The Merge is a milestone upgrade that transitions the Ethereum network consensus mechanism from proof-of-work mining to proof-of-stake (PoS). It is a significant step as it will reduce Ethereum’s energy consumption by more than 99%, which should keep the critics, policymakers, and environmentalists at bay.
The difficulty bomb is a mechanism that increases the difficulty level or complexity of “puzzles” in the proof-of-work mining algorithm. As the calculations become harder, it results in longer than standard block times and lower rewards for miners.
Ethereum core Dev @preston_vanloon just said the eth merge is ready,they are now only testing, and expects the merge to happen in August. Packed room @Permissionless are excited about it. Great question @TrustlessState. Also on panel @drakefjustin pic.twitter.com/vX4beNatJ5
— Benjamin Cohen (benjicohen.eth) (@benjicohen421) May 19, 2022
Final Phase of Merge Testing
Ethereum client developers announced the final phase of testing this week, whereby the Merge will be deployed on the Ropsten testnet. Ropsten is the closest development network to the real thing, so it will be able to rigorously battle-test the Merge and PoS. According to Ethereum client developers, Ropsten testing will commence on June 8.
Ropsten-beacon-chain config has been merged!
Expect client releases 🔜Genesis: May 30, 3:00:00 PM (GMT)
Merge transition: ~ June 8 pic.twitter.com/D23oH0K5sH— terence.eth (@terencechain) May 18, 2022
The Merge will not lower gas fees, however, as this will only occur when scaling upgrades such as sharding are implemented. Earlier this month, average transaction fees surged to around $200 as an over-hyped nonfunglible token (NFT) collection was launched on the network. The high cost of using Ethereum when under heavy load has been the bane of many users, and there will be little relief on that side of things from the Merge.
Scaling upgrades such as EIP-4844 are also being developed. This one takes the side chain concept a step further and introduces a new type of transaction called “Proto-Danksharding” that will process “blobs” of data to improve blockchain throughput.
Aside from the environmental benefits, another upside of the Merge is a reduction in ETH issuance. There will be no more Ethereum mining, and the transaction fee burning mechanism introduced with EIP-1559 should result in deflationary issuance for the asset.