04 Dec 2025
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 25.05.06 can be downloaded from:
Installation instructions can be found at:
Koha 25.05.06 is a bugfix/maintenance release.
It includes 58 bugfixes, 2 of them are security fixes.
System requirements
You can learn about the system components (like OS and database) needed for running Koha on the community wiki.
35830 Add separate permission for Merging Patrons
Sponsored by Cape Libraries Automated Materials Sharing
Adds a visible “Sort results by” label above the sort dropdown in OPAC search results to improve accessibility and clarity.
This fixes editing EDI account port numbers in Koha 25.05.x. When editing the port numbers for an account (Administration > Acquisition parameters > EDI accounts), the changes were not saved.
This updates the template used when creating Koha instances - it changes the plugin repository details for Open Fifth (previously PTFS-Europe), so that you can search and install plugins using the staff interface.
To update existing Koha instances (where uploading and installing plugins from Git repositories is enabled) change the PTFS-Europe details to Open Fifth in the /etc/koha/sites/
/koha-conf.xml:
Open Fifth openfifth github
This fixes the display of the 'Export' column on a patron's check out and details sections when ExportCircHistory is enabled and disabled. Because of a regression (caused by DataTable's saveState, bug 33484), the column was not correctly shown unless you cleared the cache/local storage: - If ExportCircHistory was set to 'Show', it is shown the first time. - If ExportCircHistory is then set to 'Don't show', the export column continues to show until you clear the browser cache/local storage.
38446 Permission error for additional fields
Sponsored by Karlsruhe Institute of Technology (KIT)
39985 items.onloan field is not updated when an item is recalled
Sponsored by Auckland University of Technology
Restore the ability to define a default sort order for the holdings table at the OPAC. It replaces the system preference "OPACHoldingsDefaultSortField" that had been broken for a while. Note that its value is not migrated.
Example: for the SUGGEST_FORMAT authorized value category, the value in 'Description (OPAC)' is now shown in the dropdown list for the item type field on the purchase suggestion form in the OPAC.
This fixes the error 500 "malformed JSON string" message when something goes wrong searching for plugins using the plugin search in the staff interface (for example, when there is an invalid repository in the Koha configuration).
This fixes the 'Delete' button when previewing the SQL for a saved report - there is now a space between the trash can icon and Delete.
This fixes a regression when printing dialogue boxes in certain Chromium-based browsers, for example, when printing the cashup summary for the point of sale system. Sometimes the print dialog failed to open, and instead you were faced with a flash of white before the new tab automatically closed and didn't print.
blank" instead of "blank", and opens in a new tab for external links, and the same browser window for pop-up windows (modals).This fixes the HTML target attribute for some system preference links that open a pop-up window or external link. The link attribute now uses "
This fixes the second page of the new serial subscription form - it adds missing "Required" labels next to two mandatory fields ('Frequency' and 'Subscription start date').
40720 Misleading title attribute "Remove all items" in Select2 fields
Improvement: Updated Select2 title text for clarity
This patch updates the Select2 initialization script to improve accessibility and clarity. The title attribute on the “X” control (used to clear selections in Select2 dropdowns) now reads “Clear selections” instead of “Clear items,” eliminating ambiguity.
Sponsored by Athens County Public Libraries
41207 Permission description string does match permission name
Sponsored by Cape Libraries Automated Materials Sharing
This patch fixes a problem in the batch patron modification tool where extended patron attributes were sorting based on the code, instead of the description.
The Koha manual is maintained in Sphinx. The home page for Koha documentation is
Koha Documentation 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 25.05.06 is
Release Manager: Lucas Gass
QA Manager: Martin Renvoize
QA Team:
Documentation Manager: David Nind
Documentation Team:
Translation Manager: Jonathan Druart
Wiki curators:
Release Maintainers:
Release Maintainer assistants:
We thank the following libraries, companies, and other institutions who are known to have sponsored new features in Koha 25.05.06
We thank the following individuals who contributed patches to Koha 25.05.06
We thank the following libraries, companies, and other institutions who contributed patches to Koha 25.05.06
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 main branch of:
The branch for this version of Koha and future bugfixes in this release line is 25.05.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 04 Dec 2025 09:22:01.