Add a strict mode to SecurityPolicy to opt-in to the 4.0 sandbox behavior for the extends/use tags and the parent/block/attribute functions#4817
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…vior for the extends/use tags and the parent/block/attribute functions
stof
approved these changes
May 25, 2026
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#4813 follow-up
As @stof mentioned on Slack, there is currently no way to avoid the deprecation if you want to forbid those tags.