web
You’re offline. This is a read only version of the page.
close
Skip to main content
Community site session details

Community site session details

Session Id :
Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Kernel version and App...
Microsoft Dynamics AX (Archived)

Kernel version and Application version

(0) ShareShare
ReportReport
Posted on by @rp@n 30

Hi All,

1. What is the difference between Application version and kernel version?

2. We know that almost both versions are same but some times Application version and kernel version is different . If it's different then what is the impact in application level?

Can you please more shed on this.

Thanks!

-Arpan Sen

*This post is locked for comments

I have the same question (0)
  • Community Member Profile Picture
    Community Member on at
    RE: Kernel version and Application version in AX 2012

    The Dynamics AX Kernel is the component executing the X++ Application code. So the Kernel version is the version of the executable (Client, Server, Business Connectors) while the Application version is the version of the Dynamics AX “Business Logic” - the X++ Application code, Forms, Repots – everything in the AOT.

    You can check the current Application version in the Dynamics AX Client going to "Help - About Microsoft Dynamics AX."

    blogs.msdn.microsoft.com/.../faq-microsoft-dynamics-ax-kernel-hotfixes

  • @rp@n Profile Picture
    @rp@n 30 on at
    RE: Kernel version and Application version in AX 2012

    Thanks a lot Bruce,

    So, it's showing 3 different Kernel versions for each Client, Server and Business connector ?

    Thanks!

    -Arpan Sen

  • Suggested answer
    Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at
    RE: Kernel version and Application version in AX 2012

    On top of the above, the kernel version between the server and client-side executables must always match, since the communication protocol between versions could change.

    Application version just shows your major and minor version of the business logic, including patch level.

  • @rp@n Profile Picture
    @rp@n 30 on at
    RE: Kernel version and Application version in AX 2012

    Thanks Vilmos,

    You said that Kernel version for Server and Client must always match but kernel version for Business connector would be change.

    *** If suppose Kernel version for Server and Client side is not matched then
    How to resolve ?
    What is the reason of not match of Kernel version for Server and Client side ?
    What is the impact in application level happened in case of not matched of Kernel version for Server and Client side ?

    Can you please more shed on this.

    Thanks!

    -Arpan Sen

  • Suggested answer
    Lauras U Profile Picture
    Lauras U 955 on at
    RE: Kernel version and Application version

    There is a good FAQ resource:

    FAQ: Microsoft Dynamics AX Kernel Hotfixes

    Correct me if I am wrong, but question number 9 has some comments regarding your question:

    Q9: Is it supported to have different kernel builds for different AX components in the same environment?

    NO it is NOT supported. Customers should always apply the kernel fix to every AX component in the same environment.

    It’s possible that unexpected behaviour could result from a kernel mismatch. In the latest versions of AX, the AOS throws a warning message to the event logs (event 151) if a client tries to connect to it and has a different kernel version.

  • Verified answer
    Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at
    RE: Kernel version and Application version

    The reason for a not matched kernel is due to bad system administrators or poorly designed system infrastructure :)

    Having different versions will result in unexpected behavior, or application crash.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

News and Announcements

Join experts in person to explore low code and AI agents at the Power Platform Community Conference sponsored by Microsoft

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Abhilash Warrier – Community Spotlight

We are honored to recognize Abhilash Warrier as our Community Spotlight honoree for…

Congratulations to the September Top 10 Community Leaders!

These are the community rock stars!

Leaderboard > 🔒一 Microsoft Dynamics AX (Archived)

#1
Martin Tocauer Profile Picture

Martin Tocauer 4

#2
Community Member Profile Picture

Community Member 2

#2
Nayyar Siddiqi Profile Picture

Nayyar Siddiqi 2

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans