chore(release): Maven Central 7.7.1 · PyPI 0.15.1 · NuGet 0.15.1

Patch-versioned release (by request) carrying the index.* type + identity.secondary
key-purity (ADR-0040) — a BREAKING metamodel change (@unique removed; new index.lookup
non-unique index type). Migration: identity.secondary @unique:false → index.lookup.
See CHANGELOG.md [0.15.1] + docs/features/migrations/. npm 0.15.1 follows via RC.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GF9xLEQZaPus5Y6opk398n

Author: claude

CHANGELOG.md

@@ -7,6 +7,21 @@ this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+## [0.15.1] — 2026-07-01
+
+_Maven Central `7.7.1` · PyPI `0.15.1` · NuGet `0.15.1` · npm `0.15.1`._
+
+> ⚠️ **This "patch" carries a BREAKING metamodel change** (versioned as a patch by request; treat it as breaking). Read the migration guide before upgrading: [`docs/features/migrations/identity-secondary-to-index-lookup.md`](docs/features/migrations/identity-secondary-to-index-lookup.md).
+
+### Changed
+- **BREAKING — `identity.secondary` is now a *unique* alternate key; `@unique` is removed** (ADR-0040). Uniqueness is encoded by the type, not a boolean — a legacy `@unique` on `identity.secondary` now fails load with `ERR_UNKNOWN_ATTR`.
+
+### Added
+- **New `index` type / `index.lookup` subtype — a *non-unique* retrieval index.** This is where a non-unique index now lives (previously mis-modeled as `identity.secondary @unique:false`). `@fields` is required (single or composite). The physical RDB escapes `@using` / `@expr` / `@where` / `@orders` are contributed by the db provider to both `index.lookup` and `identity.secondary`, consumed only by RDB codegen. `index.fulltext` / `index.vector` / `index.spatial` are reserved on the axis but not registered. Cross-port conformance-gated (registry, metadata, persistence). An `index.lookup` produces the same `CREATE INDEX` a non-unique index always did — **no schema/DDL churn** for the migrated form (a `verify`/migrate no-op).
+
+### Migration
+- `identity.secondary` with `unique: false` → **`index.lookup`** (drop `unique`, keep `name`/`fields`/any physical escape). `identity.secondary` with `unique: true` or absent → stays `identity.secondary`, drop the now-invalid `unique`. See the migration guide above.
+
 ## [0.15.0] — 2026-07-01
 
 _Coordinated minor with breaking changes — Maven Central `7.7.0` · PyPI `0.15.0` · NuGet `0.15.0`

server/csharp/Directory.Build.props

@@ -8,7 +8,7 @@
   -->
 
   <PropertyGroup>
-    <Version>0.15.0</Version>
+    <Version>0.15.1</Version>
     <Authors>Doug Mealing</Authors>
     <Company>Doug Mealing LLC</Company>
     <Product>MetaObjects</Product>

server/java/codegen-base/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.metaobjects</groupId>
         <artifactId>metaobjects</artifactId>
-        <version>7.7.1-SNAPSHOT</version>
+        <version>7.7.1</version>
     </parent>
 
     <artifactId>metaobjects-codegen-base</artifactId>

server/java/codegen-kotlin/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.metaobjects</groupId>
     <artifactId>metaobjects</artifactId>
-    <version>7.7.1-SNAPSHOT</version>
+    <version>7.7.1</version>
   </parent>
 
   <artifactId>metaobjects-codegen-kotlin</artifactId>

server/java/codegen-mustache/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.metaobjects</groupId>
         <artifactId>metaobjects</artifactId>
-        <version>7.7.1-SNAPSHOT</version>
+        <version>7.7.1</version>
     </parent>
 
     <artifactId>metaobjects-codegen-mustache</artifactId>

server/java/codegen-plantuml/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.metaobjects</groupId>
         <artifactId>metaobjects</artifactId>
-        <version>7.7.1-SNAPSHOT</version>
+        <version>7.7.1</version>
     </parent>
 
     <artifactId>metaobjects-codegen-plantuml</artifactId>

server/java/codegen-spring/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.metaobjects</groupId>
         <artifactId>metaobjects</artifactId>
-        <version>7.7.1-SNAPSHOT</version>
+        <version>7.7.1</version>
     </parent>
 
     <artifactId>metaobjects-codegen-spring</artifactId>

server/java/core-spring/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.metaobjects</groupId>
         <artifactId>metaobjects</artifactId>
-        <version>7.7.1-SNAPSHOT</version>
+        <version>7.7.1</version>
     </parent>
 
     <artifactId>metaobjects-core-spring</artifactId>

server/java/integration-tests-kotlin/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.metaobjects</groupId>
     <artifactId>metaobjects</artifactId>
-    <version>7.7.1-SNAPSHOT</version>
+    <version>7.7.1</version>
   </parent>
 
   <artifactId>metaobjects-integration-tests-kotlin</artifactId>

server/java/integration-tests/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.metaobjects</groupId>
     <artifactId>metaobjects</artifactId>
-    <version>7.7.1-SNAPSHOT</version>
+    <version>7.7.1</version>
   </parent>
 
   <artifactId>metaobjects-integration-tests</artifactId>