Use newer syntax
MODIFY
WalletWasabi/BitcoinCore/Rpc/RpcParser.cs
WalletWasabi/BitcoinCore/Rpc/RpcParser.cs
@@ -44,7 +44,7 @@ namespace WalletWasabi.BitcoinCore.Rpc
var blockInfo = new VerboseBlockInfo(
hash: uint256.Parse(blockInfoJson.GetProperty("hash").GetString()),
- prevBlockHash: previousBlockHash is { } ? uint256.Parse(previousBlockHash) : uint256.Zero,
+ prevBlockHash: previousBlockHash is not null ? uint256.Parse(previousBlockHash) : uint256.Zero,
confirmations: blockInfoJson.GetProperty("confirmations").GetUInt64(),
height: blockInfoJson.GetProperty("height").GetUInt64(),
blockTime: Utils.UnixTimeToDateTime(blockInfoJson.GetProperty("time").GetUInt32()),

Use newer syntax