go version: 1.11.4
go.mod enabled.

go get github.com/labstack/echo can't get the correct latest version. to get the version 3.3.5, but latest version is 3.3.8.

in the latest golang modules wiki, need to Update the go.mod file to include a /v3 at the end of the module path in the module directive.

please review:

https://github.com/golang/go/wiki/Modules#releasing-modules-v2-or-higher