Remove “An automated WordPress update has failed to complete” message
June 15th, 2009
This weekend I tried to autoupdate my blog to WordPress 2.8. This failed for some still unknown reason. Since this fail I was stuck with the following message in my admin page: “An automated WordPress update has failed to complete”.
I decided to update WordPress manually but the message kept in place. It turned out that I needed to remove a file called “.maintenance” from the website root directory. Finally the message disappeared 
Wow! Thanks, never noticed that file, mine too had failed I always do the update manually but gave this auto upgrade a try. That message was damn annoying so searched it up and here I am. Thanks again.
I received the same error when upgrading from WordPress 2.8 to 2.8.1. Thanks for the tip.
Thank you, that helped as well.
PS. you are No1 with that message on google
Nice info!
Somedays ago I try to upgrade LinkWorth’s plugin, but an error occur. Therefore, I try to upgrade it manulaly, but the message keep on the top of wp admin. So, I say thank you very much for that!