23 Mar 2020
Koha is the first free and open source software library automation package (ILS). Development is sponsored by libraries of varying types and sizes, volunteers, and support companies from around the world. The website for the Koha project is:
Koha 18.11.15 can be downloaded from:
Installation instructions can be found at:
Koha 18.11.15 is a bugfix/maintenance release.
It includes 5 bugfixes.
Koha is continiously tested against the following configurations and as such these are the recommendations for deployment:
Additional notes:
[23290] XSLT system preferences allow administrators to exploit XML and XSLT vulnerabilities
This patchset refines the XSLT processing configuration such that we are more secure by disallowing the processing of external stylesheets by default and adding a configuration option to re-enable the functionality.
The Koha manual is maintained in Sphinx. The home page for Koha documentation is
As of the date of these release notes, only the English version of the Koha manual is available:
The Git repository for the Koha manual can be found at
Complete or near-complete translations of the OPAC and staff interface are available in this release for the following languages:
Partial translations are available for various other languages.
The Koha team welcomes additional translations; please see
For information about translating Koha, and join the koha-translate list to volunteer:
The most up-to-date translations can be found at:
The release team for Koha 18.11.15 is
Release Manager: Martin Renvoize
Release Manager assistants:
QA Manager: Katrin Fischer
QA Team:
Topic Experts:
Bug Wranglers:
Packaging Managers:
Documentation Managers:
Documentation Team:
Translation Managers:
Release Maintainers:
Release Maintainer mentors:
We thank the following individuals who contributed patches to Koha 18.11.15.
We thank the following libraries, companies, and other institutions who contributed patches to Koha 18.11.15
We also especially thank the following individuals who tested patches for Koha.
We regret any omissions. If a contributor has been inadvertently missed, please send a patch against these release notes to koha-patches@lists.koha-community.org.
The Koha project uses Git for version control. The current development version of Koha can be retrieved by checking out the master branch of:
The branch for this version of Koha and future bugfixes in this release line is 18.11.x.
Bug reports and feature requests can be filed at the Koha bug tracker at:
He rau ringa e oti ai. (Many hands finish the work)
Autogenerated release notes updated last on 23 Mar 2020 20:33:58.