New Relic Insights has released new functionality called SINCE, which allows users to ask questions about their data relative to rolling time windows, providing more relevant information than previous methods. This new query syntax for NRQL (Insights' query language) enables users to ask questions such as "What was our backend response time like during our peak load hours today?" or "How did our error rate change on Transactions during our maintenance window on Sunday?" The SINCE functionality also includes pre-set time ranges and "helper" keywords that can be used to further customize results, making it easier for users to get the information they need. Additionally, a new stddev() function has been added, which returns a single standard deviation for a given attribute in Insights, providing insights into variation in load times or other metrics.