13 Apr, 2023

Blockchain Forks: Understanding Soft and Hard Forks

soft and hard forks


Blockchain forks, either soft or hard, are essential for network updates and security. Soft forks are backward-compatible, less disruptive, and used for adding features or fixing bugs. While hard forks are more disruptive, not backward-compatible, and used for significant changes.

Users should stay informed, update software, monitor community consensus, and backup private keys. This is in addition to diversifying investments to navigate blockchain network changes and ensure the security of their cryptocurrency holdings.


Blockchain technology is like a delicious cake – forks are the utensils that help us cut and serve it. In the world of blockchain, forks are a common occurrence. Just like a fork can split a piece of cake into two – a fork splits the network into two separate versions. 

However, not all forks are created equal! Some forks are suitable for cutting soft cakes, and others are good for cutting hard cakes. There are two types of forks in the blockchain world: soft and hard. 

Each type of fork has its characteristics, advantages, and disadvantages, and understanding the difference between them is crucial for anyone who wants to dive into the world of blockchain technology. 

This article will explain the critical differences between soft and hard forks and their implications for blockchain networks and their users.

Differences between Soft and Hard Forks

A soft fork is an update to a blockchain network designed to be backward-compatible. This means that even though a newer network version is being updated, older software versions can still participate in the network and validate transactions.

Soft forks are less disruptive and are typically used to add new features or fix bugs. An example of a soft fork is the SegWit update to the Bitcoin blockchain, which improved transaction efficiency and scalability.

On the other hand, a hard fork is a type of update that is not backward-compatible with the older versions. Older software versions can no longer participate in the network and validate transactions.

Hard forks are more disruptive and are typically used to make significant changes to the blockchain. Changes such as increasing the block size limit or changing the consensus algorithm. An example of a hard fork is the creation of Bitcoin Cash. This fork is from the formation of the Bitcoin blockchain. It increased the block size limit from 1MB to 8 MB.

It is important to note that hard forks can lead to a split in the community. By doing so, it creates two separate versions of the blockchain. This can lead to a loss of value for some holders of the original version blocks the cryptocurrency.

Examples of hard and soft forks

The introduction of SegWit and the birth of the Bitcoin Cash fork are among the most notable examples of soft and hard forks, respectively.

Bitcoin cash hard fork

An example of a hard fork is the split of Bitcoin into Bitcoin and Bitcoin Cash in 2017. The Bitcoin Cash community proposed a block size increase, and the hard fork resulted in the creation of a whole new block and cryptocurrency, Bitcoin Cash, which has a larger block size limit than Bitcoin.

Segwit soft fork

An example of a soft fork is the Segregated Witness (SegWit) upgrade for Bitcoin in 2017. The upgrade aimed to increase the block size limit and improve scalability by removing signature data from transactions. This change was implemented as a soft fork and required only some nodes to upgrade to the latest software version.

Ethereum Classic hard fork

Ethereum Classic (ETC): In 2016, the Ethereum community experienced a hard fork due to the DAO hack, where a large amount of Ether was stolen. The district decided to hard-fork the old blockchain version to return the stolen funds to their original owners. However, a small group of individuals opposed the fork and continued using the original blockchain, now known as Ethereum Classic.

Bitcoin gold hard fork

Bitcoin Gold (BTG): In 2017, another hard fork of Bitcoin occurred, creating Bitcoin Gold. The goal of Bitcoin Gold was to make the mining process more decentralized by changing the algorithm used to mine new blocks on old blockchains from SHA-256 to Equihash.

Bitcoin SV hard fork

Bitcoin SV (BSV): In 2018, Bitcoin Cash went through another hard fork, resulting in the creation of a new version, Bitcoin SV (BSV). The fork resulted from a disagreement between Bitcoin Cash developers over the future of the cryptocurrency. Bitcoin SV increased the block size limit to 128 MB and introduced a new set of rules to the network.

These are just a few examples of the cryptocurrency world’s hard and soft forks. Hard forks can happen for various reasons, such as disagreements within a community, security concerns, or the desire to change the underlying technology of a blockchain.

Navigating Blockchain Network Changes: Preparing for Forks

As blockchain networks change, users must adapt to updates to protect their cryptocurrency holdings. Here are vital steps to prepare for and navigate soft and hard forks in the blockchain ecosystem:

  1. Stay informed: Monitor news and updates from crypto project teams and trusted sources to make well-informed decisions about investments and network participation.
  2. Update software: When a fork is announced, update your wallet and node software to the latest version, particularly for hard forks, to stay compatible and avoid potential issues.
  3. Monitor community consensus: Observe community discussions and debates for insights into a fork’s potential success and to make better-informed decisions.
  4. Backup, private keys: Secure private keys or seed phrases before significant network changes to maintain access to funds regardless of the fork’s outcome.
  5. Diversify investments: Mitigate risks associated with forks by diversifying your cryptocurrency holdings and reducing the impact of a single fork on your portfolio.

By following these steps, users can navigate blockchain forks and be prepared for any changes, ensuring success in managing the impact of soft and hard forks on their network participation and holdings.


In conclusion, hard forks and soft forks are essential to keep blockchain networks secure and up to date. Hard forks provide increased security, while soft forks require less computing cost and allow for easier upgrades to implement new functionalities that are also backward compatible. Users should always stay informed and updated about the latest forks to understand the advantages and disadvantages of each type.