Syscoin Core 4.2.2

Syscoin Core installation binaries can be downloaded from and the source-code is available from the Syscoin Core source repository.

4.2.2 Release Notes

Syscoin Core version 4.2.2 is now available from:

This release includes various bug fixes and performance improvements.

Please report bugs using the issue tracker at GitHub:

Upgrade Instructions: Basic upgrade instructions below:

How to Upgrade

If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer (on Windows) or just copy over /Applications/Syscoin-Qt (on Mac) or syscoind/syscoin-qt (on Linux).

If you are upgrading from a version older than 4.2.0, PLEASE READ:

This should reindex your local node and synchronize with the network from genesis.


Syscoin Core is supported and extensively tested on operating systems using the Linux kernel, macOS 10.12+, and Windows 7 and newer. It is not recommended to use Syscoin Core on unsupported systems.

Syscoin Core should also work on most other Unix-like systems but is not as frequently tested on them.

From Syscoin Core 4.1.0 onwards, macOS versions earlier than 10.12 are no longer supported. Additionally, Syscoin Core does not yet change appearance when macOS “dark mode” is activated.

Notable changes

  • Multi-Quorum Chainlocks (fix relay bug)
  • Data directory fix (For users coming from old syscoin core causing data directory issues)
  • asset updating transaction RPC fix (proper p2sh/p2wsh flow - check for spendable AND solvable)


Thanks to everyone for the continued support of Syscoin.