Announcing NGINX Plus R27 We’re happy to announce the availability of NGINX Plus Release 27 (R27). Based on NGINX Open Source, NGINX Plus is the only all-in-one software web server, load balancer, reverse proxy, content cache, and API gateway. New and enhanced features in NGINX Plus R27 include: Keepalive connections for health checks – In previous releases, NGINX Plus established a new connection for each health check. The new keepalive_time parameter to the HTTP health_check directive enables keepalive connections for health checks and sets their lifetime. Establishing new connections is computationally expensive, so reusing connections can reduce CPU usage considerably when there are large numbers of upstream servers. Support for Kernel TLS – NGINX Plus now supports Kernel TLS (kTLS) on three operating systems which meet the requirements for supporting it: FreeBSD 13, RHEL 9.0+, and Ubuntu 22.04 LTS. TLS metrics for upstream and virtual servers – [ more… ]