Blog

We’re pleased to announce the release of Bitcoin Core 0.17, a major new version containing many new features as well as bug fixes and other improvements.

CVE-2018-17144 Full Disclosure

A full disclosure of the impact of CVE-2018-17144, a fix for which was released on September 18th in Bitcoin Core versions 0.16.3 and 0.17.0RC4.

Bitcoin Core 0.16.3 Released

Bitcoin Core 0.16.3 is now available with a fix for a denial-of-service vulnerability affecting earlier versions of Bitcoin Core.

Bitcoin Core 0.16.2 Released

Bitcoin Core 0.16.2 is now available with new bug fixes and minor updates.

Bitcoin Core 0.16.1 Released

Bitcoin Core 0.16.1 has been released with the latest bug fixes and minor updates

Bitcoin Core 0.16.0 Released

Bitcoin Core 0.16.0 has been released with default wallet support for segwit.

2017

Bitcoin Core 0.15.1 Released

The latest stable version of Bitcoin Core is now available.

Bitcoin Core 0.15.0.1 Released

Bitcoin Core 0.15.0.1 has been released with a fix for a minor bug causing crashes when upgrading to 0.15.0.

Bitcoin Core 0.15.0 Released

The latest stable version of Bitcoin Core is now available.

Correcting misinformation on Segwit2x and btc1

Bitcoin Core 0.14.2 Released

Bitcoin Core 0.14.2 has been released with a security fix for users who manually enable the UPnP option.

Bitcoin Core 0.14.1 Released

The latest stable version of Bitcoin Core is now available.

Technology roadmap - Prioritized block download with using full block SPV mode

Prioritized block download with using full block SPV mode

Technology roadmap - Schnorr signatures and signature aggregation

Status and explanation of Schnorr signatures and signature aggregation

On-chain scaling - a review of historical performance optimization made to Bitcoin’s reference software. Part 1

Development milestones that helped preserve a reliable experience for users of the Bitcoin software client over the years.

Bitcoin Core 0.14.0 Released with Performance Improvements

Multiple significant performance improvements for miners and new full nodes are available in the latest Bitcoin Core release.

Bitcoin Core 0.13.2 Released

We are pleased to announce the general availability of the Bitcoin Core 0.13.2.

2016

Segregated Witness Costs and Risks

A summary of some of the costs and expected risks of deploying segregated witness.

Bitcoin Core 0.13.1 Released with Segregated Witness

The first release of Bitcoin Core that supports activation of segregated witness is now available.

Segregated Witness Upgrade Guide

Almost two years of iterative design, development, and testing has gone into the version of segwit being released in Bitcoin Core 0.13.1, with much of the ef...

Bitcoin Core 0.13.0 Released!

We’re pleased to announce the official release of Bitcoin Core 0.13.0.

Segregated witness: the next steps

Segregated witness (segwit) is approaching release. This post provides some background information, details about how segwit was tested, information about h...

CSV softfork - Important upgrade instructions for miners

There is an ongoing soft fork of the Bitcoin consensus rules. While everything appears to be proceeding well, this article contains important information and...

Version bits FAQ for miners

The “version bits” BIP9 system is a way to introduce backward compatible rule changes to the Bitcoin consensus rules, known as a soft fork.

Compact Blocks FAQ

Compact block relay, BIP152, is a method of reducing the amount of bandwidth used to propagate new blocks to full nodes.

Bitcoin Core 0.12.1 Released!

We are pleased to announce the release of Bitcoin Core 0.12.1. This maintenance update includes the first soft fork deployment utilising version bits

New Repository Maintainer Appointed

Hereby I’m announcing Marco Falke as the new Testing & QA maintainer for Bitcoin Core.

Keep updated!

In an effort to increase communications, we are now providing opt-in, announcement-only information for users of Bitcoin Core to receive notifications of sec...

The first successful Zero-Knowledge Contingent Payment

Announcement for the first Zero-Knowledge Contingent Payment on the Bitcoin network.

Bitcoin Core 0.12.0 Released!

We’re very excited to announce the official release of Bitcoin Core v0.12.0. A lot of hard work has gone into this release and it may just be the biggest one...

Clarifying Communications

Where to find official information about Bitcoin Core and how you can interact with other Bitcoin Core users and developers.

Segregated Witness Benefits

This page summarises some of the benefits of segregated witness.

Launch of Segregated Witness Testnet

We are extremely pleased and excited to announce the release of the Segregated Witness Testnet

Core Development Visualisation for 2015

The following video shows commit activity in the Bitcoin Core repository during 2015.

Statement from Bitcoin Core -- 2016-01-07

Bitcoin is a “peer-to-peer version of electronic cash that allows online payments to be sent directly from one party to another without going through a finan...