These release notes accompany Junos OS Release 19.4R2 for vSRX. They describe new and changed features, known behavior, and known and resolved problems in the software.
vSRX is a virtual security appliance that provides security and networking services in virtualized private or public cloud environments. vSRX runs as a virtual machine (VM) on x86 servers that support virtualization, and it enables advanced security and routing at the network edge in multitenant virtualized environments.
vSRX is built on Junos OS and delivers security and networking features similar to those available on SRX Series Services Gateways.
You can also find the vSRX release notes in the Juniper Networks TechLibrary, located at https://www.juniper.net/documentation/.