According to a tweet posted by Barcelona-based Ethereum 2.0 core developer "Dapplion," the second merge test is expected to take place on Saturday.
The first rehearsal of the merge took place earlier this April. Developers implemented a so-called "shadow fork" in order to experiment with their ideas before the real shift to proof-of-stake takes place.
The next step will provide more clarity regarding the timeline of the much-anticipated transition.
It was expected that the major technical upgrade would take place in June. However, Ethereum developer Tim Beiko announced that the merge would take "a few months after." At this point, it seems like the second-largest blockchain will be able to finally move to the proof-of-stake consensus mechanism this fall, but there is no specific date for now. With that being said, Beiko did confirm that Ethereum was in its "final chapter" of proof-of-work.
Ethereum is expected to dramatically reduce its carbon footprint after switching to proof-of-stake. As reported by U.Today, its power consumption is expected to drop by 99.95%. The upgrade could be crucial for Ethereum as cryptocurrencies with positive environmental, social and governance (ESG) characteristics are poised to gain more prominence.
Apart from drastically lowering energy usage, ditching mining will also allow Ethereum to reduce gas fees.