feat(core): Introduce simplified node versioning (#3205)

* ✨ Introduce simple node versioning

* ⚡ Add example how to read version in node-code for custom logic

* 🐛 Fix setting of parameters

* 🐛 Fix another instance where it sets the wrong parameter

* ⚡ Remove unnecessary TOODs

* ⚡ Revert Set Node example changes

* ;rotating_light: Add test

packages/core/test/Helpers.ts

@@ -517,6 +517,65 @@ class NodeTypesClass implements INodeTypes {
 				},
 			},
 		},
+		'n8n-nodes-base.versionTest': {
+			sourcePath: '',
+			type: {
+				description: {
+					displayName: 'Version Test',
+					name: 'versionTest',
+					group: ['input'],
+					version: 1,
+					description: 'Tests if versioning works',
+					defaults: {
+						name: 'Version Test',
+						color: '#0000FF',
+					},
+					inputs: ['main'],
+					outputs: ['main'],
+					properties: [
+						{
+							displayName: 'Display V1',
+							name: 'versionTest',
+							type: 'number',
+							displayOptions: {
+								show: {
+									'@version': [1],
+								},
+							},
+							default: 1,
+						},
+						{
+							displayName: 'Display V2',
+							name: 'versionTest',
+							type: 'number',
+							displayOptions: {
+								show: {
+									'@version': [2],
+								},
+							},
+							default: 2,
+						},
+					],
+				},
+				execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+					const items = this.getInputData();
+					const returnData: INodeExecutionData[] = [];
+
+					for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
+						const newItem: INodeExecutionData = {
+							json: {
+								versionFromParameter: this.getNodeParameter('versionTest', itemIndex),
+								versionFromNode: this.getNode().typeVersion,
+							},
+						};
+
+						returnData.push(newItem);
+					}
+
+					return this.prepareOutputData(returnData);
+				},
+			},
+		},
 		'n8n-nodes-base.set': {
 			sourcePath: '',
 			type: {