InfluxDB 1.6.0 OSS has been released, featuring new InfluxQL Transformation functions including trigonometric and rounding functions, as well as Technical Analysis functions. The release also includes performance improvements such as parallelization of gzip for backups and optimization of the Spread() function. Operational improvements include HTTP write throttle settings, customizable Unix socket group and permissions, and the ability to disable the write log. Additionally, points are now validated when ingested and index usage information is logged during startup.