[null,null,["อัปเดตล่าสุด 2025-08-31 UTC"],[[["\u003cp\u003eVersions in Apps Script are static copies of your script, allowing you to track changes and revert to previous states if necessary.\u003c/p\u003e\n"],["\u003cp\u003eCreating versions is essential for libraries and projects undergoing frequent modifications, providing a history of your script's development.\u003c/p\u003e\n"],["\u003cp\u003eYou can easily create, view, compare, and delete versions within your Apps Script project using the provided steps.\u003c/p\u003e\n"],["\u003cp\u003eA maximum of 200 versions can be stored per script project, offering ample space for tracking your progress.\u003c/p\u003e\n"],["\u003cp\u003eVersions in use by active deployments cannot be deleted, ensuring that your deployed scripts remain functional.\u003c/p\u003e\n"]]],[],null,["# Versions\n\nA version is a static copy of a script. Versions let you track your\nchanges. Once you save a version, you can't modify it. Use versions when you're\nworking on a script that goes through many changes and iterations. Script\nprojects can have up to 200 versions.\n\nCreating versions is required when you're writing a library. For more\ninformation, see [Libraries](https://developers.google.com/apps-script/guides/libraries.html#creating-a-library).\n\nCreate a version\n----------------\n\nA version is automatically created when you create a new deployment. You can\nalso create a new version from an existing deployment by taking the following\nsteps:\n\n1. Open your script project.\n2. At the top, click **Deploy** \\\u003e **Manage\n deployments**.\n3. Select the active deployment to create a new version for and click Edit edit.\n4. In the **Version** section, select **New version**.\n5. Click **Deploy**.\n\nView a previous version\n-----------------------\n\nTo view a previously created version within your script project, take the\nfollowing steps:\n\n1. In your script project, click history **Project History**.\n2. Under **Project history**, select the version you want to view. To view the description of a version, hold the pointer over the version number.\n\nCompare a previous version to the current version\n-------------------------------------------------\n\nTo compare a previously created version to the current, or head, version, take\nthe following steps:\n\n1. In your script project, click history **Project History**.\n2. Under **Project history**, select the version you want to view.\n3. Turn on **Highlight changes**.\n\nDepending on the changes you've made since the selected version, the files list\nmight contain the following markers:\n\n| Marker | Type of change | Description |\n|--------|----------------|--------------------------------------------------------------------------------------------------------------------------------------|\n| | File added | This file is new in the current version. |\n| | File deleted | This file is no longer present in the current version. |\n| | File modified | This file has changes in the current version that weren't present in the selected version. To view the changes, click the file name. |\n\nRestore a version\n-----------------\n\n1. In your script project, click history **Project History**.\n2. Next to the version you want to restore, click more_vert **More actions** \\\u003e **Restore this version** \\\u003e **Restore**.\n\nDelete versions\n---------------\n\nYou can permanently delete\nversions if they're not in use by an active deployment. To archive a deployment\nor change the version that an active deployment uses,\nrefer to [Create and manage deployments](/apps-script/concepts/deployments).\n\n### Delete a version\n\nTo delete one version at a time, take the following steps:\n\n1. In your script project, click history **Project History**.\n2. Next to the version you want to delete, click more_vert **More actions** \\\u003e **Delete this version** \\\u003e **Delete**.\n\n### Delete multiple versions at once\n\nTo delete multiple versions at the same time, take the following steps:\n\n1. In your script project, click history **Project History**.\n2. Click **Bulk delete versions**. A dialog shows a list of versions that you can delete. Versions in use by an active deployment aren't included in the list.\n3. Select the versions to delete and click **Delete**.\n4. In the dialog, click **Delete**."]]
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