Welcome to Wikimedia development! (Summer of 2020)
Hello fellow contributors, developers, and colleagues,
This is a semiannual refresher on Wikimedia development policies. Whether
you joined last week, or have been here for a decade, I hope this helps you
navigate our current practices. (See changelog below.) Feel free to use
this thread to ask or answer questions about any of these!
Before you use internal code or extend core in an undocumented way, it’s
best to start a conversation on Phabricator first. Explain your use case
and decide together how to proceed. Also involve the maintainers or code
stewards of the component in question.