NEW Zimbra Patches: 8.8.12 Patch 3 + 8.7.11 Patch 12

Hello Zimbra Friends, Customers & Partners,

Zimbra 8.8.12 “Isaac Newton” Patch 3 and 8.7.11 Patch 12 are here.

Zimbra 8.8.12 Patch 3 and 8.7.11 Patch 12 were updated to include a small fix on 14 June. The Patches now include a fix for “inline attachment shows as an attachment in compose window”. If you applied these Patches before 14 June, please re-apply following the instructions on the respective Patch release notes.

Zimbra 8.8.12 “Isaac Newton” Patch 3

Patch 3 is here for the Zimbra 8.8.12 “Isaac Newton” GA release, and it includes fixes as listed in the release notes.

Fixed Issues

OWASP based HTML sanitization for protecting the web application against XSS, which replaces the current Nekohtml based HTML sanitizer. The new OWASP fixes the performance issues seen while rendering certain mimes on the web client.
Backup and restore command line utility, `zmplayredo`, has been optimized to work with JDK 11.
Addressed below issues that occurred with some IMAP clients:

  • IMAP clients that require the user to subscribe to folders did not offer folders in shared mailboxes.
  • IMAP clients did not automatically offer folders in shared mailboxes.
A new fix prevents the window from becoming unresponsive when using ‘compose in new window’ and print options.

Patch Installation

For Zimbra 8.8.8 and above, you don’t need to download any patch builds. The patch packages can be installed using Linux package management commands. Please refer to the release notes for Zimbra 8.8.12 Patch 3 installation on Red Hat and Ubuntu platforms.

Note: Installing a zimbra-patch package only updates the Zimbra core packages.

Zimbra 8.7.11 Patch 12

Patch 12 is here for the Zimbra 8.7.11 GA release, and it includes fixes as listed in the release notes.

Fixed Issues

Attendee can now receive forwarded meeting requests from EWS users.
Shared calendar sync issues on Mac Mail and Outlook on Mac (when a shared calendar has thousands of meeting events) is fixed.
Shared folder in multi node environment now syncs all items with Mac Calendar client and Outlook on Mac.
Emojis display correctly in HTML emails.
OWASP based HTML sanitization for protecting the web application against XSS, which replaces the current Nekohtml based HTML sanitizer. The new OWASP fixes the performance issues seen while rendering certain mimes on the web client.
Addressed below issues that occurred with some IMAP clients:

  • IMAP clients that require the user to subscribe to folders did not offer folders in shared mailboxes.
  • IMAP clients did not automatically offer folders in shared mailboxes.
A new fix prevents the window from becoming unresponsive when using ‘compose in new window’ and print options.

Patch Installation

Download the patch for Network Edition and Open Source Edition.

Please refer to the release notes for 8.7.11 Patch 12 installation.
Note: This patch should be installed only on all mailbox nodes running in your environment.

Thank you,
Your Zimbra Team

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