End of 3rd party cookie support planned for 31 October 2023

Google has released a timeline showing when new technologies are expected to be ready to "support key use cases" so that Chrome can phase out 3rd-party cookies.

Here's a simplified version:

• Fight SPAM and fraud on the web
  • Testing of Trust Tokens API has begun.
  • Testing to be completed by the end of 2021
  • Ready for adoption in 1Q2022
• Show relevant content and ads
  • FLoC API testing is now closed
  • Discussions through September 2021
  • Testing October 2021 - June 2022
  • Ready for adoption in 3Q2022
• Measure digital ads
  • Core Attribution API testing has begun
  • Discussions through September 2021
  • Testing October 2021 - June 2022
  • Ready for adoption in 3Q2022
• Strengthen cross-site privacy boundaries
  • First-Party Sets API testing has begun
  • Discussions through October 2021
  • Testing November 2021 - June 2022
  • Ready for adoption in 3Q2022
• Transition Period Stage 1: October 2022 through June 2023
• Transition Period Stage 2: 3Q2023
• Transition complete: 31 October 2023

Per Google:

"The Privacy Sandbox initiative also includes several proposals addressing covert tracking techniques, such as fingerprinting and network-level tracking."

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