In this article, you will learn what is Ethereum fork. A fork in a cryptocurrency happens when a majority of the users of a blockchain cannot come to an agreement on an update. Various cryptocurrency networks, including Bitcoin and Ethereum, have experienced hard forks as a result of a lack of consensus for contentious software updates.
What is Ethereum Fork?
Forks are when major technical upgrades or changes need to be made to the network – they typically stem from Ethereum Improvement Proposals (EIPs) and change the "rules" of the protocol.
When upgrades are needed in traditional, centrally-controlled software, the company will just publish a new version for the end-user. Blockchains work differently because there is no central ownership. Ethereum clients must update their software to implement the new fork rules. Plus block creators (miners in a proof-of-work world, validators in a proof-of-stake world) and nodes must create blocks and validate against the new rules.
These rule changes may create a temporary split in the network. New blocks could be produced according to the new rules or the old ones. Forks are usually agreed upon ahead of time so that clients adopt the changes in unison and the fork with the upgrades becomes the main chain. However, in rare cases, disagreements over forks can cause the network to permanently split – most notably the creation of Ethereum Classic with the DAO fork.
What is Soft Fork?
The other type of fork stemming from intention forks is soft forks. Hard and soft forks are similar in that when a blockchain rule is changed, the old version remains in the network while the new one is also present – both creating a split.
With soft forks, a change is made to the software protocol that doesn't clash with the code and old nodes might accept data that appears invalid to the new nodes without the user noticing. On the other hand, nodes in hard forks will stop processing The blocks following the addition of new rules whereas soft forks allow upgraded nodes to still communicate with the non-upgraded nodes.
What Causes Ethereum Hard Fork?
In July 2016. the Ethereum network hard forked into two blockchains: Ethereum and Ethereum Classic. Ethereum Classic is now a completely separate cryptocurrency with different technological and philosophical goals.
At that time, attackers exploited flaws in the smart contract code of a prominent application running on Ethereum called The DAO. In response, the Ethereum community implemented a hard fork to roll back all DAO-related transactions and allow the DAO's original contributors to reclaim the DAO. funds.
While many in the community supported the Ethereum hard fork, some chose to continue running the original Ethereum blockchain. That blockchain eventually became known as Ethereum Classic.
After the hard fork, Ethereum Classic has not received any updates directly from the Ethereum chain. Ethereum Classic and Ethereum are maintained as separate projects with different development teams contributing to each one.
Forks and Updates to the Ethereum blockchain
There is a timeline of major milestones, forks, and updates to the Ethereum blockchain starting from the Frontier thawing in 2015 to the Paris (the Merge) in 2022.
In 2022. there are Paris, Bellatrix and Gray Glacier forks. Arrow Glacier, Altair, London and Berlin are in 2021 and Beacon Chain genesis, Staking deposit contract deployed, Muir Glacier, Istanbul, Constantinople, Byzantium, Spurious Dragon, Tangerine whistle, Home , Frontier thawing and Frontier happened during 2020 and 2015 after 2014 launch.
Bottom Line
Ethereum has updated many forks to make major upgrades and changes to the blockchain and they are called forks. If you are interested in what is Ethereum fork, you can learn in this article.
