# Cloud Forge migration ### About Atlassian Forge Forge is Atlassian’s new cloud app development platform. Forge apps run on infrastructure that is provisioned, managed, monitored, and scaled by Atlassian, rather than on vendor-managed hosting. Atlassian is moving the ecosystem to Forge via a phased end-of-support plan. Connect end of support is planned for December 2026. {% hint style="info" %} Forge is for Atlassian Cloud apps. It is not used for Jira Data Center apps. The Ativo Programs for Jira Data Center app is not impacted by this migration. {% endhint %} ### Migration Ativo Programs will **gradually migrate to Forge during 2026**. During the transition, Jira admins may notice the following changes. #### Forge custom fields (May 2026) From May 2026, Forge-based custom fields are added to Jira Cloud sites using Ativo Programs. These fields are expected to be used only for new installations starting May 2026. Ativo Programs installed before May 2026 will continue to use the classic custom fields, even when the new fields are also present. To see which Ativo fields are active in your site, go to:\ Jira admin → Manage apps → Ativo Programs → Fields More info on [Ativo Programs custom fields](/advanced/ativo-programs-custom-fields.md). #### Ativo REST API authentication changes (planned) Ativo Programs REST API keys and URLs are planned to evolve toward Forge-REST endpoints and Atlassian OAuth 2.0 (3LO) authentication. More details (including migration steps and timelines) will be provided in a later phase. #### App updates may require admin approval Some updates (commonly changes that increase/modify requested scopes/permissions) require admin approval before customers can use the updated version. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.ativo.io/advanced/cloud-forge-migration.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.