[imp] Broken Horde when I update via yum

[David Yossef Malka]

Hi

I have Horde 5.2.12, and it's been running well for a couple of years.
It's on a Centos 6.8 VM, and the other day, during a moment of inattention,
I ran yum update and didn't notice that there was a bunch of 'horde'
elements in there.

As a result, although the Horde still works flawlessly on the web
interface, and I can still send e-mails from my Mac client inside my LAN
(logically, since that's hitting sendmail and not the Horde!), I can't get
any other device to work with ActiveSync.

When I try to add an 'Exchange' account on a mobile device, I get:

***********
XXX.XXX.XXX.XXX - myaddress at mydomain.com [07/Nov/2016:08:00:14 +0000] "POST
/Microsoft-Server-ActiveSync?User=myaddress at mydomain.com&DeviceId=JKK154fd58df4f5df4df4QD5DO&DeviceType=iPhone&Cmd=Sync
HTTP/1.1" 200 76

==> /var/log/httpd/ssl_request_log <==
[07/Nov/2016:08:00:14 +0000] XXX.XXX.XXX.XXX TLSv1.2
ECDHE-RSA-AES256-GCM-SHA384 "POST /Microsoft-Server-ActiveSync?User=
myaddress at mydomain.com&DeviceId=JKK154fd58df4f5df4df4QD5DO&DeviceType=iPhone&Cmd=Sync
HTTP/1.1" 76

==> /var/log/httpd/ssl_error_log <==
[Mon Nov 07 08:00:14 2016] [error] [client XXX.XXX.XXX.XXX] PHP Fatal
error:  Undefined class constant 'VERSION_SIXTEEN' in
/usr/share/pear/Horde/Core/ActiveSync/Driver.php on line 1469

==> /var/log/httpd/ssl_access_log <==
XXX.XXX.XXX.XXX - myaddress at mydomain.com [07/Nov/2016:08:00:14 +0000] "POST
/Microsoft-Server-ActiveSync?User=myaddress at mydomain.com&DeviceId=JKK154fd58df4f5df4df4QD5DO&DeviceType=iPhone&Cmd=Sync
HTTP/1.1" 500 1359

==> /var/log/httpd/ssl_request_log <==

Message from syslogd at www at Nov  7 08:00:16 ...
 HORDE: Undefined class constant 'VERSION_SIXTEEN' [pid 24013 on line 1469
of "/usr/share/pear/Horde/Core/ActiveSync/Driver.php"]
^C
[root at www ~]#
Message from syslogd at www at Nov  7 08:00:17 ...
 HORDE: Undefined class constant 'VERSION_SIXTEEN' [pid 24006 on line 1469
of "/usr/share/pear/Horde/Core/ActiveSync/Driver.php"]
^C
[root at www ~]# ^C
[root at www ~]# ^C
[root at www ~]#
Message from syslogd at www at Nov  7 08:00:18 ...
 HORDE: Undefined class constant 'VERSION_SIXTEEN' [pid 24323 on line 1469
of "/usr/share/pear/Horde/Core/ActiveSync/Driver.php"]

Message from syslogd at www at Nov  7 08:00:19 ...
 HORDE: Undefined class constant 'VERSION_SIXTEEN' [pid 24070 on line 1469
of "/usr/share/pear/Horde/Core/ActiveSync/Driver.php"]

***********

Now, if I look in the configuration  of the Horde, I see that there are
quite a few modules that need updating.  Is it safe to do so, and would it
fix this issue?

Thank you.