Pimcore 4 LTS Package
Pimcore 4 is the last Pimcore version built on top of the Zend Framework 1 and is not actively further developed. The community support for this end-of-life (EOL) version ends with December 31, 2018.
You can purchase a commercial Pimcore 4 long-term-support (LTS) package which will provide fixes for critical bugs and security issues. This package will be available in the first quarter of 2019. Please get in contact for further information.