Fix go install @latest failures by documenting specific version

[Copilot]

go install go-micro.dev/v5/cmd/protoc-gen-micro@latest fails with module path conflicts because Go proxy has cached v0-v3 tags using incompatible module paths (github.com/micro/go-micro, github.com/asim/go-micro/v3, etc).

go: go-micro.dev/v5/cmd/protoc-gen-micro@latest: version constraints conflict:
    go-micro.dev/v5/cmd/protoc-gen-micro@v1.18.0: parsing go.mod:
    module declares its path as: github.com/micro/go-micro
            but was required as: go-micro.dev/v5/cmd/protoc-gen-micro

Changes

• Documentation: Replace @latest with @v5.13.0 in all install commands
• User guidance: Add notes explaining version pinning with links to releases page
• Files updated: README.md, getting-started.md, server.md, migration guides, CLI README

Why Not Delete Tags or Use Retract

Investigated but rejected:

• Tag deletion: Go proxy cache persists (173 cached versions). Destructive, no benefit.
• Retract directive: Only works within same major version. Cannot retract v0-v3 from v5 go.mod.

Module Path History

Version	Module Path	Status
v0-v1	github.com/micro/go-micro	❌ Incompatible
v2	github.com/micro/go-micro/v2	❌ Incompatible
v3	github.com/asim/go-micro/v3	❌ Incompatible
v4-v5	go-micro.dev/v{4,5}	✅ Compatible

Documenting specific version is the only viable solution given Go module proxy behavior and retract limitations.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[QUESTION] About Go Install Cmd Package Failed With @latest tag</issue_title>
<issue_description>## Your question
Document https://go-micro.dev/docs/getting-started.html recormend go install go-micro.dev/v5/cmd/protoc-gen-micro@latest, but failed with follow message

go install go-micro.dev/v5/cmd/protoc-gen-micro@latest
go: go-micro.dev/v5/cmd/protoc-gen-micro@latest: version constraints conflict:
        go-micro.dev/v5/cmd/protoc-gen-micro@v1.18.0: parsing go.mod:
        module declares its path as: github.com/micro/go-micro
                but was required as: go-micro.dev/v5/cmd/protoc-gen-micro

What have you tried?

Try https://github.com/micro/go-micro/tree/master/cmd/protoc-gen-micro recormend go install go-micro.dev/v5/cmd/protoc-gen-micro@v5.10.0, and success.

go install go-micro.dev/v5/cmd/micro@v5.10.0
go: downloading github.com/golang-jwt/jwt/v5 v5.3.0
go: downloading github.com/xlab/treeprint v1.2.0
go: downloading github.com/stretchr/objx v0.5.2
go: downloading github.com/imdario/mergo v0.3.13

Context

My Question is the document was misunderstand. Hope can give some solution and make document less wrong infomation.

Resources you've checked

• Getting Started Guide
• Examples
• API Documentation
• Searched existing issues

Helpful links

• Documentation
• Plugins Guide
  </issue_description>

<agent_instructions>Resolve this issue. We've been dealing with inability to install latest for a long time. If it requires deleting old tags so be it but understand the issue and fix it.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes [QUESTION] About Go Install Cmd Package Failed With @latest tag #2838

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.