So I guess no one noticed the blacklisting in the new 0.13.1 code?
So if you run 0.13.1 you will find that it will connect to other 0.13.1 nodes on the network, but not to 0.13.0 or lower.
i.e. you are disconnecting yourself from the majority of pools, mining transactions on the network.
At the moment that's ~75% of blocks.
Your txns can of course get to the pools via other roundabout ways, but you wont connect to them directly.
Yeah even the main core developers implement blacklists without making it clear they exist

To ensure that the network is not partitioned and that segwit blocks are being passed to segwit enabled nodes, a Core 0.13.1 node will use its outgoing connection slots to connect to as many nodes with the NODE_WITNESS service bit as possible (right now only Core 0.13.1 nodes). However a 0.13.1 node will still accept incoming connections from older nodes. There is no blacklisting going on, just preference for the outgoing connections to connect to nodes of the same capabilities.