AWS Config now supports the ability to capture and view the compliance history of AWS Config conformance packs. You can see how the overall compliance status of a conformance pack changed over time, and which rules within a conformance pack impacted the status change. You can aggregate conformance pack compliance data from multiple accounts and AWS Regions using AWS Config aggregators to get a centralized view of your compliance regimes and operational best practices. You can maintain up to 7 years of history. You can also run AWS Config advanced queries on this data for more details about your conformance pack compliance.
Source:: Amazon AWS