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    Type:
New Feature
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    Resolution: Unresolved
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    Priority:
Unknown
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    None
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    Affects Version/s: None
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    Component/s: Associations
 
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New in AR 6.1 where they call it "strict loading associations":
https://guides.rubyonrails.org/6_1_release_notes.html#strict-loading-associations
Strict loading associations allows you to ensure that all your associations are loaded eagerly and stop N+1's before they happen.