Cumulative Update 05 for Microsoft Dynamics NAV 2017 has been released

Cumulative Update 05 includes all application and platform hotfixes and regulatory features that have been released for Microsoft Dynamics NAV 2017.

The cumulative update is intended mainly for solutions that are experiencing the problems described in the Knowledge Base article linked to below. However, you are advised to always keep your solution updated with the latest cumulative update. If you are in doubt about whether this cumulative update addresses your specific problem, or if you want to confirm whether any special compatibility, installation, or download issues are associated with this cumulative update, support professionals in Customer Support Services are ready to help you. For more information, see

The cumulative update includes hotfixes that apply to all countries and hotfixes specific to the following local versions:

Where to find Cumulative Update 05

You can download the cumulative update from KB 4018437  – Cumulative Update 5 for Microsoft Dynamics NAV 2017.

You can press one of the countries in list above for a direct download or you can download the cumulative update from the Microsoft Download Center.

To learn more about other Cumulative Updates already released for Microsoft Dynamics NAV 2017 please see KB  3210255.


Before you install a cumulative update in a production environment, take the following precautions:

  1. Test the cumulative update in a non-production environment.
  2. Make a backup of the system or computer where the cumulative update is to be installed.
  3. This Cumulative Update will require a database upgrade.

Additional Information

For information about how to install the cumulative update, see How to Install a Microsoft Dynamics NAV 2017 Cumulative Update.

Comments (9)

  1. Johannes Sebastian Nielsen says:

    But no news on the memory leak problem? A 2017 service easily consumes 1GB RAM upfront. This becomes a problem when you maintain a large number (Cumulative updates) services for ISV release purposes…

    1. Same here too. Yesterday one service alone took itself 1.7 GB used by a single developer doing nothing special, causing extremely slow response times and page build-up. Due to this massive consumption, even the debugger would not start anymore.

    2. Lasse Jensen says:

      By default the NST compiles and loads the entire business application to prevent the sluggishness when the first user connects to the NST.
      Thats what is causing the memory usage.

      You can change this by setting the key “CompileBusinessApplicationAtStartup” to false in the CustomSettings.config

    3. Arjan Hollebrandse says:

      You have to disable the setting ‘enable debugging’ as well, otherwise the application objects will be compiled and loaded anyway.

  2. Dave Saman says:

    The CU bricked the ‘Create order’ functionality from a sales quote (BE version).

  3. NavAdmintool.ps1 on (at least DK, NL and DK) are the wrong version. Included is 10.0.15052.0, should be 10.0.16177.0

    1. Never mind.. Should not load ps1, but Microsoft.Dynamics.Nav.Management.dll for scripting…

  4. J Leite says:

    We noticed that installing CU3 in a O.S. previous to Windows Server 2016 (e.g. 2012) wasn’t that bad. When using Windows Server 2016 we also noticed that even with client services, SOAP, OData and NAS – all disabled in the NAV instance, the memory consumption tended to go dramatically up after starting the instance (zero users logged).

  5. I posted something 11 days ago (April 13th at 12:00) in reply to Arjan which is still not showing up here due to a line indicating ‘Your comment is awaiting moderation.’

Skip to main content