Hard Fork and Soft Fork in Crypto: Guide

Blockchain networks, however, do not remain constant. With the course of time, they experience different updates, changes in rules, or technological improvements. All these modifications are often implemented using an approach that is called a fork in crypto.

A fork in blockchain is a change in the set of rules which defines the functioning principles of a blockchain network. Certain forks are only small updates for the sake of compatibility. Other forks create independent networks with their own cryptocurrencies. It is here when the difference between a hard and soft fork comes in handy.

Knowing what is a hard fork in cryptocurrency and what is a soft fork, one should understand that a fork affects network, miners, developers, exchanges, and token holders alike.

There have been many notable events in the crypto world history, among which are the birth of Bitcoin Cash and Ethereum Classic due to hard forks.

What Is a Blockchain Fork?

Blockchain forks occur when changes happen in the rules of operation of the network. Blockchains run using consensus rules that must be followed by all participants within the network. They include miners, validators, nodes, and users of the network.

Where rules are changed, the blockchain may either temporarily or permanently fork into two separate chains. The concept behind fork blockchain refers to how a chain splits into various chains running along different paths, one chain operates according to the old rule while another uses new rules.

For example, a fork may be caused by:

• Network updates

• Improvements in security

• Scalability issues

• Community disputes

• Fixing bugs or updating the protocol

All forks do not result in a creation of a new coin. Sometimes an upgrade is meant to be backward-compatible with earlier network versions. Other times, it causes an absolute non-backward-compatibility of the code.

This difference between a soft fork and hard fork meaning is fundamental.

The reason why forks occur is that the process of developing blockchain technology is a natural evolution. This is unlike centralization in conventional systems, where there is always one decision-maker for updates.

What Is a Soft Fork?

A soft fork refers to an update to a blockchain that is backward-compatible with past versions of the blockchain. In other words, nodes that have been operating on old software will still be able to identify and communicate with blocks produced by the updated version.

Backward compatibility is the essence of what makes a soft fork in cryptocurrency.

Generally speaking, a soft fork blockchain does not necessarily alter the fundamental structure of a blockchain but may place certain limits or enhancements. The reason for this is because older nodes are still able to function within the network.

Some common motivations behind soft forks are:

• increase the efficiency of the blockchain network

• incorporate security features

• modify transaction validation rules

• implement new features without causing a chain split

Perhaps one of the most famous cases is SegWit in the Bitcoin network, where transaction data was altered to enhance scalability and prevent issues related to transaction malleability. Soft forks do not necessarily result in the creation of a new cryptocurrency since the blockchain network remains one continuous chain.

Nevertheless, a soft fork would require wide acceptance across the network, such that failure to adhere to the changes could result in an ineffective upgrade process.

What Is a Hard Fork?

The hard fork can be explained as an update to the blockchain that results in changes that cannot be implemented in accordance with the rules that were previously set by the network.

That is precisely the essence of the hard fork meaning in cryptocurrencies: there is a divergence in the blockchain due to different rules being used by various members of the network.

In the case of a hard fork, the blockchain may be divided into two chains:

• One based on the old rules

• And another one according to the updated rules of the protocol.

And that's why it is vital for one to know what a hard fork in cryptocurrency is - a hard fork has the potential to drastically alter the structure of the entire blockchain project.

A hard fork may either be caused by a technological change or an internal disagreement within the community. Controversies over scalability, governance, transaction fees, and other such factors could trigger a split.

Examples of cryptocurrencies that have resulted from a hard fork include:

• Bitcoin Cash, which forked from Bitcoin

• Ethereum Classic, which forked from Ethereum

Hard forks are often seen as more destructive than soft forks.

Hard Fork vs Soft Fork

What distinguishes a hard fork meaning from a soft fork is their level of compatibility.

While a soft fork makes changes to the rules of the blockchain without compromising its backward compatibility, nodes that have not implemented an upgrade will be able to recognize blocks produced with the update but not fully understand how they were created.

This is not the case for a hard fork, where once the new rules are put into effect, the previous software versions will fail to validate them. In other words, hard forks result in a permanent split in the chain and its ecosystem, unless all parties upgrade at the same time.

Specifically:

• Soft forks try to keep the blockchain in one piece

• Hard forks create multiple blockchains

It is also necessary to point out the level of disruption caused by a fork type. While a soft fork is a relatively smooth procedure, hard forks are complicated. However, the effects for cryptocurrency holders also vary.

In a soft fork, there is generally no change for the user as they keep holding the same cryptocurrency. In the case of a hard fork, holders can sometimes get coins from both blockchains since the blockchain has become split into two different cryptocurrencies.

In terms of governance, hard forks tend to be more contentious than soft forks within the blockchain ecosystem.

Why Forks Matter in Crypto

In contrast to conventional software created and governed by one corporation, blockchain technology is based on a decentralized approach. This means that any substantial improvement in the system necessitates collaboration between developers, miners, validators, exchanges, and regular users.

This is why forks tend to become events in the crypto world.

A fork can impact the following:

• Network security

• Efficiency of transactions

• Scalability

• Trends in governance

• Community building

Sometimes a fork just improves the network internally. In other situations, a fork might create competing projects within the ecosystem.

Hard forks become particularly relevant because hard forks may result in a complete change in the identity of a particular blockchain.

Forks may have an impact on investors and speculators. Major fork upgrades may lead to high levels of volatility and may influence the overall mood of the market. This might lead to temporary outages of exchanges or wallets adapting to new network conditions.

At the same time, forks become the primary reason for the high adaptability of blockchain networks.