---
title: Apache Solr for TYPO3 – Advantages of Open Source
url: "https://www.typo3-solr.com/solr-for-typo3/open-source-version/"
description: "Open Source advantages with Apache Solr for TYPO3: secure, extensible, cost‑effective. Public version in TER; upgrade via Composer; configsets and Docker images."
date: 2021-08-30
modified: 2025-11-05
lastUpdated: 2025-11-05
---

# Apache Solr for TYPO3 – Advantages of Open Source

1. [Home](https://www.typo3-solr.com/)
2. [Solr for TYPO3](https://www.typo3-solr.com/solr-for-typo3/)
3. Open Source Version

  Advantages of Open Source
=========================

dkd strongly believes in Open Source. Not only because of the apparent advantage of being licence fee free. But also because **Open Source is more than just cost savings.** The idea of Open Source enables access to an enormous global pool of knowledge accompanied by

- quality and security on the highest level,
- short development and update cycles, and
- unbounded extensibility and ability of integration

Public Version of Solr for TYPO3
--------------------------------

You can always find Apache Solr for TYPO3 in the official [TYPO3 Extension Repository](https://extensions.typo3.org/extension/solr/ "get the current version of TYPO3 Extension Solr") (TER).

Upgrade Instructions
--------------------

We recommend to use Composer to install and upgrade the Solr extensions, otherwise you have to download and replace the Extensions manually.

EXT:solr requires specific schemas and e.g. our Access Filter Plugin, all required components are stored in our configsets that can be found within EXT:solr/Resources/Private/Solr/configset, just copy the configset to your Solr server and configure the right configset in the core properties file. We also provide Docker images that contain all required configurations: [hub.docker.com/r/typo3solr/ext-solr](https://hub.docker.com/r/typo3solr/ext-solr).

Existing installations need to re-index their sites as the index schema needed to be changed for the frontend user Access Filter Plugin and other improvements.

Feature Comparison
------------------

Need to know what the differences are between the public version and early access?

Check out the [comparison chart](https://www.typo3-solr.com/solr-for-typo3/development-model/#c2298).