MS Project version numbering

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    • #5205
      Avatar photoCommunity

      I have Project Pro 2010 installed. The version number is: (14.0.4751.1000) MSO (14.0.6106.5005). Another person in the organization has (14.0.4751.1000) MSO (14.0.6112.5000).

      Does anyone know how to interpret these numbers? Also, what is the current version of MS Proejct Pro available in general distribution?


    • #6905
      Avatar photoCommunity


      The version numbers depend upon the Cumulative Updates that you have installed for Project Pro. Here is a link that might help you interpret these numbers:

      2003, 2007 and 2010 Project and Project Server Versions

    • #6907

      Hello Ken,

      Pls see the article here at:

      The version number for SP1 of Project 2010 is listed as 14.0.6023.1000 in that article. The article also explains the methods to determine the version number.

      Version number is a four-part string with the format where parts represent major version, minor version, build number and revision number respectively.  Build number is also called build version or update version which is 6023 in SP1.

      Pls note that the version string of the product may also contain information on Service Pack applied as SPnumber.

      We can decide whether the product that we currently use has been updated if we display the version string of the product, using the methods described in the article. On the other hand, that may not be true all the time; please see “Important” note on the bottom of the article:

      <Not all updates change the version number that is listed in the About Microsoft Program_Name dialog box. Therefore, you must verify the properties for the program’s executable file.>

      Additionally, you may visit the following articles on the topic:

      You need to visit Update center here at to see the latest updates available. The KB (knowledge base) support articles provide version number information related to the updates listed. And also the kb articles are labeled with a 7-digit number in the format of KB xxxxxxx. I do not know the coding scheme used but the number of a new update released is always greater than that of the preceeding update based on my observation. So let’s check the Update Center now:

      “June 2012 CU (KB 2712235)” is the latest cumulative update listed on the Update Center (as of the date of my post). Next, I click on the link provided for KB article and review the content to see the version string. I see the number “14.0.6123.5000” in the article. I conclude that (pls recall the Important note mentioned above) I am supposed to see 14.0.6123.5000 in the product version string right after applying the update.

      Pls check this article for a definition of Hotfix, Cumulative Update, Service Pack:

      A final note: Pls always check the “APPLIES TO” section in the support article for a list of the products that the update can be applied to. e.g. SP1 update ( can be applied to both Standard and Professional editions.


      Ismet Kocaman


    • #10677
      Michelle Moulliet

      Hi Ismet,

      Your response was very thorough to this, as usual! 🙂  Since I just switched to Project 2010 I have a couple of questions that you might know the answer to.

      I thought that since Microsoft releases routine cumulative updates, that both the MSO version number and the Project version number should now be identical.  Is that your understanding as well?

      Additionally, is Microsoft only releasing updates for Project Server or are they continuing to release 1 update for the server and 1 update for the desktop?  I haven’t seen many CUs for Project, only for Project Server, so that is the impetus for my question.

      I’m thinking something along the lines of Microsoft Office Project 2010 14.0.6134.5000 SP1 MSO 14.0.6134.5000 would be the latest build?

      Thanks in advance,



    • #10678
      Michelle Moulliet
    • #10679

      Hello Michelle,

      I hope I did not misunderstand your question. IMO, MSO version string and Project’s version string (I mean client) cannot match since products go through different update paths. Even if they do, that would be a coincedence. Pls note that this is my conclusion and I do not know the internals of the product versioning system. Pls check the following article for the frequency of the updates: Description of the standard terminology that is used to describe Microsoft software updates Also see Brian Smith’s note in the blog article mentioned above: “In most of the KB articles the term hotfix is used in place of Cumulative Update.  They tend to be interchangeable terms – a Cumulative Update is just a hotfix built to a schedule.”

      Update Center website (  lists the latest updates and an update history (pls see the section Updates Released in 2011, 2012, and 2013) and contains a link to the Product Support Lifecycle page ( and Considering the lifecycle information, I would expect other SPs and CUs for Project 2010 client.

      Kind Regards.


    • #11672
    • #490655

      You need to check the official documentation.

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