diff --git a/docs/architecture/PRODUCT_EXPERIENCE_AND_MODULE_BOUNDARIES.md b/docs/architecture/PRODUCT_EXPERIENCE_AND_MODULE_BOUNDARIES.md
index d7153e1..23ed654 100644
--- a/docs/architecture/PRODUCT_EXPERIENCE_AND_MODULE_BOUNDARIES.md
+++ b/docs/architecture/PRODUCT_EXPERIENCE_AND_MODULE_BOUNDARIES.md
@@ -72,6 +72,23 @@ Each WebUI module should be able to announce:
 The contract references surfaces. It does not permit Core or a product package
 to import their implementation.
 
+The first versioned `product_surfaces` slice is now implemented in Core. It
+binds a stable product identity and entry path to one or more owner routes,
+View surfaces, presentations, capabilities, search sources, help contexts and
+documentation topics. It also carries standard unavailable/degraded
+explanations and migration aliases. Mail and Postbox contribute the first
+shared identity, `communication.messages`: `/messages` and the migration alias
+`/inbox` select the first currently authorized, View-visible owner while the
+underlying `/mail` and `/postbox` deep links, custody and permissions remain
+unchanged. Alias resolution emits a bounded client telemetry event before the
+redirect.
+
+Core's `ProductAvailabilityState` is the shared presentation primitive for
+authorization, Policy, configuration, disabled, missing-capability, offline and
+provider-degraded states. Product language is primary; exact module,
+capability, provider and correlation provenance is available only in an
+expandable technical section.
+
 ## Navigation Model
 
 The default shell should prioritize:
@@ -132,9 +149,9 @@ first rail slice.
 
 ### Slice 1: inventory and aliases
 
-- classify every route, navigation item, widget, setting, search object, and
+- continue classifying every route, navigation item, widget, setting, search object, and
   help context by product area and object type;
-- add product aliases without removing existing deep links;
+- extend the implemented product-surface aliases without removing existing deep links;
 - flag raw module IDs in ordinary-user labels and errors.
 
 ### Slice 2: work-first shell
diff --git a/packages/govoplan-meta/pyproject.toml b/packages/govoplan-meta/pyproject.toml
index 19aa54b..6f80f0b 100644
--- a/packages/govoplan-meta/pyproject.toml
+++ b/packages/govoplan-meta/pyproject.toml
@@ -4,13 +4,13 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "govoplan"
-version = "0.1.39"
+version = "0.1.40"
 description = "Developer convenience package for a versioned GovOPlaN composition"
 readme = "README.md"
 requires-python = ">=3.12"
 license = { text = "AGPL-3.0-or-later" }
 dependencies = [
-  "govoplan-core[server]==0.1.39",
+  "govoplan-core[server]==0.1.40",
   "govoplan-tenancy==0.1.20",
   "govoplan-organizations==0.1.20",
   "govoplan-identity==0.1.20",
@@ -21,7 +21,7 @@ dependencies = [
   "govoplan-audit==0.1.20",
   "govoplan-dashboard==0.1.20",
   "govoplan-files==0.1.23",
-  "govoplan-mail==0.1.24",
+  "govoplan-mail==0.1.25",
   "govoplan-campaign==0.1.27",
   "govoplan-calendar==0.1.22",
   "govoplan-docs==0.1.22",
@@ -64,7 +64,7 @@ full = [
   "govoplan-permits==0.1.20",
   "govoplan-poll==0.1.20",
   "govoplan-portal==0.1.21",
-  "govoplan-postbox==0.1.21",
+  "govoplan-postbox==0.1.22",
   "govoplan-procurement==0.1.20",
   "govoplan-projects==0.1.19",
   "govoplan-quick-access==0.1.20",
diff --git a/requirements-release.txt b/requirements-release.txt
index 41c54ce..83f6d06 100644
--- a/requirements-release.txt
+++ b/requirements-release.txt
@@ -11,7 +11,7 @@ govoplan-policy @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-policy.git@v0
 govoplan-audit @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-audit.git@v0.1.20
 govoplan-dashboard @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-dashboard.git@v0.1.20
 govoplan-files @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-files.git@v0.1.23
-govoplan-mail @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-mail.git@v0.1.24
+govoplan-mail @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-mail.git@v0.1.25
 govoplan-campaign @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-campaign.git@v0.1.27
 govoplan-calendar @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-calendar.git@v0.1.22
 govoplan-docs @ git+ssh://git@git.add-ideas.de/GovOPlaN/govoplan-docs.git@v0.1.22