Bitcoin ABC

Bitcoin ABC is proud to announce we’re kicking off our 2020 Business Plan Fundraising Drive this month. We are raising funds to sustain our operations for 1 year at a... [Read More]

George Donnelly Joins Bitcoin ABC as Business Development Manager

Will work on funding Bitcoin Cash protocol development

Posted on March 3, 2020

Update: As of August 2020, George Donnelly is no longer with Bitcoin ABC. [Read More]

Prepare for the Bitcoin Cash upgrade with Bitcoin ABC 0.21.0

May 15th 2020 protocol upgrade is locked in

Posted on February 18, 2020

Every six months, Bitcoin Cash takes one step closer to realizing its roadmap of global peer-to-peer electronic cash. With this coming network upgrade, Bitcoin ABC has prepared its 0.21.0 release.... [Read More]

On the Miner Infrastructure Funding Plan

Posted on February 15, 2020

Recently Jiang Zhuoer of BTC.TOP announced the intention to create an Infrastructure Funding Plan (IFP) for Bitcoin Cash. This plan set off much discussion and debate within the Bitcoin Cash... [Read More]

Make sure you are ready for the Bitcoin Cash network upgrade

Upgrade activates Nov. 15th

Posted on October 30, 2019

What is happening? [Read More]

Prepare for the Bitcoin Cash protocol upgrade with Bitcoin ABC 0.20.0

November 15th 2019 protocol upgrade is now locked in

Posted on August 21, 2019

The goal of Bitcoin ABC is to help create sound money that is usable globally in order to drive freedom and prosperity for everyone. Bitcoin ABC continues to be a... [Read More]

Kraken Switches to CashAddr

Posted on August 8, 2019

In a win for usability within the Bitcoin Cash ecosystem, Kraken exchange today announced to customers that it will switch to CashAddr for all deposits starting Aug. 15th 2019. [Read More]

Bitcoin ABC Incident Report (15MAY2019)

Posted on May 28, 2019

This document contains information regarding our response to a critical vulnerability affecting mining in Bitcoin ABC 0.18.x (all versions) and 0.19.0 through 0.19.5. Appropriate action has been taken to mitigate... [Read More]

Prepare for the Bitcoin Cash protocol upgrade with Bitcoin ABC 0.19.0

May 15th 2019 protocol upgrade is now locked in

Posted on February 20, 2019

The goal of Bitcoin ABC is to help create sound money that is usable globally in order to drive freedom and prosperity for everyone. This vision has not changed. [Read More]

Bitcoin ABC 0.18.5 Released

Now with deep reorg protection!

Posted on November 20, 2018

We are pleased to announce that Bitcoin ABC 0.18.5 has been released. You can download it at: https://download.bitcoinabc.org/0.18.5/. [Read More]

Responsible Disclosure Policy

How to report security vulnerabilities

Posted on November 8, 2018

Bitcoin ABC takes security very seriously. We greatly appreciate any and all disclosures of bugs and vulnerabilities that are done in a responsible manner. We will engage responsible disclosures according... [Read More]

Bitcoin ABC Incident Report (17SEPT2018)

Posted on September 26, 2018

This document contains information regarding our response to a critical vulnerability affecting all versions of Bitcoin ABC, Bitcoin Core versions 0.14.3 to 0.16.2, and various versions of Bitcoin Core-derived code... [Read More]

Bitcoin ABC and the Block Size Limit

Enabling larger blocks by doing the necessary technical work

Posted on September 7, 2018

The purpose of this document is to describe the technical improvements being worked on to increase the maximum block size for Bitcoin Cash. It is part of a series of... [Read More]

Sharding Bitcoin Cash

Article by Shammah Chancellor, Bitcoin ABC Developer

Posted on September 6, 2018

Moore’s law is often applied to Bitcoin as an argument for how Bitcoin can be scaled along with increased future usage. Indeed Moore’s law as it pertains to number of... [Read More]

The Bitcoin ABC Vision

Proposed Technical Roadmap for Bitcoin Cash

Posted on August 24, 2018

The goal of Bitcoin ABC is to help create sound money that is usable by everyone in the world. We believe this is a civilization-changing technology which will dramatically increase... [Read More]

Announcing Bitcoin ABC 0.18.0

Be sure to upgrade before November

Posted on August 20, 2018

We are pleased to announce that Bitcoin ABC 0.18.0 has been released. You can download it at: https://download.bitcoinabc.org/0.18.0/. [Read More]

Benefits of Canonical Transaction Order

Posted on August 15, 2018

Jonathan Toomim wrote a wonderful article explaining several considerations involved in the decision behind Canonical Transaction Ordering (CTOR) [1]. Below is a quick summary of the points he made and... [Read More]

November hardfork changes to be completed by August 15th

Only one week left before the code-complete date

Posted on August 8, 2018

Keeping inline with our proposed November Upgrade Timeline, Bitcoin ABC has been striving to have consensus-related changes be in a code-complete state by August 15th. This is both a reminder... [Read More]

November Upgrade Timeline

Planning ahead for the upcoming network upgrade

Posted on July 5, 2018

As the November 15th hardfork upgrade approaches and proposals continue to be discussed, the Bitcoin ABC team would like to set a timeline to ensure a smooth upgrade in November.... [Read More]

Bitcoin-ABC incident report (26APR2018)

Posted on May 7, 2018

This document contains information regarding the response to a critical vulnerability applicable to miners of Bitcoin Cash using Bitcoin-ABC 0.17.0. Appropriate action has been taken to mitigate the impact of... [Read More]

May 15th Network Upgrade

Bitcoin Cash is adding opcodes and 32mb blocks

Posted on April 1, 2018

What is Happening May 15th? [Read More]

CashAddr Addresses Are Here

Version 0.16.2 Supports the new CashAddr Bitcoin Cash Address Format.

Posted on January 14, 2018

Bitcoin ABC Releases Software Version 0.16.2 Featuring the new CashAddr Address Format [Read More]

Medium Term Development Plan

Posted on December 1, 2017

Bitcoin ABC - Medium Term Development Plan [Read More]

Difficulty Adjustment Algorithm Update

Bitcoin ABC has published version 0.16.0 which contains an updated Difficulty Adjustment Algorithm (DAA).

Posted on November 1, 2017

Bitcoin ABC has published version 0.16.0 which contains an updated Difficulty Adjustment Algorithm (DAA). [Read More]