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# Vue3 app.version Property | \n\n* * *\n\n## What is `app.version`?\n\n`app.version` is a property of the `app` instance in Vue 3, used to get the version number of the current Vue application. This property is very useful for developers, especially when debugging or needing to execute different logic based on version information.\n\n### How to Use `app.version`\n\nIn Vue 3, you can use the `app.version` property by following these steps:\n\n1. **Create a Vue Application Instance**: First, you need to create a Vue application instance using the `createApp` function.\n2. **Access the `app.version` Property**: After creating the application instance, you can get the version number of the current Vue application through `app.version`.\n\n### Example Code\n\nHere is a simple example code demonstrating how to use the `app.version` property:\n\n## Instance\n\n```javascript\nimport{ createApp } from 'vue';\n\n// Create a Vue Application Instance\n\nconst app = createApp({});\n\n// Access and Print the Current Vue Version Number\n\n console.log('Current Vue Version:', app.version);\n\n// Mount Application\n\n app.mount('#app');\n\nIn this example, we first created a Vue application instance using the `createApp` function. Then, by accessing the `app.version` property, we obtained and printed the version number of the current Vue application.\n\n* * *\n\n## Application Scenarios for `app.version`\n\nThe `app.version` property has various application scenarios in actual development. Here are some common examples:\n\n### 1. Debugging and Logging\n\nWhen debugging a Vue application, it is very important to know the Vue version currently in use. You can log the version number when the application starts, or include version information in debug messages, which helps resolve issues related to specific versions.\n\n## Instance\n\n```javascript\nimport{ createApp } from 'vue';\n\nconst app = createApp({});\n\n console.log('App Startup, Current Vue Version:', app.version);\n\n app.mount('#app');