@@ -19,8 +19,8 @@ variables:
   buildConfiguration: Release
   NuGetOrganizationName: 'openapinet'
   privateFeedBaseUrl: 'https://microsoftgraph.pkgs.visualstudio.com/0985d294-5762-4bc2-a565-161ef349ca3e/_packaging/GraphDeveloperExperiences_Public'
-  # Keep OFF until destination merges and source publishing is cut over.
-  hidiPublishingEnabled: 'false'
+  # Merge only after official signed-pack verification and source publisher cutover.
+  hidiPublishingEnabled: 'true'
   hidiPreviewPublishingEnabled: 'false'
 
 resources:
 
@@ -66,13 +66,23 @@ Routing follows package directories, not commit scopes. Hidi tests outside the
 source package are excluded from OData releases and do not independently trigger
 a Hidi release. Root distribution/helper files remain outside the Hidi component;
 they follow the root package's standard routing, not custom Hidi routing.
-Existing root OData exclusions remain configured. The official Hidi
-package/container publishing gates remain disabled during migration.
+Existing root OData exclusions remain configured. On `main`, the official Hidi
+pipeline sets `hidiPublishingEnabled: 'true'` for stable tag publishing and
+retains `hidiPreviewPublishingEnabled: 'false'`; preview publishing remains off.
+This enablement must remain unmerged until the
+[release cutover prerequisites](src/Microsoft.OpenApi.Hidi/readme.md#release-cutover-prerequisites)
+are satisfied.
 
 The ADO OData pipeline accepts `v3.*` tags and deploys only the exact OData
 package matching that tag and `Directory.Build.props`. The dedicated Hidi
 pipeline accepts `hidi-v3.*` tags; its package, symbols, executable, ZIP and
 container version must match the Hidi tag/project version. Malformed,
 other-component or mismatched tags fail validation rather than publishing a
-different component. With publishing disabled, branch/PR builds remain validation-only; the existing
-Hidi publishing flags, migration floor and protected environments are unchanged.
+different component. Branch/PR builds remain validation-only: the unchanged
+stable stage condition requires a successful build, the stable flag and a
+`refs/tags/hidi-v3.` prefix. The preview stage also requires the preview flag,
+which remains false. Tag validation, the migration floor and protected
+environments are unchanged. Changing main's YAML does not change an existing
+tagged revision or an already compiled pipeline run; publication requires an
+approved corrected release ref/version after cutover, not a rerun or retag of
+the old `hidi-v3.11.0` revision.
@@ -94,8 +94,12 @@ The NuGet package remains `Microsoft.OpenApi.Hidi` and the command remains `hidi
 Hidi 3.x is maintained on `main`; Hidi 2.x is maintained on `support/v2`.
 Both tracks use independent versions and require the .NET 8 runtime.
 Building this repository, including the Hidi tests, requires the .NET 10 SDK.
-Destination Hidi release publishing is disabled during the migration; the
-source repository remains intact until the destination PRs are completed.
+The main Hidi pipeline sets `hidiPublishingEnabled: 'true'` for stable
+`hidi-v3.*` tag releases; `hidiPreviewPublishingEnabled: 'false'` keeps main
+previews off. This enablement must not merge until the signed-pack corrections
+are accepted, a fresh official publish-disabled build verifies the packaged
+Hidi DLL's signature and hash, and the source main publisher is retired for
+cutover. See [the release prerequisites](src/Microsoft.OpenApi.Hidi/readme.md#release-cutover-prerequisites).
 
 ---
 
 
@@ -68,10 +68,12 @@ does not change the existing OData test platform.
 
 The gated main Hidi publisher preserves the ESRP NuGet contract from
 [microsoft/OpenAPI.NET#3107](https://github.com/microsoft/OpenAPI.NET/pull/3107)
-(source commit `e1a75437b76ebfc7c9eb446e9fd0b59a21afb14b`). Official builds include
+(source commit `e1a75437b76ebfc7c9eb446e9fd0b59a21afb14b`). Official builds are intended to include
 the signed Hidi `.nupkg`, a matching `.snupkg` and the private-feed version-check
 script in the `Hidi` artifact. The `nuget-org` release job consumes that artifact
-without a repository checkout or the Docker context.
+without a repository checkout or the Docker context. Outer NuGet signing and
+a signed executable do not prove that the DLL inside the package is signed;
+the cutover prerequisites below require separate verification.
 
 Before ESRP publication, the job requires the exact `hidi-v3.*` release package
 and symbols with a version newer than 3.10.2. It checks
@@ -83,8 +85,9 @@ release's signed package, executable and ZIP attachments to be updated.
 
 ESRP receives only the exact Hidi package and matching symbols under the
 `openapinet` organization, retaining the source's federated DevX connection,
-publisher identity, owners and approvers. This handoff does not enable publishing
-or grant pipeline permissions. Owners must separately verify private-feed token
+publisher identity, owners and approvers. The main pipeline sets the stable
+publishing flag to `'true'`, but this does not grant pipeline permissions.
+Owners must separately verify private-feed token
 access, the ESRP connection and protected `nuget-org` environment authorization
 before cutover; local packaging does not prove production signing or publishing.
 
@@ -151,18 +154,46 @@ this handoff does not grant permissions or bypass service-connection approvals.
 The Dockerfile secret mount is optional, so local and GitHub Actions builds
 without a secret continue to use their default NuGet sources.
 
-The migration baseline 3.10.2 is already published. Destination Hidi NuGet,
-GitHub release, stable Docker and preview Docker publishing are disabled until
-source cutover. The first destination stable release must advance the Hidi
-version; OData releases use separate artifacts and tags.
+The migration baseline 3.10.2 is already published and must not be republished.
+On `main`, `hidiPublishingEnabled: 'true'` enables the stable NuGet, GitHub release
+attachments and Docker stage only for successful `hidi-v3.*` tag builds.
+`hidiPreviewPublishingEnabled: 'false'` keeps preview Docker publishing off,
+so main branch and PR builds do not publish. The existing exact tag/project
+validation, version floor newer than 3.10.2 and environment approvals remain
+required. OData releases use separate artifacts and tags.
 
 The gated official pipeline retains the consumer image
 `mcr.microsoft.com/openapi/hidi`, backed by
 `msgraphprodregistry.azurecr.io/public/openapi/hidi`. Stable images use `latest`
 and the independent Hidi version. Main previews use `nightly` and
 `VERSION.YYYYMMDDRUNNUM`, for `linux/amd64` and `linux/arm64/v8`.
-No image is pushed during this migration. Privileged cross-platform emulation
+This preparation does not authorize an image push. Privileged cross-platform emulation
 setup belongs only in the authorized CI pipeline, not a shared local environment.
+
+### Release cutover prerequisites
+
+Hold the stable enablement merge until the signed-pack corrections
+[#904](https://github.com/microsoft/OpenAPI.NET.OData/pull/904) (`support/v2`) and
+[#903](https://github.com/microsoft/OpenAPI.NET.OData/pull/903) (`main`) complete
+normal acceptance in v2-first order. Then verify a fresh official build with
+both publishing flags disabled: extract the Hidi DLL from the exact `.nupkg`,
+verify its genuine Microsoft Authenticode signature and SHA-256 equality with
+the signed DLL staged by that build, and verify the outer package and Windows
+executable signatures. A successful signing task or local packaging alone is
+not this proof. The old official artifacts contain an unsigned inner DLL and
+must not be republished.
+
+The source main publisher must also be retired and cutover approved; source
+cleanup is tracked in
+[microsoft/OpenAPI.NET#3111](https://github.com/microsoft/OpenAPI.NET/pull/3111).
+This draft preparation does not perform that retirement or grant resource access.
+
+Merging a YAML flag change on `main` does not change the YAML or binaries at an
+existing tag, or an already compiled pipeline run. The existing `hidi-v3.11.0`
+tag points to the old publish-disabled revision without the signed-pack fix.
+Do not move or reuse that tag, rerun it to publish, or republish its old artifact.
+Future publication requires a corrected release ref/version approved for cutover
+after the prerequisites above are met.
 
 ## How to use Hidi