DocumentationVisitor ID Service Guide

2020 Release Notes release-notes

Last update: May 22, 2026

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Feature releases, updates, or changes to the Visitor ID Service.

Version 5.1.1

  • Patch fix for setting AMCV cookie with SameSite=None when VisitorJS is loaded in an iFrame.

Version 5.1.0

  • Adding sameSiteCookie config to specify the SameSite attribute for AMCV cookie. This config supports the following values for the SameSite attribute:

    • Strict
    • Lax
    • None

For more information on these attribute values, visit web.dev and SameSite Updates by The Chromium Projects.

Version 5.0.1

  • Patch fix for including d_cf flag when a new IAB consent string is sent to Adobe Data Collection edges.

Version 5.0.0

  • Visitor 5.0.0 release with support for IAB 2.0.

Version 4.6

  • Made loadSSL flag on by default. All calls to Visitor ID Service will be on https by default. Customers can set it to false if they want to call the Visitor ID Service on http from their non-ssl pages.
  • Updated the function used to detect Internet-Explorer (IE) version, to fix an issue reported by ESLint.
    Fix for performance issue on Internet-Explorer (IE) 11 when ECID is given optIn pre-approval and updated later.

Version 4.5

  • Beginning with version 4.5, ECID will reject any empty IDs sent to setCustomerIDs method.
  • Fixed an issue occurring when opt-in is configured as doesOptInApply=false and isIabContext=true.

See CX Enterprise release notes for monthly release notes for all products.

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