Protocol Release Notes

24 January, 2024

Added support for multiple fields as part of supporting Protected Audience API:

Response Ext Object, new fields added:

  • ext.igbid


  • ext.igbid.igbuyer

  • ext.igbid.ig_nurl

  • ext.igbid.igbuyer.origin

  • ext.igbid.igbuyer.buyerdata


8 November, 2023

Added support for the device.ext.cdep field, see the Device Object Properties section for details

13 July, 2023

Added support for the field, see the Response Bid Object section for details

22nd May 2023

Changed supported values for the video.plcmt field, see the Video Object section for details

26 April 2023

Added support for the data.ext.segtax bid request field, see the Ext Object for more details.

18th April 2023


BidSwitch is in the process of adding support for the following fields during Q2 2023. The IAB is actively making changes to the Open RTB 2.6 specification and supporting these keeps BidSwitch’s support of Open RTB 2.6 current.

Regulation Object new fields added:

  • regs.gpp

  • regs.gpp_sid

Impression Object new fields added:

  • imp.qty

  • imp.dt

  • imp.refresh

  • imp.qty.multiplier

  • imp.qty.sourcetype

  • imp.qty.vendor

  • imp.refresh.refsettings

  • imp.refresh.count

  • imp.refresh.refsettings.reftype

  • imp.refresh.refsettings.minint

Site Object:

  • site.inventorypartnername moved from site.ext to the root Site object

App Object:

  • app.inventorypartnername moved to the root App object

Device Object Properties:

  • device.ppi field added

DOOH Object moved to the Bid Request 5.7 object root with the following fields:



  • dooh.venuetype

  • dooh.venuetypetax

  • dooh.publisher

  • dooh.domain

  • dooh.keywords

  • dooh.content

Video Object:

  • video.placement is deprecated and replaced with video.plcmt

11th April 2023

Added support for the imp.ext.gpid field, see the Impression Object section for details

15th March 2023

Added support for the imp.ext.skadn.productpage bid request field and: - -

bid response fields, see SkAdNetwork Extension and SkAdNetwork Extension sections for more details

28th September 2022

Added the Google DV360 specific request field ext.purch, see the Ext Object section for more details

19th September 2022

Initial release BidSwitch Protocol 1.1 to support Open RTB 2.6.


Two new fields in this version of the Open RTB protocol require BidSwitch and its partners to align on their understanding of how they should work when used in real trading.

  • The video.mincpmpersec, this sets the minimum CPM per second as the price floor for the “dynamic” portion of a video ad pod, relative to the duration of bids an advertiser may submit. We need to come to a common understanding of how this should be calculated so that bid and bidfloor processing expectations are the same for all partners. See the Video Object section for details.

  • The format object introduces ratios with hration and wratio, see the Format Object section for full details. BidSwitch offers size targeting as part of BidSwitch Targeting Groups but ratios are not accounted for this in this yet. If you intend to use ratios, please speak with you Technical Account Manager so we can align on expected usage of this field.