in which order to install cu and language packs on different servers?

Question

I am using the script from this blog to update SharePoint 2013 environment on web and app server.

The environment contains a language pack already, Dutch. The script is installing the CUs at this moment.

Do I need to install language packs again after I have installed the CU of December 2017 or do I leave it as is?

Please, it is urgent.

Answer 1

As a short answer: No need to reinstall the Language Pack again after installing the CU,

Note: After installing the CU, you will need to run the SharePoint Configuration wizard on all Sharepoint servers within the farm started from the SharePoint server that hosts the central administration to apply these updates!

Answer 2

You dont to install the language pack again if you are applying the CU to the farm. CU include the fix for language packs as well.

After installing the CU simply run the COnfig wizard on all servers in the farm one by one.

Only time you need to apply the separate update for language pack is the Service pack.