How are you being compatible with GitHub by changing the default branch name? It's completely unnecessary. If you're using "master" as the default branch name, GitHub will still let you use it as the default branch name.
When you create a repository on GitHub the default branch is main. It's not prohibited to use master as a default branch, but that would require a bit of a setup on GitHub to change the default name. Now I personally don't have a preference on how the branch is going to be called, but if a service, that I rely on a daily basis, asks me to do a one tiny naming change I prefer to comply out of respect.
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How are you being compatible with GitHub by changing the default branch name? It's completely unnecessary. If you're using "master" as the default branch name, GitHub will still let you use it as the default branch name.
When you create a repository on GitHub the default branch is main. It's not prohibited to use master as a default branch, but that would require a bit of a setup on GitHub to change the default name. Now I personally don't have a preference on how the branch is going to be called, but if a service, that I rely on a daily basis, asks me to do a one tiny naming change I prefer to comply out of respect.