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Kayako Classic 4.93.0 Release Notes

We are excited to announce the release of much awaited Kayako Classic version with PHP 7 support. It's supported with PHP 7.1 and above versions. PHP 7 series is known to perform over two times faster to its predecessors 5.5 and 5.6. We highly recommend taking advantage of it by upgrading to the latest Kayako Classic version 4.93.00.

We’ve listened carefully to your feedback, and thought hard about what businesses should be doing to improve our customers’ service along with a good triage practice.


  • PHP 7 is 2x fast as compared to PHP 5.6
  • Significant reduction in memory usage & consistent 64-bit support
  • Security fixes (including XSS vulnerability)
  • Allow staff users to reset their password from the login page
  • Improvements in staff reply Rich Text Editor with adding 'Table' support
  • Improvements in the ticket email parsing
  • Kayako Android mobile app fix

Improvements [Implemented]

[KAYAKOC-5038] - Customer can be a part of multiple organizations
[KAYAKOC-5097] - Ability to set the launch date while publishing news
[KAYAKOC-5105] - Ability to sort tickets based on custom fields in staff panel
[KAYAKOC-5108] - Schedule KQL reports should have a reference status for agents
[KAYAKOC-5158] - Staff should have the option to request for a new password

Defects [Fixed]

[KAYAKOC-2408|2410] - XSS vulnerabilities at Support Center
[KAYAKOC-3079] - Duplicate signatures in the email while creating a new ticket from the staff portal
[KAYAKOC-1071] - Support to send raw HTML/XML code in staff replies
[KAYAKOC-6842] - Reprocessing an email is not working and failing with the error
[KAYAKOC-6843] - Offline messages are throwing uncaught exceptions
[KAYAKOC-6846] -  Strip tags are not executable while parsing the emails in Kayako Classic
[KAYAKOC-6956] - Custom field of type "Linked Select" is Not displayed for End User unless it's editable by End-user, even if we update it by Staff
[KAYAKOC-6995] - User accounts are not getting merged while merging more than one organizations
[KAYAKOC-4886] - Language translation for ticket status does not work in auto close notification emails
[KAYAKOC-6254] - Unable to insert videos in Ticket replies
[KAYAKOC-6744] - 'Convert to HTML entities' option is not working for HTML handling in version 4.92.4 and above
[KAYAKOC-6775] - Unable to reply the tickets from Kayako Mobile app for Android
[KAYAKOC-3703] - Lag in agent collision after the recent update
[KAYAKOC-3947] - Kayako should parse emails having multiple Reply-To and From addresses
[KAYAKOC-6144] - Links are not clickable in ticket posts after upgrade to 4.92.4
[KAYAKOC-6288] - Setting 'Create multiple tickets for all email queues' is not working as intended
[KAYAKOC-6657] - At ticket submission page, IRS is throwing an error while opening KB article
[KAYAKOC-6424] - News article images are not visible at the agent’s welcome screen 

Important Note (for Download customers only): The third-party apps or customizations done in the product files might not compatible with the latest Kayako version. Please take the backup of customizations before upgrading your Kayako and re-do in the new files as required.

You can reach us at for further queries. Find out more about Kayako Classic:

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  1. Vinay Sharma

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