Exchange CU Update Jump

[ITGURU]

I've had an exchange 2013 server running happily since install on Cumulative update 8- no issues and dont touch it.

 

In preparation for migrating to exchange 2016 i need to up the CU number.

I notice on the website I can now only download CU 17 and 18.

 

Should there be any issues with applying the latest update 18 jumping from CU 8?

 

Is a Windows Server Backup sufficient if the update fails? If it does, could i just restore the whole image (C and Data Drive) prior to applying the update and everything be working as before or does it have to be a clean install with theSetup /m:RecoverServer then restore just the database?

 

Thanks

Edited November 30, 2017 by ITGURU

[computer_expert]

You'll need to apply the schema updates to AD according to this page: https://technet.microsoft.com/en-us/library/bb738144(v=exchg.150).aspx

[ITGURU]

You'll need to apply the schema updates to AD according to this page: https://technet.microsoft.com/en-us/library/bb738144(v=exchg.150).aspx

 

Thanks, however just realised a typo - i'm currently on CU8 not 4.