Just a quick warning so that we all remember to take action on this challenge.
Starting January 12, 2016 Microsoft will no longer provide security updates or hotfixes for .NET 4, 4.5, and 4.5.1 framework.
Support Ending for the .NET Framework 4, 4.5 and 4.5.1
This was previously announced in 2014:
Moving to the .NET Framework 4.5.2
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Modern workplace and infrastructure architect with a focus on Microsoft 365 and security.
