Fork

What is a Fork in crypto?

Fork in cryptocurrency refers to a change or update in a blockchain's protocol that leads to a split from the original chain. Forks happen when developers or the community decide to change rules, improve functionality, or address security issues.

There are two main types of forks: Hard Fork and Soft Fork, each with different impacts on the blockchain and its participants.

Why are Forks important in crypto?

  • Implement protocol upgrades – Add new features or fix vulnerabilities.

  • Resolve disagreements in the community – Forks can reflect diverging visions.

  • Create new cryptocurrencies – Hard forks can result in a new blockchain and token.

  • Adjust economic parameters – Changing block size, reward system, or fees.

  • Fix urgent security issues – Rapid updates to protect the network.

Types of Forks in crypto

Type

Description

Hard Fork

A permanent split creating a new chain that is incompatible with the old one. Both continue independently.

Soft Fork

A backward-compatible update where non-updated nodes still recognize new blocks as valid.

Hard Fork vs. Soft Fork

Aspect

Hard Fork

Soft Fork

Compatibility

Incompatible with previous version

Backward-compatible

Blockchain split

Yes, creates a new chain

No, remains a single chain

Example

Bitcoin Cash from Bitcoin

SegWit update on Bitcoin

Token impact

New token may be created

No new token, existing token continues

Famous examples of Forks in crypto

Event

Type

Year

Reason

Bitcoin Cash (BCH)

Hard Fork

2017

Disagreement over Bitcoin block size limit

Ethereum Classic (ETC)

Hard Fork

2016

DAO hack and refund disagreement

Bitcoin SegWit

Soft Fork

2017

Address malleability and scalability fix

Pros and Cons of Forks

Pros

Cons

Enable protocol improvements

Can cause community splits

Fix bugs and security issues

Confuse users and investors

Allow experimentation with new ideas

May lead to competing chains and tokens

Empower community governance

Dilutes value and focus on the original chain

How do Forks affect token holders?

  • Hard Fork – Token holders may receive coins on both chains (e.g., BTC and BCH).

  • Soft Fork – Token holders usually experience no changes; network continues smoothly.

  • Market impact – Forks can cause price volatility and speculation.

  • Wallet and exchange updates – May require software updates to support new chain.

Fork and network governance

Forks are often the result of governance decisions, reflecting differences in opinion over blockchain direction. They can be democratic tools for decentralization but also highlight the challenges of consensus in open communities.

Conclusion

Forks are essential for the evolution and governance of blockchain networks, allowing communities to implement updates, resolve disputes, and explore new paths. Whether as hard forks that create new cryptocurrencies or soft forks that enhance existing ones, forks shape the future of crypto projects and impact their users, developers, and investors.