diff --git a/README.md b/README.md
index 922e2d3..0f37a1e 100644
--- a/README.md
+++ b/README.md
@@ -17,11 +17,19 @@ of extracting a dependency.
 
 ## Compatibility
 
-Catalog IDs are stable. New profiles are additive. Corrections are released as
-compatible catalog updates when they preserve the profile contract; deprecated
-profiles are announced before removal in a compatible-major release. Manifest
-schema changes follow semantic-version compatibility rules and retain support
-for compatible published catalog versions.
+This compatibility policy applies to the `/v2` module. Catalog profiles track
+upstream availability and may be added, removed, renamed, or modified without
+deprecation or advance notice. Consumers that need a particular profile set
+should use the catalog version selected by their Promptkit release.
+
+Backend definitions, the exported Go API, and the catalog manifest schema do
+not share that profile-data exception. Their compatibility follows the normal
+semantic-versioning rules. Published v1 releases retain their historical
+contract; this README does not retroactively alter it.
+
+Catalog releases use dated versions in the form `v2.YYYYMMDD.N`. The date
+identifies when the catalog snapshot was published in UTC; it does not certify
+that a provider currently offers a model or endpoint named by the data.
 
 ## Validation and releases
 
diff --git a/docs/release.md b/docs/release.md
index a003d72..cb72a10 100644
--- a/docs/release.md
+++ b/docs/release.md
@@ -1,6 +1,18 @@
 # Catalog Release Procedure
 
-This repository releases source tags only. It has no generated artifacts.
+This repository releases source tags only. It has no generated artifacts. The
+module path is `gitea.maximumdirect.net/eric/promptkit-backend-rakestrawhome/v2`.
+
+## Version selection
+
+Release versions use `v2.YYYYMMDD.N`. `YYYYMMDD` is the actual UTC publication
+date. Begin at revision `0` for a date and increment `N` for each additional
+release on that date. Versions are immutable: correct a published catalog with
+a new dated version rather than moving or recreating a tag. This repository
+releases independently of other catalog modules, so dates and revisions need
+not match theirs.
+
+## Validate the source candidate
 
 Before creating a semantic version tag, start from a clean, synchronized
 `main` branch. Confirm that no Go workspace, `replace` directive, or `vendor`
@@ -8,8 +20,13 @@ tree is active, then run `GOWORK=off go test ./...`, `GOWORK=off go test -race
 ./...`, `GOWORK=off go vet ./...`, `GOWORK=off go build ./...`, formatting,
 repository-hygiene, credential, and ordinary module-resolution checks.
 
-Create an annotated tag only after that validation succeeds. Do not create or
-move an existing tag. Push `main`, push only the selected tag, and verify the
-remote tag identifies the intended commit. Finally, from a temporary module
-with `GOWORK=off` and no replacement, resolve the published module version and
-verify the resolved version is the selected tag.
+Confirm the module reports the `/v2` identity before publication. Create an
+annotated tag only after validation succeeds. Do not create or move an existing
+tag. Publish the validated source commit through `main`, then push only the
+selected annotated tag and verify that the remote tag and its peeled commit
+identify that source commit.
+
+Finally, from a temporary module with `GOWORK=off`, no workspace, no
+replacement, and no vendor tree, resolve the exact published
+`gitea.maximumdirect.net/eric/promptkit-backend-rakestrawhome/v2@version`.
+Verify both the resolved module identity and version match the selected tag.
diff --git a/go.mod b/go.mod
index 2d16942..ade14c1 100644
--- a/go.mod
+++ b/go.mod
@@ -1,4 +1,4 @@
-module gitea.maximumdirect.net/eric/promptkit-backend-rakestrawhome
+module gitea.maximumdirect.net/eric/promptkit-backend-rakestrawhome/v2
 
 go 1.25.5