Introduction Installation Upgrading Troubleshooting Changelog Changelog for 6.0.x Changes (Varnish Cache 4.1) Changes (Varnish Cache Plus 4.1) Known Issues Features Backend SSL/TLS Client SSL/TLS termination Cluster In-Process TLS MSE 4 MSE 3.0 Settings mkfs.mse Memory Governor MSE 2.0 NUMA Parallel ESI Backend health counter HTTP/2 Support JSON Logging TCP Only Probes Timeouts Transit Buffer Varnish scoreboard VMODs Accept Accounting ACL (aclplus) ActiveDNS Akamai Connector AWS VCL Body Access & Transformation (xbody) Brotli Cookie Plus (cookieplus) DeviceAtlas DeviceAtlas3 Digest Dynamic backends (goto) Edgestash File Format Geolocation (geoip/mmdb) Header Manipulation (headerplus) HTTP communication (http) Image JSON parsing (json) JWT Key value storage (kvstore) Least connections director (leastconn) Module to control the built-in HTTP2 transport (h2) MSE control (mse) MSE4 control (mse4) Probe Proxy ProxyV2 TLV Attribute Extraction (proxy) Pseudo Random Number Generator Purge (purge/softpurge) Real-time Status (rtstatus) Reverse DNS (resolver) Rewrite S3 VMOD Session Slicer SQLite3 Stale Standard (std) Stat (Prometheus) Strings (str) Synthetic backends (synthbackend) Tag-based invalidation (Ykey/Xkey) TCP configuration (tcp) TLS Total Encryption (crypto) Unified director object (udo) Uniform Resource Identifier (uri) Unix Socket Utilities (unix) URL Plus (urlplus) Utils Vsthrottle