System requirements

For a trouble-free installation of the current version of BlueSpice 4, we recommend the following system requirements.

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Warning!PHP version 8.1 is currently not supported!

Operating system:
- We strongly recommend Linux (preferably Debian 11, Ubuntu 22.04, CentOS 7)
- You might use Windows Server starting at 2016, but we have seen performance issues on Windows Server
Webserver:
- Apache 2.4.x, IIS >= 10 or nginx 1.x (nginx not possible in WikiFarm)
PHP:
- PHP 7.4: BlueSpice 4.2.x runs completely stable
- PHP 8.0: Starting with BlueSpice 4.2.4
- PHP 8.1: Starting from BlueSpice 4.3.x (in planning)
Database:
- MySQL: >= 5.6 or
- MariaDB >= 10.3
(Virtual) hardware requirements:
- CPU:
  - Linux: 8 Cores (min. 4 Cores)
  - Windows: 16 Cores (min. 8 Cores)
- Main memory:
  - Linux: 16 GB (min. 8GB)
  - Windows: min. 16 GB
- Available hard drive space:
  - > 20 GB (depends on the planned storage of data)
Other:
- Apache Tomcat >= 9 oder Jetty >= 9 (for PDF export and LaTexRenderer)
- ElasticSearch 6.8 with plugin “ingest-attachment”
- OpenJDK >= 10
- NodeJS 16

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