Blog - Bitcoin Core
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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.
An Open Letter to the Bitcoin Community
As active contributors to Bitcoin, we share this letter to communicate our plan of action related to technical consensus and Bitcoin scalability. Bitcoin is ma
Capacity increases Roadmap for the Bitcoin system
_The following roadmap was originally posted to the [bitcoin-dev mailing list](https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-December/011865.html
Segregated Witness Video Presentation
This is the extended presentation of Segregated Witness by Pieter Wuille.
Capacity increases for the Bitcoin system
We, the undersigned, support the roadmap in [Capacity increases for the Bitcoin system.][1] We have been working on scalability for several years within the Bi
Bitcoin Capacity Increases FAQ
{% include toc.html %} ## What specific technologies are included in the roadmap, and when can we expect them? {#roadmap-dates} New technology will be deploy
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 financia
Core Development Visualisation for 2015
The following video shows commit activity in the Bitcoin Core repository during 2015.
Launch of Segregated Witness Testnet
We are extremely pleased and excited to announce the release of the Segregated Witness Testnet
Segregated Witness Benefits
This page summarises some of the benefits of segregated witness.
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 ye
The first successful Zero-Knowledge Contingent Payment
Announcement for the first Zero-Knowledge Contingent Payment on the Bitcoin network.
Clarifying Communications
Where to find official information about Bitcoin Core and how you can interact with other Bitcoin Core users and developers.
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 secu
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
Compact Blocks FAQ
Compact block relay, BIP152, is a method of reducing the amount of bandwidth used to propagate new blocks to full nodes.
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.
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 ch
New Repository Maintainer Appointed
Hereby I'm announcing Marco Falke as the new Testing & QA maintainer for Bitcoin Core. Testing and QA has always been essential to this project, and with the g
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 how
Bitcoin Core 0.13.0 Released!
We're pleased to announce the official release of Bitcoin Core 0.13.0.
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 Costs and Risks
A summary of some of the costs and expected risks of deploying segregated witness.
Bitcoin Core 0.13.2 Released
We are pleased to announce the general availability of the Bitcoin Core 0.13.2.
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.
Technology roadmap - Schnorr signatures and signature aggregation
Status and explanation of Schnorr signatures and signature aggregation
Technology roadmap - Prioritized block download with using full block SPV mode
Prioritized block download with using full block SPV mode
Bitcoin Core 0.14.1 Released
The latest stable version of Bitcoin Core is now available.
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.
Correcting misinformation on Segwit2x and btc1
Correcting misinformation on Segwit2x and btc1
Bitcoin Core 0.15.0 Released
The latest stable version of Bitcoin Core is now available.
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 0.16.0 Released
Bitcoin Core 0.16.0 has been released with default wallet support for segwit.
Bitcoin Core 0.16.1 Released
Bitcoin Core 0.16.1 has been released with the latest bug fixes and minor updates
Bitcoin Core 0.16.2 Released
Bitcoin Core 0.16.2 is now available with new bug fixes and minor updates.
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 0.17.0 Released
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.
Bitcoin Core 0.17.1 Released
Bitcoin Core 0.17.1, a maintenance release bringing bug fixes and minor improvements, is now available.
Bitcoin Core 0.18.0 Released
We are pleased to release the next major version of Bitcoin Core, 0.18.0.
Bitcoin Core 0.18.1 Released
Bitcoin Core 0.18.1 is now available with bug fixes and other improvements.
Bitcoin Core 0.19.0 Released
Bitcoin Core 0.19.0 has been released with new features, performance improvements, and several bug fixes.
Bitcoin Core 0.19.1 Released
The Bitcoin Core 0.19.1 maintenance release is now available with bug fixes and minor improvements.
Bitcoin Core 0.20.0 Released
Bitcoin Core 0.20.0 is now available with multiple improvements.
bitcoincore.org hidden service
After frequent requests, this site is now reachable as a Tor hidden service
Bitcoin Core 0.20.1 Released
A new maintenance release of Bitcoin Core is now available for download.
Bitcoin Core 0.21.0 Released
Bitcoin Core 0.21.0 is now available with multiple improvements.
Bitcoin Core 0.21.1 Released With Taproot Activation Code
Bitcoin Core 0.21.1 is now available with support for activating and enforcing taproot.
Bitcoin Core 22.0 released
Bitcoin Core 22.0 is now available.
Bitcoin Core 0.21.2 released
Bitcoin Core 0.21.2 is now available.
Bitcoin Core 0.20.2 released
Bitcoin Core 0.20.2 is now available.
Bitcoin Core 23.0 released
Bitcoin Core 23.0 is now available.
Bitcoin Core 22.1 released
Bitcoin Core 22.1 is now available.
Bitcoin Core 23.1 released
Bitcoin Core 23.1 is now available.
Bitcoin Core 23.2 released
Bitcoin Core 23.2 is now available.
Bitcoin Core 24.0.1 released
Bitcoin Core 24.0.1 is now available.
Bitcoin Core 24.1 released
Bitcoin Core 24.1 is now available.
Bitcoin Core 25.0 released
Bitcoin Core 25.0 is now available.
Bitcoin Core 25.1 released
Bitcoin Core 25.1 is now available.
Bitcoin Core 24.2 released
Bitcoin Core 24.2 is now available.
Bitcoin Core 26.0 released
Bitcoin Core 26.0 is now available.
Bitcoin Core 26.1 released
Bitcoin Core 26.1 is now available.
Bitcoin Core 25.2 released
Bitcoin Core 25.2 is now available.
Bitcoin Core 27.0 released
Bitcoin Core 27.0 is now available.
Bitcoin Core 27.1 released
Bitcoin Core 27.1 is now available.
Bitcoin Core 26.2 released
Bitcoin Core 26.2 is now available.
Bitcoin Core 28.0 released
Bitcoin Core 28.0 is now available.
Bitcoin Core 27.2 released
Bitcoin Core 27.2 is now available.
Bitcoin Core 28.1 released
Bitcoin Core 28.1 is now available.
Bitcoin Core 29.0 released
Bitcoin Core 29.0 is now available.
Bitcoin Core development and transaction relay policy
We'd like to share our view on the relationship between Bitcoin Core development and transaction relay policy on the network. Bitcoin is a network that is defi
Bitcoin Core 28.2 released
Bitcoin Core 28.2 is now available.