diff --git a/src/implementing_new_features.md b/src/implementing_new_features.md index 36799a2d3..9147c1b41 100644 --- a/src/implementing_new_features.md +++ b/src/implementing_new_features.md @@ -28,6 +28,12 @@ get by with only an r+. For example, it is OK to add or modify unstable command-line flags or attributes without an FCP for compiler development or standard library use, as long as you don't expect them to be in wide use in the nightly ecosystem. +Some teams have lighter weight processes that they use in scenarios +like this; for example, the compiler team recommends +filing a Major Change Proposal ([MCP][mcp]) as a lightweight way to +garner support and feedback without requiring full consensus. + +[mcp]: compiler/mcp.md#public-facing-changes-require-rfcbot-fcp You don't need to have the implementation fully ready for r+ to propose an FCP, but it is generally a good idea to have at least a proof