Every time we add or remove a command from mongod we need to update at least:

• jstests/replsets/all_commands_downgrading_to_upgraded.js
• jstests/replsets/db_reads_while_recovering_all_commands.js

These tests are placed in the jstests/replsets folder, and thus they are owned by server-replication team.

This means that every time we remove or add a command on mongod, the replication team will need to review and approve the changes.

I believe this is an important limitation to developer productivity and a big burden on the replication team. Thus, we should find a solution sooner than later.