"We are tentatively going forward with #progpow" – assuming no major issues are found during testing. – @hudsonjameson on the #AllCoreDevs call today.

We are still discussing how long we need to implement and test.

— Lane Rettig (@lrettig) January 4, 2019

Security-lead Martin Holst Swende said that he prefers the switch as it will help ensure the safety of Ethereum’s eventual transition to Proof of Stake.

If tests are successful ProgPoW will become active in the Istanbul update.