ZeroOne Core 0.12.3.3 Release

ZeroOne Core 0.12.3.3 is a critical bugfix release of the ZeroOne Core 0.12.3.x series.

• Fixes a well known deadlock issue that caused nodes to hang.
• There was a serious vulnerability discovered in Bitcoin Core's codebase recently which
  can cause node receiving a specially crafted block to crash bitcoin#14247

We encourage all full node operators (masternodes, mining pools, explorers, exchanges etc.) to update ASAP.

Full release notes are available at https://github.com/zocteam/zeroonecoin/blob/v0.12.3.3/doc/release-notes.md,
release binaries can be downloaded above.

Note: this release does NOT require masternode owners to start their masternodes from cold wallets. Masternode operators should stop the daemon running on a remote node, replace old binaries with the new ones and start the daemon again.