Security Update 6.x-1.10 breaks Panels 6.x-3.10

I got the same issue with ctools-6.x-1.10.

I tried to update three different projects, from small (approximately 100 nodes) to large (approximately 5000 nodes).

In all of those projects, I am currently using ctools-6.x-1.9 together with panels-6.x-3.10 running on drupal-6.26.

A downgrade to ctools-6.x-1.9 doesn't work. To get my projects online again, I had to import a backup of my mysql databases, that were created before the update.

Hello I would like to upgrade to 6.x-1.10 (since the available updates page is giving me a big scary "Security Update Required!" message on this module.

Subscribing....

I will also have this conflict on two client sites- making sure I don't miss anything...

I did a test run of CTools update to 6.x-1.10 on dev copy of site and Panels broke (Panels content disappeared)! In fact lots of stuff is acting strangely on site - missing content, access denied messages on non-protected pages. Note: The site has been having some weird memory problems so that may be a clue.

Will revert back to earlier version, but of course still get the "Security Update Required!" message.

Could this be related to this comment above function ctools_api_version in ctools.module?

 * Please note that the version is a string, not an floating point number.
 * This will matter once CTools reaches version 1.10.

I noticed that the 1.10 update however does NOT update the CTOOLS_API_VERSION constant.

I think it is related to the php version also. I have a life site with php 5.3.3, ctools 6.x-1.10 and panels 6.x-3.10, everything works. On another site with php 5.4.6 and the above versions of ctools and panels I see the symptoms being reported in this report, panels have dissappeared after having updated ctools.

Hm. I wonder if that means there is something broken with version_compare and that version of PHP. :(

If there is any way I can help debug the possible php version problem, I would like to do it.

The only way to really do this is to write a small test script that manually runs a version_compare on the numbers that CTools provides and test it on different PHP versions to see if the results are different. That means having environments with multiple PHP versions. The test script should be pretty easy to write.

Sorry to having taken some time to come back to this. And also sorry but I don't know how to create or run this simple script. I have the two sites with the two different PHP versions and could run easily the script. or write it, but I don't know where to look (is it a php script?, how I get Ctools to tell me the numbers it provides?)

On the other hand on the pages where the panels are failing the following php message appears repeatedly (between 20 to 30 lines of the same error):

warning: preg_match(): Compilation failed: disallowed Unicode code point (>= 0xd800 && <= 0xdfff) at offset 1811 in /data/html/sites/all/modules/ctools/includes/cleanstring.inc on line 157.

I just noticed that panels are rendered correctly after updating to the dev version of Panels. So my setup is now:

Php 5.4.6
Drupal 6.26 (about to install 6.28)
Ctools 6.1.10
Panels 6.x-3.10+3-dev (2012-Abril-25)

Hi I can confirm that updating to latest dev version of Panels (6.x-3.10+3-dev) makes it possible to update to Ctools 6.1.10 without breaking old Panels.

I am using Drupal 6.28 and PHP 5.3.5

So this issue could be closed after #1774796: Plan for Panels v6.x-3.11 release (PHP 5.4 fix)

Drupal 6 is no longer supported, closing.