chore: release 0.1.0 preparation

AGENTS.md

@@ -476,16 +476,18 @@ One-time setup (browser, by the repository owner):
 
 Release flow (see `release.yml`):
 
-1. Land a preparation PR: set the release version in the root POM, move the
-   `CHANGELOG.md` entries out of `[Unreleased]`.
+1. Land a preparation PR: set the release version everywhere with
+   `./mvnw versions:set -DnewVersion=<version> -DgenerateBackupPoms=false`
+   from a clean tree (never edit versions file by file — a half-changed reactor
+   does not build), and move the `CHANGELOG.md` entries out of `[Unreleased]`.
 2. Tag `v<version>` on `main` and push the tag. The workflow checks the tag
    matches the POM version, then builds with the `release` profile (sources
    and Javadoc jars, license files in jars, GPG signatures) and stages a
    Portal deployment.
 3. Publish the staged deployment by hand in the Portal UI (`autoPublish` is
    `false` until the process is proven).
-4. Follow up on `main`: bump to the next `-SNAPSHOT` version and open a new
-   `[Unreleased]` changelog section.
+4. Follow up on `main`: bump to the next `-SNAPSHOT` version the same way
+   (`versions:set`) and open a new `[Unreleased]` changelog section.
 
 ---
 

CHANGELOG.md

@@ -7,6 +7,8 @@ and the project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [0.1.0] - 2026-09-17
+
 ### Added
 
 - `problem-details-core`: immutable RFC 9457 model — `ProblemDetail` with builder,

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>io.github.othmaneataallah</groupId>
     <artifactId>problem-details-java</artifactId>
-    <version>0.1.0-SNAPSHOT</version>
+    <version>0.1.0</version>
 
     <packaging>pom</packaging>
 

problem-details-core/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>io.github.othmaneataallah</groupId>
         <artifactId>problem-details-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
+        <version>0.1.0</version>
     </parent>
 
     <artifactId>problem-details-core</artifactId>

problem-details-jackson/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>io.github.othmaneataallah</groupId>
         <artifactId>problem-details-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
+        <version>0.1.0</version>
     </parent>
 
     <artifactId>problem-details-jackson</artifactId>

problem-details-jaxrs/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>io.github.othmaneataallah</groupId>
         <artifactId>problem-details-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
+        <version>0.1.0</version>
     </parent>
 
     <artifactId>problem-details-jaxrs</artifactId>

problem-details-registry/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>io.github.othmaneataallah</groupId>
         <artifactId>problem-details-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
+        <version>0.1.0</version>
     </parent>
 
     <artifactId>problem-details-registry</artifactId>

problem-details-spring/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>io.github.othmaneataallah</groupId>
         <artifactId>problem-details-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
+        <version>0.1.0</version>
     </parent>
 
     <artifactId>problem-details-spring</artifactId>

problem-details-xml/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>io.github.othmaneataallah</groupId>
         <artifactId>problem-details-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
+        <version>0.1.0</version>
     </parent>
 
     <artifactId>problem-details-xml</artifactId>