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How pragma works in Solidity

Created on May 2022 β€’ Tags: solidityethereumguides

A guide to understanding and writing the pragma visioning in Solidity

Table of Contents for How pragma works in Solidity

At the top of Solidity files you have to define what version of the compiler your Solidity file is written for.

Allow only a specific version of the Solidity compiler:

pragma solidity 0.8.4;

Allow a range of Solidity compiler versions

You can use less than/greater than signs to denote a range of versions that your code is valid for.

pragma solidity >=0.8.4 < 0.9.0 ;

Allow a minimum version of the Solidity compiler

Use the caret (^) to define a minimum version.

pragma solidity ^0.8.4; 

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