SharePoint MVP Serge Luca just posted an article with the title “Can you check the version of a SharePoint Online ? (or how can you know that your SharePoint Online moved to 2013…)“. In it, he shows how you can find out which server version your SharePoint Online tenant is running on, for example if you want to know whether SPO has been patched with the latest CU, or currently to see if you’re still running v14 (based on SharePoint 2010) or v15 (the brand new SharePoint 2013).
There are 2 other ways to find out the version number:
Open /_vti_pvt/service.cnf
The easiest way is to simply open https://yourtenant.sharepoint.com/_vti_pvt/service.cnf (or http:// if you’re using the P1 plan) , which will give you a result similar to the following:
vti_encoding:SR|utf8-nl
vti_extenderversion:SR|15.0.0.4433
As you can see, my own tenant is currently on 15.0.0.4433
Use Fiddler to see response header
The other way is to install and use Fiddler. If you run it (don’t forget to activate Decrypt HTTPS traffic in the Options) and open your SharePoint Online site, any response header will include the current version on the Headers tab, in the Miscellaneous section, under MicrosoftSharePointTeamServices:
@AndersRask my preview version was 15.0.0.4433 , didn’t check new tenant yet http://t.co/3GM2UbnnRo #office365 #sp2013
What’s my SharePoint Online version? #office365 | http://t.co/HJvZSaUp9E by @modery
What’s my SharePoint Online version? by @modery http://t.co/yI49RNuig5
From the archive: What’s my SharePoint Online version? http://t.co/SmLudK5jGz #office365 #sharepoint
@MLCarter1976 what about which version of SPO? http://t.co/ESdIFGHdNk @modery @bniaulin
@MrIsaac can you check for me what your SharePoint version is? Mine is 16.0.0.1212
on all tenants http://t.co/3GM2UbnWdY
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