add changelog & fixed copyright

Signed-off-by: wineway <[email protected]>

Author: wineway

CHANGELOG.md

@@ -18,6 +18,7 @@
 * Fix #4383: bump snakeyaml from 1.30 to 1.31
 
 #### New Features
+* Feat: add annotation @PreserveUnknownFields for generation field
 
 #### _**Note**_: Breaking changes in the API
 * Fix #4350: SchemaSwap's fieldName parameter now expects a field name only, not a method or a constructor.

crd-generator/api/src/main/java/io/fabric8/crd/generator/annotation/PreserveUnknownFields.java

@@ -1,5 +1,5 @@
 /**
- * Copyright (C) 2022 Red Hat, Inc.
+ * Copyright (C) 2015 Red Hat, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

doc/CRD-generator.md

@@ -359,6 +359,28 @@ Corresponding `x-kubernetes-preserve-unknown-fields: true` will be generated in
             x-kubernetes-preserve-unknown-fields: true
 ```
 
+You can also annotation a field with @PreserveUnknownFields:
+
+```java
+interface ExampleInterface {}
+
+public class ExampleSpec {
+    @PreserveUnknownFields
+    ExampleInterface someValue;
+}
+```
+
+will be generated as:
+
+```yaml
+          spec:
+            properties:
+              someValue:
+                type: object
+                x-kubernetes-preserve-unknown-fields: true
+            type: object
+```
+
 ## Features cheatsheet
 
 | Annotation | Description |