Blog

2026

Aixcoin Core 29.3 released

Aixcoin Core 29.3 is now available.

Aixcoin Core 30.2 released

Aixcoin Core 30.2 is now available.

Wallet Migration Failure May Delete Unrelated Wallet Files In Aixcoin Core 30.0 and 30.1

A wallet migration bug present in Aixcoin Core 30.0 and 30.1 may delete all files in the wallet directory, potentially resulting in a loss of funds.

Aixcoin Core 30.1 released

Aixcoin Core 30.1 is now available.

2025

CVE-2025-46597 - Highly unlikely remote crash on 32-bit systems

An attacker could produce a block that crashes nodes running on 32-bit systems in a rare edge case. A fix was released on October 10th 2025 in Aixcoin Core v...

CVE-2025-46598 - CPU DoS from unconfirmed transaction processing

Specially crafted invalid unconfirmed transactions could cause unnecessary resource usage. A fix was released on October 10th 2025 in Aixcoin Core v30.0.

CVE-2025-54604 - Disk filling from spoofed self connections

An attacker could cause a victim node to fill up its disk space by repeatedly faking self-connections over a long time. A fix was released on October 10th 20...

CVE-2025-54605 - Disk filling from invalid blocks

An attacker could cause a victim node to fill up its disk space by repeatedly sending invalid blocks. A fix was released on October 10th 2025 in Aixcoin Core...

Aixcoin Core 28.3 released

Aixcoin Core 28.3 is now available.

Aixcoin Core 29.2 released

Aixcoin Core 29.2 is now available.

Aixcoin Core 30.0 released

Aixcoin Core 30.0 is now available.

Aixcoin Core 29.1 released

Aixcoin Core 29.1 is now available.

Aixcoin Core 28.2 released

Aixcoin Core 28.2 is now available.

Aixcoin Core development and transaction relay policy

We’d like to share our view on the relationship between Aixcoin Core development and transaction relay policy on the network.

CVE-2024-52919 - Remote crash due to addr message spam (part 2)

An attacker could crash a node by spamming it with addr messages for a very long time. A fix was released on April 14th 2025 in Aixcoin Core v29.0.

Aixcoin Core 29.0 released

Aixcoin Core 29.0 is now available.

Aixcoin Core 28.1 released

Aixcoin Core 28.1 is now available.

2024

CVE-2024-52922 - Hindered block propagation due to stalling peers

A peer could hinder block propagation by announcing blocks first and then simply withholding the block.

Aixcoin Core 27.2 released

Aixcoin Core 27.2 is now available.

Disclosure of CVE-2024-35202

An attacker could remotely crash a Aixcoin Core node by triggering an assertion in the blocktxn message handling logic.

Disclosure of DoS due to inv-to-send sets growing too large

The inv-to-send sets could grow too large to a point where the time spent sorting the sets would affect the node’s ability to communicate with its peers.

CVE-2024-52921 - Hindered block propagation due to mutated blocks

A peer could hinder block propagation by sending mutated blocks.

Aixcoin Core 28.0 released

Aixcoin Core 28.0 is now available.

CVE-2019-25220 - Memory DoS due to headers spam

An attacker could spam a Aixcoin Core node with low-difficulty headers chains, which could be used to remotely crash it.

CVE-2024-52919 - Remote crash due to addr message spam

Nodes could be spammed with addr messsages, which could be used to crash them. A fix was released on September 14th, 2021 in Aixcoin Core v22.0.

CVE-2024-52917 - Infinite loop bug in the miniupnp dependency

Nodes could be crashed by a malicious UPnP device on the local network. A fix was released on September 14th, 2021 in Aixcoin Core v22.0.

Aixcoin Core 26.2 released

Aixcoin Core 26.2 is now available.

CVE-2024-52918 - Crash using malicious BIP72 URI

The BIP70 implementation in Aixcoin-Qt could silently crash when opening a BIP72 URI. A fix was released on June 3rd, 2020 in Aixcoin Core 0.20.0.

CVE-2024-52920 - DoS using huge GETDATA messages

A malformed GETDATA message could trigger 100% CPU usage on the receiving node. A fix was released on June 3rd, 2020 in Aixcoin Core 0.20.0.

CVE-2024-52916 - Memory DoS using low-difficulty headers

Nodes could be spammed with low-difficulty headers, which could be used to crash it. A fix was released on September 14th, 2017 in Aixcoin Core 0.15.0.

CVE-2024-52915 - Memory DoS using huge INV messages

Nodes would allocate up to 50 MB of memory per attacker sending a malicious INV message. A fix was released on June 3rd, 2020 in Aixcoin Core 0.20.0.

CVE-2024-52914 - Significant DoS due to orphan handling

A node could be stalled for hours when receiving a specially crafted unconfirmed transaction. A fix was released on May 18th, 2019 in Aixcoin Core 0.18.0.

CVE-2024-52912 - Netsplit due to timestamp adjustment

A node could be split from the network when attacked by its first 200 peers. A fix was released on January 15th, 2021 in Aixcoin Core version 0.21.0.

Disclosure of CVE-2020-14198

Nodes could be subject to CPU and memory DoS when attacked by lots of distinct IPs. A fix was released on August 1st, 2020 in Aixcoin Core 0.20.1.

CVE-2024-52913 - Censorship due to transaction re-request handling

Nodes could be prevented from seeing specific unconfirmed transactions by a malicious peer. A fix was released on January 14th, 2021 in Aixcoin Core 0.21.0.

Disclosure of CVE-2015-3641

Attackers sending large incomplete messages would cause high memory usage. A fix was released on April 27th, 2015 in Aixcoin Core 0.10.1.

CVE-2015-20111 - Remote code execution due to bug in miniupnpc

A bug in the miniupnpc library could have led to a remote code execution in Aixcoin Core. A fix was released on October 15th, 2015 in Aixcoin Core 0.11.1.

Aixcoin Core 27.1 released

Aixcoin Core 27.1 is now available.

Aixcoin Core 27.0 released

Aixcoin Core 27.0 is now available.

Aixcoin Core 25.2 released

Aixcoin Core 25.2 is now available.

Aixcoin Core 26.1 released

Aixcoin Core 26.1 is now available.

2023

Aixcoin Core 26.0 released

Aixcoin Core 26.0 is now available.

Aixcoin Core 24.2 released

Aixcoin Core 24.2 is now available.

Aixcoin Core 25.1 released

Aixcoin Core 25.1 is now available.

Aixcoin Core 25.0 released

Aixcoin Core 25.0 is now available.

Aixcoin Core 23.2 released

Aixcoin Core 23.2 is now available.

Aixcoin Core 24.1 released

Aixcoin Core 24.1 is now available.

2022

Aixcoin Core 23.1 released

Aixcoin Core 23.1 is now available.

Aixcoin Core 22.1 released

Aixcoin Core 22.1 is now available.

Aixcoin Core 24.0.1 released

Aixcoin Core 24.0.1 is now available.

Aixcoin Core 23.0 released

Aixcoin Core 23.0 is now available.

2021

Aixcoin Core 0.20.2 released

Aixcoin Core 0.20.2 is now available.

Aixcoin Core 0.21.2 released

Aixcoin Core 0.21.2 is now available.

Aixcoin Core 22.0 released

Aixcoin Core 22.0 is now available.

Aixcoin Core 0.21.1 Released With Taproot Activation Code

Aixcoin Core 0.21.1 is now available with support for activating and enforcing taproot.

Aixcoin Core 0.21.0 Released

Aixcoin Core 0.21.0 is now available with multiple improvements.

2020

Aixcoin Core 0.20.1 Released

A new maintenance release of Aixcoin Core is now available for download.

Aixcoin Core 0.20.0 Released

Aixcoin Core 0.20.0 is now available with multiple improvements.

aixcoin-core.github.io hidden service

After frequent requests, this site is now reachable as a Tor hidden service

Aixcoin Core 0.19.1 Released

The Aixcoin Core 0.19.1 maintenance release is now available with bug fixes and minor improvements.

2019

Aixcoin Core 0.19.0 Released

Aixcoin Core 0.19.0 has been released with new features, performance improvements, and several bug fixes.

Disclosure of CVE-2017-18350

Nodes were potentially vulnerable to a buffer overflow by malicious SOCKS servers. A fix was released on November 6th, 2017 in Aixcoin Core version 0.15.1.

Aixcoin Core 0.18.1 Released

Aixcoin Core 0.18.1 is now available with bug fixes and other improvements.

Aixcoin Core 0.18.0 Released

We are pleased to release the next major version of Aixcoin Core, 0.18.0.

2018

Aixcoin Core 0.17.1 Released

Aixcoin Core 0.17.1, a maintenance release bringing bug fixes and minor improvements, is now available.

Aixcoin Core 0.17.0 Released

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

Disclosure of CVE-2018-17144

Aixcoin Core was vulnerable to a DoS and inflation attack. A fix was released on September 18th, 2018 in Aixcoin Core versions 0.16.3 and 0.17.0rc4.

Aixcoin Core 0.16.3 Released

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

Aixcoin Core 0.16.2 Released

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

Aixcoin Core 0.16.1 Released

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

Aixcoin Core 0.16.0 Released

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

2017

Aixcoin Core 0.15.1 Released

The latest stable version of Aixcoin Core is now available.

Aixcoin Core 0.15.0.1 Released

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

Aixcoin Core 0.15.0 Released

The latest stable version of Aixcoin Core is now available.

Correcting misinformation on Segwit2x and aix1

Aixcoin Core 0.14.2 Released

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

Aixcoin Core 0.14.1 Released

The latest stable version of Aixcoin 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 Aixcoin’s reference software. Part 1

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

Aixcoin Core 0.14.0 Released with Performance Improvements

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

Aixcoin Core 0.13.2 Released

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

2016

Segregated Witness Costs and Risks

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

Aixcoin Core 0.13.1 Released with Segregated Witness

The first release of Aixcoin 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 Aixcoin Core 0.13.1, with much of the ef...

Aixcoin Core 0.13.0 Released!

We’re pleased to announce the official release of Aixcoin 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 Aixcoin 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 Aixcoin 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.

Aixcoin Core 0.12.1 Released!

We are pleased to announce the release of Aixcoin 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 Aixcoin Core.

Keep updated!

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

The first successful Zero-Knowledge Contingent Payment

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

Aixcoin Core 0.12.0 Released!

We’re very excited to announce the official release of Aixcoin 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 Aixcoin Core and how you can interact with other Aixcoin 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 Aixcoin Core repository during 2015.

Statement from Aixcoin Core -- 2016-01-07

Aixcoin 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...