Upgrade to gaiad 0.22

instructions.md

First, fetch the latest upstream and build version 0.22:

git fetch --tags
git checkout HEAD Gopkg.lock
git checkout v0.22.0
make

Now double-check that you've built the right version with:

gaiad version

which should output

0.22.0-9f2b83cb

If it does, you're good to go!