upgrade solidity

Author: shaspitz

contracts/README.md

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
 import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";

contracts/contracts/core/BidderRegistry.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {FeePayout} from "../utils/FeePayout.sol";
 import {IBlockTracker} from "../interfaces/IBlockTracker.sol";

contracts/contracts/core/BidderRegistryStorage.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {IBlockTracker} from "../interfaces/IBlockTracker.sol";
 import {BlockTrackerStorage} from "./BlockTrackerStorage.sol";

contracts/contracts/core/BlockTracker.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {IProviderRegistry} from "../interfaces/IProviderRegistry.sol";
 

contracts/contracts/core/BlockTrackerStorage.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
 import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";

contracts/contracts/core/Oracle.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {IPreconfManager} from "../interfaces/IPreconfManager.sol";
 import {IBlockTracker} from "../interfaces/IBlockTracker.sol";

contracts/contracts/core/OracleStorage.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {ECDSA} from "@openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol";
 import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";

contracts/contracts/core/PreconfManager.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {IProviderRegistry} from "../interfaces/IProviderRegistry.sol";
 import {IBidderRegistry} from "../interfaces/IBidderRegistry.sol";

contracts/contracts/core/PreconfManagerStorage.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: BSL 1.1
-pragma solidity 0.8.26;
+pragma solidity 0.8.28;
 
 import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
 import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";