Update to version 10

I installed Owncloud about 8 months ago and we've been happily using it, i installed it via Apt (debian) and it's at version 9. I can't see anything in sources.list relating to Owncloud but when i perform a apt-get update i can see in the list it's checking download.owncloud.org.

I really need to update to version 10 (due to a file not deleted error on clients) but apt is telling me it's already the latest version?

I'm not sure where to go from here.

EDIT: I remember now that i installed this via a tar.I've read about this updater app but can't find it anywhere and i'm not getting any notification even though it's enabled.

doing an apt-get update reveals it would like to update owncloud-files but it wants to remove owncloud.

/var/www/owncloud# apt-get install owncloud-files
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libatkmm-1.6-1 libcairomm-1.0-1 libglibmm-2.4-1c2a libgtkmm-2.4-1c2a
libpangomm-1.4-1 libparted-fs-resize0
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
The following packages will be upgraded:
1 upgraded, 0 newly installed, 1 to remove and 112 not upgraded.
Need to get 34.4 MB of archives.
After this operation, 15.8 MB of additional disk space will be used.
Do you want to continue? [Y/n]

You can update to 10 also via tar, it's much better

Do you have a link on how to do this, i could find instructions in the docs on how to perform it?