diff --git a/README.md b/README.md
index e4bfa3a..e98f519 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,33 @@ In turn this can be used by [Diffblue Cover](https://diffblue.com/cover) to tune
 Cover Annotations is published in the [Maven central repository](https://central.sonatype.com/artifact/com.diffblue.cover/cover-annotations/overview).
 In order to use the annotations simply add `cover-annotations` as a dependency to your project, for example copying the snippet for Maven or Gradle from the repository page.
 
+### Maven
+
+For installation into a Maven project the `provided` scope is recommended so that the annotations are available at compile and test time, but are not bundled with the project output:
+
+```
+<dependencies>
+    <dependency>
+        <groupId>com.diffblue.cover</groupId>
+        <artifactId>cover-annotations</artifactId>
+        <version>1.4.0</version>
+        <scope>provided</scope>
+    </dependency>
+</dependencies>
+```
+
+### Gradle
+
+For installation into a Gradle project the `compileOnly` and `testImplementation` configurations are recommended so that the annotations are available at compile and test time, but are not bundled with the project output:
+
+```
+dependencies {
+    compileOnly("com.diffblue.cover:cover-annotations:1.4.0")
+
+    testImplementation("com.diffblue.cover:cover-annotations:1.4.0")    
+}
+```
+
 ## Usage
 
 Annotations placed on packages affect tests for all classes and methods under test in that package.
diff --git a/pom.xml b/pom.xml
index 820f7cf..97786d6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,7 +16,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.diffblue.cover</groupId>
   <artifactId>cover-annotations</artifactId>
-  <version>1.3.0</version>
+  <version>1.4.0</version>
   <packaging>jar</packaging>
 
   <name>Cover Annotations</name>
diff --git a/src/main/java/com/diffblue/cover/annotations/ContributionFromDiffblue.java b/src/main/java/com/diffblue/cover/annotations/ContributionFromDiffblue.java
new file mode 100644
index 0000000..244b696
--- /dev/null
+++ b/src/main/java/com/diffblue/cover/annotations/ContributionFromDiffblue.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2025 Diffblue Limited.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+package com.diffblue.cover.annotations;
+
+/**
+ * Empty interface, required, with the Category annotation, to label JUnit 4 tests in the following
+ * manner: @Category(ContributionFromDiffblue.class).
+ *
+ * <p>Identifies a test that has contributions from Diffblue.
+ */
+public interface ContributionFromDiffblue {}
diff --git a/src/main/java/com/diffblue/cover/annotations/ManagedByDiffblue.java b/src/main/java/com/diffblue/cover/annotations/ManagedByDiffblue.java
new file mode 100644
index 0000000..5887dc9
--- /dev/null
+++ b/src/main/java/com/diffblue/cover/annotations/ManagedByDiffblue.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 Diffblue Limited.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+package com.diffblue.cover.annotations;
+
+/**
+ * Empty interface, identifies a test as managed by Diffblue. Tests annotated with this can be
+ * removed or updated by Diffblue and so should not be adjusted manually.
+ */
+public interface ManagedByDiffblue {}