5.3.4 (stable)

Release 5.3.4 has been published on April 25, 2018
Instructions for updating ILIAS can be found in section 3 of the general installation instructions. For major updates (e.g. 4.4.x -> 5.0.x) the safest proceeding is, to upgrade a copy of your productive system first and test whether everything works ok.
If you use a customized skin/style, please change the skin settings for root user and default of installation to ‘delos‘ before upgrading from a 4.x version to 5.3.x. Otherwise you may not login any more due to templates changes in former versions.
ILIAS is free, open source software and published under the GNU General Public License (GPL).

Format: .zip
Download (
182 MB, 2018-04-25
md5: cf4769caad0004d9626a27937d3278dd

Format: .tar.gz
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169 MB, 2018-04-25
md5: c78b54290f427a7998176100cad85fe4

Security Fixes:

Fixed Bugs

The following bugs reported in Mantis have been resolved:

* #0022810: [File] Dateiendung ".uvproj" wird bei Upload zu "sec" geändert (fschmid)
* #0022651: 0022651: [Exercise] Sample solution cron job notification does not take care about the assignment grace period. (jlopez)
* #0022769: 0022769: [Wiki] Wiki-Statitics failed in PostgreSQL (akill)
* #0022772: 0022772: [Wiki] Contributer-List failed in Wiki (PostgreSQL-Error) (akill)
* #0022589: 0022589: [Organisational Units] Whopps due to still existing ou assignment data after deleting user accounts (bseglias)
* #0022928: 0022928: [Bibliographic List Item] Crash when trying to access Administration » Literaturliste (bseglias)
* #0022930: 0022930: [Weblink] Weblink offers option to link pages to learning modules but not to wiki pages (smeyer)
* #0022849: 0022849: [Data Collection] creating new DataCollection-Object fails in PostgreSQL (SQL-Error) (fschmid)
* #0022788: 0022788: [Data Collection] Asynchron xslx export does not work in data collection (bseglias)
* #0022236: 0022236: [Survey] Kompetenzergebnisse: überschüssige Information (akill)
* #0022524: 0022524: [Data Collection] ILIAS does not show me all possible link targets (ttruffer)
* #0022893: 0022893: [File] + in filename leads to blank page on download (bseglias)
* #0022750: 0022750: [File] Repository File Object: Could not download files with a "+" character in the filename (bseglias)
* #0022898: 0022898: [File] RAR-Dateien werden beim Upload umbenannt (bseglias)
* #0022811: 0022811: [File] Dateiendung ".gan" wird bei Upload zu ".sec" geändert (bseglias)
* #0022822: 0022822: [File] Dateiendung ".a51" wird bei Upload zu ".sec" geändert bzw ergänzt (bseglias)
* #0022774: 0022774: [File] File extension settings inconsistent (fschmid)
* #0022837: 0022837: [File] .ics should be in the allowed extensions in Services/Utilities/classes/class.ilFileUtils.php (bseglias)
* #0022787: 0022787: [File] File suffix "mw" is changed to "sec" on Upload (fschmid)
* #0022827: 0022827: [File] DateiTypen @HSB die durch .sec ersetzt wurden (bseglias)
* #0022816: 0022816: [File] .mph (and others?) suddenly blocked with 5.3, replacement to sec does NOT work (fschmid)
* #0022823: 0022823: [File] Sicherheitseinstellungen unwirksam (bseglias)
* #0022821: 0022821: [File] File: Different behaviour for unsupported (not incl. in whiteliste) files when creating a new file object (bseglias)
* #0022836: 0022836: [File] File Upload Suffix Replacement completely broken? (fschmid)
* #0022831: 0022831: [Exercise] Exercise crashes on upload (fschmid)
* #0022846: 0022846: [PDF] Please add unit and byline to Admin > PDF > Configure Renderer > Javascript Delay (gvollbach)
* #0022833: 0022833: [Test & Assessment] Random Tests: Missing group (grp) in repository browser when selecting question pools for selection rules (bheyser)