Discussed here.

The Memcache is now disconnected!

Files can not be submitted via ajax. You need to use a library that fakes ajax submission. You can start by exploring jquery.form.js that is bundled with Elgg.

Thanks for the reply. I'll try to implement it. thought maybe someone already done similar implementation and can share.

I implemented it using iframe and ajax.

Tx,

Shachar

Ok, I have the same error as the OP:

[Tue May 01 11:17:28 2012] [error] [client xxx.xxx.xxx.xxx] Exception #1335885448: exception 'DatabaseException' with message 'Unknown column 'ip_address' in 'field list'\n\n QUERY: INSERT DELAYED into elgg_system_log\n\t\t\t\t(object_id, object_class, object_type, object_subtype, event,\n\t\t\t\tperformed_by_guid, owner_guid, access_id, enabled, time_created, ip_address)\n\t\t\tVALUES\n\t\t\t\t('2281','ElggMetadata','metadata', 'admin_notice_id', 'create',\n\t\t\t\t50, 50, 0, 'yes', '1335885448', 'xxx.xxx.xxx.xxx')' in /opt/elgg/engine/lib/database.php:261\nStack trace:\n#0

Thanks for the details. I've added a ticket describing the problem here: http://trac.elgg.org/ticket/4487. The fix will be included in the next version of Elgg.

When I add the fix, I'll ping this thread so you can patch your copy to get up and running. If you are upgrading directly from 1.8.3 to 1.8.4 you can delete the follow file and upgrade.php should work:

engine/lib/upgrades/2012041800-1.8.3-dont_filter_passwords-c0ca4a18b38ae2bc.php

This upgrade adds an admin notice about passwords. The notice says:

Password handling has been updated to be more secure and flexible. This change may prevent a small number of users from logging in with their existing passwords. If a user is unable to log in, please advise him or her to reset their password, or reset it as an admin user.

I was unable to duplicate this on an upgrade, but found a possible reason and committed a fix. For anyone having this problem, please post a stack trace (look in your error logs) to the ticket above. Thanks.