---
title: "Change Log"
slug: "change-log-exchange-spec"
updated: 2024-05-07T14:50:49Z
published: 2024-05-07T14:50:49Z
canonical: "help.tritondigital.com/change-log-exchange-spec"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.tritondigital.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Change Log

#### Exchange Specification for DSPs

| **Date** | **Change** |
| --- | --- |
| 2024-05-03 | - New attributes added to [Bid Request table](/user/docs/bid-request): - imp.ext.tid - imp.ext.gpid - imp.rwdd - device.ext.ifa_type |
| 2024-02-12 | - gpp and gpp_sid attributes added to regs section of [Bid Request table](/user/docs/bid-request). |
| 2023-08-21 | - [site,app,ota].content.**genre** attribute added to [Bid Request table](/user/docs/bid-request). |
| 2023-08-11 | - [site,app,ota].content.**id** attribute added to [Bid Request table](/user/docs/bid-request). |
| 2022-12-20 | - Updated [Bid Request Example](/user/docs/bid-request#bid-request-example). - Updated [imp.audio.maxbitrate](/user/docs/bid-request#imp-audio) example value to 576. *Note that the maxbitrate of 576 might not be valid until December 23, 2022 or possibly later*. |
| 2022-11-08 | - New bid request attribute: **[user.ext.consent](/v1/docs/bid-request#user-ext)** |
| 2022-11-01 | - Big request attributes that are not provided for [OTA](/user/docs/bid-request#provided-for-ota) (Over The Air); are indicated. |
| 2022-09-09 | - The **[source.ext.schain.nodes](/user/docs/bid-request#source-ext-schain)** attribute now supports multiple nodes. |
| 2022-09-08 | - New section: [Points of Presence](/user/docs/points-of-presence). - New bid request fields: **imp.pmp.deals.ext** and **[imp.pmp.deals.ext.guaranteed](/user/docs/bid-request#imp-pmp-deals)** |
| 2022-08-26 | - New bid request attributes for [OTA](/user/docs/bid-request#provided-for-ota) (Over The Air); OTA is a Triton Digital specification based on the OpenRTB DOOH specification that is currently under review at the IAB Tech Lab. *More information about using OTA will be available soon*. |
| 2022-04-11 | - For [Open RTB Implementation Request](/v1/docs/bid-request): [audio.delivery](/v1/docs/bid-request#imp-audio): the example is no longer indicated as an *exact value always sent*, because we now support all values (1, 2, 3). |
| 2021-01-19 | - New item in [Open RTB Implementation Request](/v1/docs/bid-request): [coppa](/v1/docs/bid-request#regs-ext). |
| 2020-10-03 | - Five new items added to [site/app.content](/v1/docs/bid-request#site-app-ota) in [Open RTB Implementation Request](/v1/docs/bid-request): series, season, episode, title, url. |
| 2020-09-02 | - Numerous updates to the OpenRTB [Request](/v1/docs/bid-request) attribute table. |
| 2019-12-02 | - Title changed from *a2x Specification for DSPs* to *Triton Digital Exchange Specification for DSPs*. |
| 2019-02-29 | - In [OpenRTB Implementation, Response](/v1/docs/bid-request) **seatbid.seat** is **mandatory**. |
| 2018-09-18 | - Added site.cat to [Inventory Targeting](/v1/docs/inventory-targeting) and [OpenRTB Implementation, Request](/v1/docs/bid-request#site-app-ota). |
| 2018-06-01 | - Updated the "Campaigns" and "Tests" grids in [Functional Tests](/v1/docs/functional-tests). |
| 2018-02-07 | - In [inventory targeting](/v1/docs/inventory-targeting), **site.domain** is now sent when it is available. - Clarification to the warning in [DSP Validation Tests](/v1/docs/dsp-validation-tests); At this point the DSP is live and will be invoiced for all impressions. |
| 2018-02-05 | - •Clarification added to Requirements on **Buyer's Bid Response > [Categories & Brands](/v1/docs/requirements-on-buyers-bid-response#categories-brands)** regarding the requirement for the "cat" field. |
| 2017-12-07 | - Clarification of audio format duration in [Requirements on Buyer's Bid Response](/v1/docs/requirements-on-buyers-bid-response#audio-formats). |
| 2017-09-27 | - Corrected small typographical error. |
| 2017-08-03 | - Small improvements for readability. |
| 2017-07-24 | - Title of this document changed from *a2x® Guide for DSPs* to *a2x® Specification for DSPs*. |
| 2017-06-21 | - The "[OpenRTB Implementation](/v1/docs/openrtb-implementation)" and "[DSP Validation Tests](/v1/docs/dsp-validation-tests)" sections were added to this document from two previously separate documents. |