24 Jun 2021
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 20.05.13 can be downloaded from:
Installation instructions can be found at:
Koha 20.05.13 is a bugfix/maintenance release with security fixes.
It includes 1 security fixes, 3 enhancements, 11 bugfixes.
You can learn about the system components (like OS and database) needed for running Koha here: https://wiki.koha-community.org/wiki/System_requirements_and_recommendations
[26394] .mailmap needs to be updated
The .mailmap file is used to map author and committer names and email addresses to canonical real names and email addresses. It has been improved to reflect the current project's history. It helps to have a cleaner authors list and prevents duplicate http://git.koha-community.org/stats/koha-master/authors.html
[28200] Net::Netmask 1.9104-2 requires constructor change for backwards compatibility
The code library Koha uses for working with IP addresses has dropped support for abbreviated values in recent releases. This is to tighten up the default security of input value's and we have opted in Koha to follow this change through into our system preferences for the same reason.
WARNING:
koha_trusted_proxies
andILS-DI:AuthorizedIPs
are both affected. Please check that you are not using abbreviated IP forms for either of these cases. Example: "10.10" is much less explicit than "10.10.0.0/16" and should be avoided.
[28487] Overdue_notices does not fall back to default language
Previously overdue notices exclusively used the default language, but bug 26420 changed this to the opposite - to exclusively use the language chosen by the patron.
However, if there is no translation for the overdue notice for the language chosen by the patron then no message is sent.
This fixes this so that if there is no translation of the overdue notice for the language chosen by the patron, then the default language notice is used.
[28475] Searching all headings returns no results
Sponsored by Asociación Latinoamericana de Integración
The Koha manual is maintained in Sphinx. The home page for Koha documentation is
As of the date of these release notes, the Koha manual is available in the following languages:
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 20.05.13 is
Release Manager: Jonathan Druart
Release Manager assistants:
QA Manager: Katrin Fischer
QA Team:
Topic Experts:
Bug Wranglers:
Packaging Manager:
Documentation Manager: David Nind
Documentation Team:
Translation Managers:
Release Maintainers:
We thank the following libraries, companies, and other institutions who are known to have sponsored new features in Koha 20.05.13
We thank the following individuals who contributed patches to Koha 20.05.13
We thank the following libraries, companies, and other institutions who contributed patches to Koha 20.05.13
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-devel@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 20.05.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 24 Jun 2021 22:46:52.