WordPress MU is a multi user or multi blog version of WordPress that is used to run sites like WordPress.com.
WordPress MU 2.8.3 is a security and bugfix release based on the fixes in WordPress 2.8.3 but also contains many other changes.
It’s a required upgrade for security reasons but also fixes a number of annoying bugs, especially #1067 and #1076.
Unfortunately the automatic upgrader in MU 2.8.2 is broken but it’s simple to fix:
- Before upgrading, edit wp-admin/includes/class-wp-upgrader.php and look for line 697.
if ( !$wp_filesystem->copy($working_dir . ‘/wordpress/wp-admin/includes/update-core.php’, $wp_dir . ‘wp-admin/includes/update-core.php’, true) ) {
- See the “/wordpress/wp-admin/includes” bit? Change that to “/wordpress-mu/wp-admin/includes”:
if ( !$wp_filesystem->copy($working_dir . ‘/wordpress-mu/wp-admin/includes/update-core.php’, $wp_dir . ‘wp-admin/includes/update-core.php’, true) ) {
- Save the file and auto upgrade. I upgraded this afternoon without a hitch after making that change. It’s fixed in 2.8.3 so it’s the last time you’ll have to do it.
Do not copy and paste the line above as WordPress will have changed the quotes to “smart quotes”. Actually go in and type “-mu” after “wordpress”. No copy and pasting please!
If auto upgrading still doesn’t work, don’t sweat it. Download the new release from the download page and upgrade manually, overwriting your current install with the new files.
Good stuff, thanks Donncha.
Looking forward to next week’s 2.8.4 🙂
Not too far off of what I was thinking myself. 😉 They need to make this an aptitude package so I can just upgrade it through cron.
Thank you, sir! That promptly ended my hour long mission trying to figure out it kept failing. 🙂
In your blog, why not wrap the above code in <code> tags? That will stop it from doing smart quotes.
Glad i checked your blog before I hit the upgrade button 🙂
Thanks as always sir, worked like a charm:)
Thanks for the posting the wp-class-upgrader.php fix!
Thanks a bunch. I was able to upgrade my wordpress MU with no sweat.
Great tip. Saved me from lots of trouble. Thanks.
Thank you 🙂 now waiting 2.8.4
Great help! Thanks for that.
Thanks for the helpful info! Had no idea why it wasn’t unpacking. 😉 That little fix works.
Thank you very much Donncha.
little reminder to all code pasters: always remember to check code snippets you are pasting from a website into an editor for tick marks, inverted commas, single quotation marks – because ’ is not ‘ , even when it looks like it on this page.
besides that: the update went through fine, so i must acknowledge that this was a really big mu-ing step!
I use subversion to upgrade, but the repository at http://svn.automattic.com/wordpress-mu/ doesn’t contain a tag for 2.8.3 now… can you create one or let us know which revision number to use?
Angelo, the branch at http://svn.automattic.com/wordpress-mu/branches/2.8/ (use
svn switchto switch to the branch) will be equivalent for now.I don’t want to end up with the latest commit on 2.8, I just want releases. Does stuff get commited to the branches in between releases?
Ok, it looks like 2.8.3 is revision 1929 in trac, and looks like the branch isn’t updated yet… so I guess I’ll do that. But I’ll have to remember not to do any updates until the next release.
I just tagged 2.8.3 so you can update from that if you like.
Yay, thanks!
Thanks for the tip 🙂
Hi.. thanks for the tip.. worked perfectly :)Saved me trying to figure out which files to upload manually.. thanks!
Hi,
thanks for the workaround. I just tried it, but I got a warning message saying, that I am trying to download the en-us-Version which doesn’t match with my language version.
So what to do?
Kind Regards
Mark
Sorry for the newbie question, but I would not see this problem if I was upgrading directly from a version prior to 2.8.2 would I? I am still running 2.7.1
Also, is 2.8.4 expected soon? If so, I might just wait a bit and upgrade directly to that.
Thanks!
Just found this today:
http://wordpress.org/development/2009/08/2-8-4-security-release/
So we are right now running from update to update … 😉
Perfect—worked a treat. Thanks for the instructions.
Thanks a lot Donncha!
Thx for the help now to update 24 MU Sites
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