Joining a windows 2016 standard server to a windows 208r2 active directory

I want to join a windows 2016 standard server to a 2008R2 active directory.  All functional levels are at Windows 2008R2.

Are there known issues joining a 2016 standard server to AD 2008R2?
Are there any known operational issues?
Are there GPO compatibility issues?

I am in the processes of purchasing windows 2016 standard licenses.  How long will a windows 2016 run without activation?

Thanks
epmmisAsked:
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Jeremy WeisingerSenior Network Consultant / EngineerCommented:
No issues.
It will run 180 days without activation.
systechSenior Technical LeadCommented:
Hi,

Are you planning to run the 2016 as domain controller in the existing domain? if so, you need to prepare the domain (adprep /domainprep, adpre /schemaprep, adprep /forestprep)  schema preparation, forest preparation.
epmmisAuthor Commented:
This server will not be a domain controller.  
The server we are joining will be hosting a web site.

Upgrading the AD to 2016 is another project.
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systechSenior Technical LeadCommented:
No issues, you can join it directly.
Ganesamoorthy STech LeadCommented:

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epmmisAuthor Commented:
I rated Ganesamoorthy S extremely helpful because of the link provided in the answer.
The other two were also correct.
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