July 2020 VCL changes

July 28, 2020

Today the minimum version of VCL available across our network increased, unlocking the following changes:

New variables

These variables all relate to the concept of staleness and revalidation. They are intended to help developers get a better understanding of the state of stale content, which can help with performance monitoring and observability in general.

Prior change: CLI v0.16.1

Following change: September 2020 VCL changes