runing this query
sfdx force:data:soql:query -q "SELECT MemberName, MemberType, ChangedBy, RevisionCounter FROM SourceMember" -t -u vscodeOrg
i got this error
sObject type 'SourceMember' is not supported. If you are attempting to use a custom object, be sure to append the '__c' after the entity name. Please reference your WSDL or the describe call for the appropriate names.
i want help
i ty to get all chage made in organisation
I am not sure of what environment you are running this query in (like a sandbox or a developer edition or a scratch org), but the possible change that is required before accessing SourceMember object that you might be missing is to enable Enable Source Tracking in the production Dev Hub org..
So, enable this and most probably you will be able to run the above mentioned query.
For more details you may refer to following Salesforce Developer Page: SourceMember(Tooling API Objects)