Junio C Hamano <gitster@xxxxxxxxx> writes: >> + } else if (!strcmp(reader.line, "version 1")) { >> + die(_("v1 is just the original protocol with a version string, use v0 or v2 instead.")); > > The user may no longer get "invalid response; got 'version 1'", but > the above does not still explain why v1 is bad and v0 or v2 is > welcome, either. IOW, I do not think the patch improves the message > to achieve what it attempted to do, i.e. > > ... but the other side just treat it as "invalid response", this > can't explain why is not ok. Alternatively v1 is not supported; use v0 or v2 would explain why the connection is refused. It explains why it is not ok much clearly than "just the original with a version string". > I wonder if it is a sensible and better alternative to treat v1 > response as if we got v0 (if v1 is truly the same as v0 except for > the initial version advertisement). > > Input from those who are familiar with the protocol versions is very > much appreciated. This still stands; we reject because we don't support, but is it easy to support it instead, if there is no difference?