Avoid leaving commented-out code in the codebase. Version control systems already track the history of changes, making commented-out code unnecessary. Removing unused commented code improves readability, reduces confusion, and keeps the codebase clean.
Example of code to avoid:
builder-to-testers-map:
ubuntu-20.04-x86_64:
- ubuntu-16.04-x86_64
- ubuntu-18.04-x86_64
- ubuntu-20.04-x86_64
# windows-2012r2-i386:
# - windows-2012r2-i386
Instead, simply remove the commented lines completely. If the code needs to be referenced later, it can be found in the commit history.
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