Add feature maturity for package manager formats

doc/user/packages/composer_repository/index.md

@@ -10,6 +10,11 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 > - [Moved](https://gitlab.com/gitlab-org/gitlab/-/issues/221259) to GitLab Free in 13.3.
 > - Support for Composer 2.0 [added](https://gitlab.com/gitlab-org/gitlab/-/issues/259840) in GitLab Free 13.10.
 
+WARNING:
+The Composer package registry for GitLab is under development and isn't ready for production use due to
+limited functionality. This [epic](https://gitlab.com/groups/gitlab-org/-/epics/6817) details the remaining 
+work and timelines to make it production ready. 
+
 Publish [Composer](https://getcomposer.org/) packages in your project's Package Registry.
 Then, install the packages whenever you need to use them as a dependency.
 

doc/user/packages/conan_repository/index.md

@@ -9,6 +9,11 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/8248) in GitLab Premium 12.6.
 > - [Moved](https://gitlab.com/gitlab-org/gitlab/-/issues/221259) to GitLab Free in 13.3.
 
+WARNING:
+The Conan package registry for GitLab is under development and isn't ready for production use due to
+limited functionality. This [epic](https://gitlab.com/groups/gitlab-org/-/epics/6816) details the remaining 
+work and timelines to make it production ready. 
+
 Publish Conan packages in your project's Package Registry. Then install the
 packages whenever you need to use them as a dependency.
 

doc/user/packages/debian_repository/index.md

@@ -12,7 +12,8 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 WARNING:
 The Debian package registry for GitLab is under development and isn't ready for production use due to
-limited functionality.
+limited functionality. This [epic](https://gitlab.com/groups/gitlab-org/-/epics/6057) details the remaining 
+work and timelines to make it production ready. 
 
 Publish Debian packages in your project's Package Registry. Then install the
 packages whenever you need to use them as a dependency.

doc/user/packages/go_proxy/index.md

@@ -9,10 +9,14 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/27376) in GitLab Premium 13.1.
 > - It's deployed behind a feature flag, disabled by default.
 > - It's disabled for GitLab.com.
-> - It's not recommended for production use.
 > - To use it in GitLab self-managed instances, ask a GitLab administrator to [enable it](#enable-the-go-proxy).
 > - [Moved](https://gitlab.com/gitlab-org/gitlab/-/issues/221259) to GitLab Free in 13.3.
 
+WARNING:
+The Go package registry for GitLab is under development and isn't ready for production use due to
+limited functionality. This [epic](https://gitlab.com/groups/gitlab-org/-/epics/3043) details the remaining 
+work and timelines to make it production ready. 
+
 With the Go proxy for GitLab, every project in GitLab can be fetched with the
 [Go proxy protocol](https://proxy.golang.org/).
 

doc/user/packages/helm_repository/index.md

@@ -8,6 +8,11 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/18997) in GitLab 14.1.
 
+WARNING:
+The Helm chart registry for GitLab is under development and isn't ready for production use due to
+limited functionality. This [epic](https://gitlab.com/groups/gitlab-org/-/epics/6366) details the remaining 
+work and timelines to make it production ready. 
+
 Publish Helm packages in your project's Package Registry. Then install the
 packages whenever you need to use them as a dependency.
 

doc/user/packages/index.md

@@ -10,20 +10,31 @@ The GitLab [Package Registry](package_registry/index.md) acts as a private or pu
 for a variety of common package managers. You can publish and share
 packages, which can be easily consumed as a dependency in downstream projects.
 
+WARNING:
+Not all package manager formats are ready for production use. To view each format's status, see the
+table's **Status** column.
+
 The Package Registry supports the following formats:
 
-| Package type | GitLab version |
-| ------------ | -------------- |
-| [Composer](composer_repository/index.md) | 13.2+ |
-| [Conan](conan_repository/index.md) | 12.6+ |
-| [Go](go_proxy/index.md) | 13.1+ |
-| [Helm](helm_repository/index.md) | 14.1+ |
-| [Maven](maven_repository/index.md) | 11.3+ |
-| [npm](npm_registry/index.md) | 11.7+ |
-| [NuGet](nuget_repository/index.md) | 12.8+ |
-| [PyPI](pypi_repository/index.md) | 12.10+ |
-| [Generic packages](generic_packages/index.md) | 13.5+ |
-| [Ruby gems](rubygems_registry/index.md) | 13.10+ |
+| Package type | GitLab version | Status |
+| ------------ | -------------- |------- |
+| [Maven](maven_repository/index.md) | 11.3+ | Stable |
+| [npm](npm_registry/index.md) | 11.7+ | Stable |
+| [NuGet](nuget_repository/index.md) | 12.8+ | Stable |
+| [PyPI](pypi_repository/index.md) | 12.10+ | Stable |
+| [Generic packages](generic_packages/index.md) | 13.5+ | Stable |
+| [Composer](composer_repository/index.md) | 13.2+ | [Beta](https://gitlab.com/groups/gitlab-org/-/epics/6817) |
+| [Conan](conan_repository/index.md) | 12.6+ | [Beta](https://gitlab.com/groups/gitlab-org/-/epics/6816) |
+| [Helm](helm_repository/index.md) | 14.1+ | [Beta](https://gitlab.com/groups/gitlab-org/-/epics/6366) |
+| [Debian](debian_repository/index.md) | 14.2+ | [Alpha](https://gitlab.com/groups/gitlab-org/-/epics/6057) |
+| [Go](go_proxy/index.md) | 13.1+ | [Alpha](https://gitlab.com/groups/gitlab-org/-/epics/3043) |
+| [Ruby gems](rubygems_registry/index.md) | 13.10+ | [Alpha](https://gitlab.com/groups/gitlab-org/-/epics/3200) |
+
+Status:
+
+- Alpha: behind a feature flag and not officially supported.
+- Beta: several known issues that may prevent expected use.
+- Stable: ready for production use.
 
 You can also use the [API](../../api/packages.md) to administer the Package Registry.
 
@@ -40,12 +51,12 @@ guides you through the process.
 | CocoaPods | [#36890](https://gitlab.com/gitlab-org/gitlab/-/issues/36890) |
 | Conda     | [#36891](https://gitlab.com/gitlab-org/gitlab/-/issues/36891) |
 | CRAN      | [#36892](https://gitlab.com/gitlab-org/gitlab/-/issues/36892) |
-| Debian    | [Draft: Merge Request](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/50438) |
 | Opkg      | [#36894](https://gitlab.com/gitlab-org/gitlab/-/issues/36894) |
 | P2        | [#36895](https://gitlab.com/gitlab-org/gitlab/-/issues/36895) |
 | Puppet    | [#36897](https://gitlab.com/gitlab-org/gitlab/-/issues/36897) |
-| RPM       | [#5932](https://gitlab.com/gitlab-org/gitlab/-/issues/5932) |
+| RPM       | [#5932](https://gitlab.com/groups/gitlab-org/-/epics/5128)    |
 | SBT       | [#36898](https://gitlab.com/gitlab-org/gitlab/-/issues/36898) |
+| Swift     | [#12233](https://gitlab.com/gitlab-org/gitlab/-/issues/12233) |
 | Vagrant   | [#36899](https://gitlab.com/gitlab-org/gitlab/-/issues/36899) |
 
 <!-- vale gitlab.Spelling = YES -->

doc/user/packages/rubygems_registry/index.md

@@ -9,8 +9,9 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 > [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/803) in [GitLab Free](https://about.gitlab.com/pricing/) 13.10.
 
 WARNING:
-The Ruby gems registry for GitLab is under development and isn't ready for production use due to
-limited functionality.
+The Ruby gems package registry for GitLab is under development and isn't ready for production use due to
+limited functionality. This [epic](https://gitlab.com/groups/gitlab-org/-/epics/3200) details the remaining 
+work and timelines to make it production ready. 
 
 You can publish Ruby gems in your project's Package Registry, then install the packages when you
 need to use them as a dependency. Although you can push gems to the registry, you cannot install