In this case, you have to download new versions of the IDE and install them manually as described in Standalone installation. If IntelliJ IDEA does not have HTTP access outside your local network, it will not be able to check for updates and apply patches. However, sometimes patch updates are not available, and a new version of IntelliJ IDEA must be installed. Updates are usually patch-based: they are applied to the existing installation and only require you to restart the IDE. Updatesīy default, IntelliJ IDEA is configured to check for updates automatically and notify you when a new version is available. Changes that are added to online help during the release cycle may not be available in the offline help. The offline help plugin is updated when a new major version is released.

If you don't have internet access to view the online help, you can use the IntelliJ IDEA Help plugin, which serves the help pages via the built-in web server for offline use. If you are working offline (for example, in an isolated environment), there are some aspects that you should keep in mind. A lot of features in IntelliJ IDEA require access to the Internet.

Intellij install plugin