If I'm interpreting it correctly, you need to take the exams again after that length of time between certifications.
Here is the documentation which mentions that you can upgrade your 2012/2014 certification to 2016, but no reference to versions lower than SQL Server 2012:
https://www.microsoft.com/en-us/learning/mcsa-sql-2016-certification.aspx
How
to upgrade to the MCSA: SQL 2016 Database Development certification
You can upgrade the MCSA: SQL Server 2012/2014 certification to the MCSA: SQL 2016 Database Development certification through a single exam.
Thanks,
Sam Lester (MSFT)
https://blogs.msdn.microsoft.com/samlester/
Twitter - @SQLSamLester
This posting is provided "AS IS" with no warranties, and confers no rights. Please remember to click "Mark as Answer" and "Vote as Helpful" on posts that help you. This can be beneficial to other community members reading the thread.
