Grafana Loki 2.7 introduces a significant experimental feature with the adoption of a Prometheus TSDB-inspired index, aimed at reducing storage footprint and enhancing query performance. Initially previewed at ObservabilityCON 2022, this update addresses challenges in handling high log volumes, improving query speeds, and reducing infrastructure costs. The TSDB index facilitates more efficient resource utilization, leading to a 75% reduction in index size and faster query processing, achieving up to 400GB/second scan speed. Users can activate the TSDB index by updating their configuration, though it remains in the experimental phase. The release also brings enhancements to Promtail, Azure blob storage support, and additional label_format fields, while community feedback and internal testing continue to refine its capabilities. For further details, the Grafana Loki 2.7 release notes and upgrade guide provide comprehensive insights, and the Grafana Cloud offers an accessible platform for engaging with metrics, logs, traces, and dashboards.