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What do these changes do?
Add deprecation warnings to TCP connections that use md5 or sha1 for fingerprinting of site credentials. The testing for this warning is currently in the client functional tests, and may be more appropriate for the test_connector file.
Are there changes in behavior for the user?
Users will be warned of deprecation of MD5 and SHA1 hashes.
Related issue number
#1186
Checklist
CONTRIBUTORS.txt
CHANGES.rst
#issue_number
format at the end of changelog message. Use Pull Request number if there are no issues for PR or PR covers the issue only partially.