Changes from 6.16.3 (build 251215) to 6.16.4 (build 260113) January 13, 2026
-Fixed issue: single- and multiple-choice questions other field is not centered with its textbox (Patrick Teichmann)
-Fixed issue: in surveytaking, reduced whitespace between navbar and content (Patrick Teichmann)
-Fixed issue: logo not displayed in mobile view for surveys (#4630) (Patrick Teichmann)
-Fixed issue: Added .dotx as valid resource upload extension (Carsten Schmitz)
-Fixed issue: A11y for survey participants mass edit toggle buttons and modal close button (#4485) (Anblik Audit Team)
-Fixed issue: A11y for messagebox and focused links (#4507) (Anblik Audit Team)
-Fixed issue: A11y for central participants db blocklist settings and CSV import (#4531) (Anblik Audit Team)
-Fixed issue: A11y for Assessments page (#4575) (Anblik Audit Team)
-Fixed issue: A11y for Email templates settings (#4503) (Anblik Audit Team)
-Fixed issue #LX-7: Wrong semantic differential label alignment (#4629) (Gabriel Jenik)
-Fixed issue #20390: [security] Prevent XSS phishing by navigating browser tabs (#4652) (Denis Chenu)
-Fixed issue #20383: Expression manager javascript substr function does not work with a zero for start parameter (#4608) (Matthew)
-Fixed issue #20366: [security] TwoFactorAdminLogin should create secret with minimum 128 bits (#4639) (Denis Chenu)
#Updated translation: Turkish by bulent, kayazeren
#Updated translation: Slovak by jelen1
#Updated translation: Polish by elissa
#Updated translation: Polish (Informal) by elissa
#Updated translation: Finnish by Jmantysalo
#Updated translation: Dutch by BloomingPrime, Han
#Updated translation: Dutch (Informal) by BloomingPrime, Han
#Updated translation: Czech by jelen1
#Updated translation: Czech (Informal) by jelen1

Changes from 6.16.2 (build 251209) to 6.16.3 (build 251215) December 15, 2025
+New feature: Ability to include connection details in SMTP log (Carsten Schmitz)
-Fixed issue: Status of ComfortUpdate key not properly shown in top menu info box (Carsten Schmitz)
-Fixed issue: Show SMTP log only on errors was not working properly (#4607) (Carsten Schmitz)
-Fixed issue #AT-1880: Chart array numbers not showing and wrong output for array flexible (Stefan K)
-Fixed issue #20384: [security] XSS Vulnerability in question editor (#4617) (Denis Chenu)
#Updated translation: Slovak by jelen1
#Updated translation: Polish by elissa
#Updated translation: Polish (Informal) by elissa
#Updated translation: Japanese by d_inoue, nomoto
#Updated translation: Finnish by Jmantysalo
#Updated translation: Czech by jelen1, VBraun
#Updated translation: Czech (Informal) by jelen1, VBraun

Changes from 6.16.1 (build 251125) to 6.16.2 (build 251209) December 9, 2025
-Fixed issue: a11y missing aria-label for radio button and missing role for list in globalsettings (#4600) (Anblik Audit Team)
-Fixed issue: SMTP not being kept alive. When SMTP is kept alive the SMTP debug log only needs to show once (Carsten Schmitz)
-Fixed issue: Missing bracket for F or H array question type in statistics (#4590) (Stefan K)
-Fixed issue: Import survey button cutting off longer captions (Carsten Schmitz)
-Fixed issue: Cannot import very old survey achives because of missing startdate field (Carsten Schmitz)
-Fixed issue: A11y survey participants / send email invitation 1 fixes (#4491) (Anblik Audit Team)
-Fixed issue: A11y supply aria level for modal title in panel integration(#4584) (Anblik Audit Team)
-Fixed issue: A11y import and export resources buttons have incorrect tag assigned to them (#4589) (Anblik Audit Team)
-Fixed issue: A11y for survey participants export dialog (#4500) (Anblik Audit Team)
-Fixed issue: A11y for survey participants bounce settings (#4506) (Anblik Audit Team)
-Fixed issue: A11y for survey participants / send email invitation 2 (#4493) (Anblik Audit Team)
-Fixed issue: A11y for radio buttons in participant view (#4521) (Anblik Audit Team)
-Fixed issue: A11y for import resources modal as well as focus indicator for all modal close buttons (#4594) (Anblik Audit Team)
-Fixed issue: A11y for headers in edit email templates (#4502) (Anblik Audit Team)
-Fixed issue: A11y for add/edit participant form labels (#4547) (Anblik Audit Team)
-Fixed issue: A11y for add participants to CPDB (#4496) (Anblik Audit Team)
-Fixed issue: A11y for  survey participants pages CSV upload and manage attributes (#4497) (Anblik Audit Team)
-Fixed issue: A11y added heading tag for description in survey group form (#4596) (Anblik Audit Team)
-Fixed issue: A11y added correct role to assessment language tabs and fixed label for assesment name (#4583) (Anblik Audit Team)
-Fixed issue #20381: Easy to put an invalid email when installing the app (#4598) (Denis Chenu)
-Fixed issue #20375: Error - "Cannot access offset of type array on array" when invalid lang param is used (#4578) (Carsten Schmitz)
-Fixed issue #20370: Randomization of answer options in Array and Array Dual Scale (#4581) (Tim Willig)
-Fixed issue #20369: "Add user" button on list surveys view leads to general user management view instead of survey permissions view (#4566) (Richard)
-Fixed issue #20359: XML-RPC signature missmatch for set_participant_p… (#4550) (Chema Molins)
-Fixed issue #20150: Wrong statistics result on multiple choice question type (#4429) (Denis Chenu)
-Fixed issue #19859: Cannot import very old survey achives because of empty startdate field (Carsten Schmitz)
-Fixed issue #14762: No accessible title or label for progressbar (#4551) (Carsten Schmitz)
#Updated translation: Swahili by FredaM
#Updated translation: Slovak by jelen1
#Updated translation: Polish by elissa
#Updated translation: Polish (Informal) by elissa
#Updated translation: Japanese by d_inoue
#Updated translation: Georgian by Tchumbura
#Updated translation: French (France) by arnaud21, b00z00, DenisChenu, frederic93190, jayce, nathalieH971, riqcles
#Updated translation: Finnish by Jmantysalo
#Updated translation: Czech by jelen1
#Updated translation: Czech (Informal) by jelen1, VBraun

Changes from  (build ssue) to 6.16.1 (build 251125) November 25, 2025
-Fixed issue: Warning for invalid DateTime object on first opening of administration if debug mode is active (Carsten Schmitz)
-Fixed issue: Broken token session (#4570) (lajosarpad)
-Fixed issue: Access mode dropdown button works after activation (#4560) (lajosarpad)
-Fixed issue #20365: Getting an error when trying to upgrade to 6.16.0+251120 using Postgres (Carsten Schmitz)
-Fixed issue #20361: Bootstrap dropdown selected hover style issue (#4556) (Tõnis Ormisson)
-Fixed issue #20355: Not able to upgrade to newer version when running on MSSQL DBMS (lajosarpad)
-Fixed issue #15355: TCPDF doesn't remove temporary files used for images (Carsten Schmitz)

Changes from 6.15.24 (build 251117) to 6.16.0 (build 251120) November 20, 2025
+New feature #20341: Added full-screen question script editor (#4515) (Tõnis Ormisson)
+New feature #AT-1415: introducing new option Random A-Z/Z-A for answer options/subquestion order setting (#4466)
+New feature #LE-86: include last modified date in survey list boxes (#4463)
-Fixed issue: Expression manager substr() function crashing out if a non-integer text is given for start/length (Carsten Schmitz)
-Fixed issue #LE-429: Survey detail performance is enhanced with a caching mechanism (lajosarpad)
-Fixed issue: Supporting the timestamp value consistently (Ahmed Abd El-Azeem)
-Fixed issue #LE-285: ensure tokensTable creation upon allowRegister toggle (#4372) (haythem chibani)
-Fixed issue #LE-257: Ensured that participants can be restored even if we have an empty participants table (#4338) (lajosarpad)
-Fixed issue #CT-1301: Ensured that the survey name and the expiry show up dynamically (#4462) (lajosarpad)
-Fixed issue #AT-1746: Show correct active item in new side menu (#4504) (Tim Willig)
-Fixed issue #20279: Error page didn't get theme option (#4469) (Denis Chenu)
-Fixed issue: open and closed access modes not being set without deactivation
#Updated translation: Slovak by jelen1
#Updated translation: Polish by elissa
#Updated translation: Polish (Informal) by elissa
#Updated translation: Finnish by Jmantysalo
#Updated translation: Czech by jelen1
#Updated translation: Czech (Informal) by jelen1
#Updated translation content from new editor in editorTranslations.php