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Release Announcement Bitcoin Classic 1.3.1

July 30, 2017.

Bitcoin Classic updates the 1.3 version to work better with UAHF.

This client is fully compatible with the Bitcoin Cash spin-off from Bitcoin, but using the default settings we ignore it. You can change the config-file, or we point you to the specialized UAHF version of Classic.


  • aaa6ba45 Add network-magic user-configuration options.
  • 86e84def Use forcednsseed by default prior to the fork
  • e1beca72 Reject from mempool the OP_RETURN anti-replay transactions
  • c5adb3a7 Make SCRIPT_VERIFY_STRICTENC mandatory on the UAHF chain
  • 9c0cca4e make anti-wipeout protection work.
  • eabcc022 32 bit architecture is really not relevant anymore.
  • c288a576 make the UAHF log lines show up in a default setup
  • db296323 Interrupt reindex when user requested shutdown

And various minor bugfixes and updates.

For more help with installation, and instructions how to download please visit

Download page | UAHF release Download page