The Bellatrix update will be the last before the Ethereum merger.
When the difficulty reaches a certain value in the PoW network, it will switch to PoS.
On September 6, 2022 at 11:34 AM (UTC), the Bellatrix Update will be published on the Ethereum Beacon Chain. This is the last stage before merging (or merging), which is the process the network goes through to finally pass it to a Proof of Stake (PoS).
After years of hard work, the Ethereum Proof of Stake update is finally here! As stated in the Ethereum Foundation blog. There it was added: “The successful upgrade of all public test networks has now been completed and the integration is scheduled for the Ethereum mainnet.”
As reported by CriptoNoticias, the merger was known to happen soon and the tentative date was set for September 15th, but that update was missing to make it official. There is no going back because the merge is now programmed in code Ethereum.
Bellatrix is an update of the consensus layer (the network that uses Proof of Stake, also called the Beacon Chain). This update prepares the new network to receive accounting for the network that is currently in use (Execution Layer, or Ethereum 1.0).
Together with Bellatrix, the difficulty bomb is activated on the network with Proof of Work and mining will become more complex. When the Ethereum mining difficulty is about 5 million times higher than the current level and reaches the figure of 58750000000000000000000 (final total difficulty), the merge activation will begin in the updated Ethereum nodes (this transition is called “Paris” and produced on the network with Proof of Work”). It will happen sometime between the 10th and 20th of September.
According to wenmerge.com, the merger will happen on September 13, although it is noted that it is an estimated date.
Merging will occur from one block to another. The Ethereum Foundation explains: “Once the execution layer reaches or exceeds full final difficulty, the subsequent block will be produced by the Beacon Chain Checker” and not by the Proof of Work miner. The merge will be considered complete once this block is finished.
Those running an Ethereum contract must have an updated software. Node operators must run the consensus and execution layer client to stay on the network during and after the merge.
This broker announced yesterday that GETH, the most used client, ready to integrate. But there are also other software being updated and the download links are on the Ethereum Foundation blog.
Finally, for those with programming knowledge, it is stated that from today until September 8th, las Rewards for finding weaknesses multiply by 4. Now, anyone who finds a fatal error in the Ethereum code can win a reward of up to $1 million.