Bitcoin Core version 0.16.1 was just released yesterday and is already available for download, here I will try to summarize the main and most important changes and updates:
An attack vector for DDoSing recently started nodes was mitigated. Nodes that had been connected to the network for more than a few hours weren't vulnerable to this attack vector.
A bug was fixed were miners could loose profit if they mined two blocks one after another in very rapid succession.
Several transaction standardization rules were applied.
Limited the number of IP addresses that are learned from each DNS seed.
Small optimizations to the functioning of node wallets.
Fixed builds using Qt and added support for building to armv71
There are a few more upgrades but I tried to summarize the most important of them all here. If you would like to check the latest release notes, please head to the Bitcoin github!
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