Version 2.2.1b

Version 2.2.1b Change log:

• Optimized performance and reduced wasted CPU cycles. This fixed various issues that started after the new staking protocol was activated. Such as the wallet failing to broadcast a transaction or forking off to the wrong chain.
• Added block checkpoints.
• Fixed staking icon showing as gray even while you were staking.
• Fixed fee rounding error while using the minimum fee, and set the minimum TX fee to 0.00003 per KB. This rounding error could have caused a transaction to be stuck before enough stakers updated to this version. (Which happened already.)
• Updated the new Mac OS wallet with icons that use the new logo and fixed the pink borders issue.
• Fixed masternode starting/syncing problem of v.2.2 that occurred after the Staking Protocol Upgrade came into effect.

Updating your Bitcoin 2 Core wallet to this version is not mandatory if you already had the v.2.2, but it is very highly recommended, especially if you had any problems whatsoever.

It is also highly recommended to update all your Masternodes' wallets to this version, especially those that you were not able to start successfully.

To update, you just need to download the archive, stop your wallet and let it fully shutdown, and then copy the executable files in the bitcoin2-bin folder to replace the ones you had installed already.

After upgrading your Masternode and your desktop wallet, you should go in the Masternodes tab on your controller wallet and click to Start the upgraded Masternodes after they are reported as "missing".

File type of the Linux 64-bit version now appears as application/shared-lib on some systems. This is because the executables are hardened for extra security. The original Bitcoin Core executables appear as application/shared-lib on those systems too. You can launch it from the command line with ./bitcoin2-qt or create a shortcut or a shell script that simply launches it.