Version 4 Update

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Description

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Related Issue

This update covers many issues.

Motivation and Context

See release notes for detailed changes.

How Has This Been Tested?

This pull request has passed all required unit tests.

Screenshots (if appropriate):

Types of changes

What types of changes does your code introduce? Put an x in all the boxes that apply:

[x ] Bug fix (non-breaking change which fixes an issue)
[x ] New feature (non-breaking change which adds functionality)
[x ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

Go over all the following points, and put an x in all the boxes that apply. If you're unsure about any of these, don't hesitate to ask. We're here to help!