Jira Core: 過去のバージョンのダウンロード
Where can I download previous versions of JIRA?
サーバー版 / クラウド版
If you need to download older versions of JIRA, like JIRA 4.x, you can access previous versions on this page. To upgrade from older versions of JIRA we recommend to read this article, and you can also reach out to support as well if your maintenance is active.