Last Updated: 2021-05-16
In your deploy process, you should, at the very least, clear the cache before the latest version of your code is used (it usually gets used when you restart your server). This is because you don't want your server process reading from old cached data that might be incompatible with the updated code, for example because it references data fields that no longer exist.
I had this issue in Semicolon&Sons when I restarted my server after changing the
shape of my
series data JSON. This threw an exception, since the cached data
published_on field whereas the updated code had removed it.