles[].markings
• plate colors, plate dimensions and plate character details
• MMR colorName, standardColorName, dimensions, generation and variation
• top-level recognitiontime, startuptime, nodetime and version

Vehicle 1.4.1

The compatibility builder for 1.4.1 excludes:

• standardColorName
• dimensions

Use this version when a client expects the 1.4.1 response and cannot yet handle the added MMR standard color or physical dimensions fields.

Vehicle 1.4

The compatibility builder for 1.4 excludes:

• MMR generation and variation fields
• recognitiontime
• startuptime
• plate textConfidence
• plate normalizedConfidence
• MMR standardColorName
• MMR dimensions

Vehicle 1.0

The 1.0 builder is the widest compatibility mode. It excludes modern fields such as:

• plate daColor
• vehicle heading and headingConfidence
• MMR modelConfidence
• plate or marking type
• plate separatedText
• MMR generation and variation fields
• top-level recognitiontime and startuptime
• plate textConfidence and normalizedConfidence
• MMR colorName, standardColorName and dimensions

It also removes vehicle bounds and markings from each vehicle. If MMR is not found, the mmr block is omitted. For found MMR results, the builder preserves legacy behavior by calculating a combined make/model confidence and serializing it as makeAndModelConfidence.

Transportation & Cargo API

Current response version: 1.0.1

Version	Available from	Summary
1.0.1	TBD	Current format. Includes top-level recognitiontime and startuptime.
1.0	TBD	Legacy compatibility format. Excludes recognitiontime and startuptime.

Transport 1.0.1

1.0.1 is the current Transportation & Cargo API model version. Responses contain a data.codes array where each code includes the merged result and optional per-image imageResults.

Transport 1.0

The compatibility builder for 1.0 excludes:

• recognitiontime
• startuptime

Use this version when an existing client expects the original 1.0 response shape.