Exchange 2013 CU update

Question

Hello,

last CU update for Exchange 2013 is realesed in 2019,CU23.
https://learn.microsoft.com/en-us/exchange/updates-for-exchange-2013-exchange-2013-help?redirectedfrom=MSDN
Does this mean that no more cumulative updates will be realesed for Exchange 2013?

If there is no CU for Exchange 2013 how can I patch Exchange 2013?
What is difference between mainstream and extended support for Exchange?

Answer 1

@fsdg

The article that you provided only contains CU which has released rather than contained the CU to be released.

Most products(Such as Exchange 2016, 2019) "Mainstream Support End Date" is generally 5 years after the “Products Released” date. It will supported by the end of "Extended Support End Date".

You can compare it with Exchange 2010 SP3, the "Mainstream Support End Date" is "1/13/2015", the "Extended Support End Date" is "10/13/2020". The lasted version for Exchange 2010 SP3 is "Update Rollup 30 for Exchange Server 2010 SP3" which released in "February 11, 2020"

You can follow the "Exchange Team Blog", if a new CU is released, you can see related articles from it.

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Answer 2

Hope, the below article is helpful
fixed

Answer 3

I have Exchange 2013 Version 15.0 ‎(Build 847.32)‎ with Security Update For Exchange Server 2013 SP1 and need to install the update CU 23.
Can I install CU 23 directly or do I have to install all older Updates before?
Is the a good explanation on the web, how tp do it?