Update CHANGELOG-1.7.0.md

[gallacher]

Description

A few sentences describing the overall goals of the pull request's commits.

GitHub Issues

Updated GitHub issue title to reflect more clarity for the CSM 1.7.1 release

GitHub Issue #

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, vetting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Test A
• Test B

[csmbot]

@gallacher: Thank you for submitting your pull request!

Please make sure you have followed our contributing guidelines. We will review it as soon as possible.

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