Below are some important notes on upgrading to Confluence 4.0.4. For details of the fixes in this release, please read the release notes.

アップグレード手順
すでに Confluence のいずれかのバージョンを実行している場合、以下の手順に従って最新バージョンにアップグレードしてください。
- Before you upgrade, we strongly recommend that you back up your Confluence Home directory and database.
Read more about finding your Home directory. - If your version of Confluence is earlier than 3.5.x, then you should upgrade to Confluence 3.5.x before upgrading to Confluence 4.0.x.
- If your version of Confluence is earlier than 4.0, read the release notes and upgrade guides for all releases between your version and the latest version.
In particular:- Please read the Confluence 4.0 Upgrade Notes.
- Please read the Confluence 3.5 Upgrade Notes.
- If you are upgrading from 2.1 or earlier, please also read the 2.2 release notes.
- If your site contains links to a file system (for example [\\\C:\Foo\Bar\foobarpreso.ppt] these may break when upgrading to Confluence 4.0.x. We recommend that you upgrade directly to Confluence 5.0.3. Refer to
for more details.
- Download the latest version of Confluence.
- Follow the instructions in the Upgrade Guide.