I used v0.14 to run the test network, but when I started synchronizing to the latest block, I ran out of memory, executed commands like dash-cli with no response, and started synchronizing from the first block after restarting.
How to use the test network? I installed the latest wallet 0.13.3 on the official network. The test network can not be synchronized to the latest block, but only to the block height 78808. How to upgrade to 0.14?