SHA-1 and SHA-2 for Exchange

just heard industry is retiring certificates with SHA1 and replacing with SHA2. is that true and how does that affect us? especially exchange server?
DukewillNukemAsked:
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Simon Butler (Sembee)Connect With a Mentor ConsultantCommented:
If you are doing a new certificate request then you have to choose the second type. Otherwise any current certificates will work fine.

Simon.
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DukewillNukemAuthor Commented:
how about a renewal?
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Simon Butler (Sembee)ConsultantCommented:
A renewal is a new certificate, so will need to use the newer standard.

Simon.
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