req.vcl
STRING, read-only.
Available inall subroutines.
The version of the service currently executing. Takes the form:
{serviceID}.{version}_{generation}-{hash}
Where:
{serviceID}
is the ID of the Fastly service.{version}
is the service version, an integer that increases each time the service configuration is cloned.{generation}
is an integer that increases each time the service is purged. Seereq.vcl.generation
.{hash}
is a hashsum of the VCL code.