Contract uses old Solidity version when newer versions with newer features, fixes, security, bug fixes are available
Old Solidity version is a security risk due to potential unfixed issues or issues. For example only from 0.8.20 is overflow and underflow in-built in the protocol
Older versions of Solidity may have some bugs not yet fixed in newer versions
Manual Analysis
Use latest or later versions like 0.8.19(ideal for Layer 2's), 0.8.21 or 0.8.22
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