If you have fix some production issue (bug) then you are deploying the code into various environment but how you will insure that the bug you have fix (remove or adding new code) not breaking your existing functionality?

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Accepted Answer

To ensure that the bug fix does not break existing functionality, thorough testing and quality assurance processes should be followed.

Perform unit testing to verify that the bug fix works as expected and does not introduce new issues.
Conduct integration testing to ensure that the bug fix does not cause any conflicts or compatibility issues with other components.
Execute regression testing to validate that the bug fix does not impact previously working features.
Implement automated testing to continuously verify the stability of the codebase.
Utilize code reviews and peer testing to gain additional insights and identify potential issues.
Maintain a comprehensive test suite to cover different scenarios and edge cases.
Monitor the application in the production environment to promptly identify any issues caused by the bug fix.
Implement a rollback plan in case the bug fix introduces critical problems.
Collaborate with stakeholders and gather feedback to ensure the bug fix meets the desired requirements.

If you have fix some production issue (bug) then you are deploying the code into various environment but how you will insure that the bug you have fix (remove or adding new code) not breaking your existing functionality?

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