February 2021 VCL release ("Pakora")
Today the minimum version of VCL available across our network increased, unlocking the following changes:
Improved content
- We've renamed a bunch of function arguments in places where names were previously misleading; for example, arguments referred to as
pattern
despite not being regular expressions. These are now more correctly referred to assubject
ortarget
. - Historically, we have used the word 'datacenter' to refer interchangeably to either a physical location at which Fastly has a presence, or to a set of Fastly servers acting together as a cache. These concepts are no longer always the same, and so references to 'data center' have been changed to reflect whether they, in each case, refer to a site or to a POP.
- We better described the behavior of
not set
values when assigned toSTRING
variables. - The
client.sess_timeout
variable's default value was corrected: the reference incorrectly stated that this was 10 seconds when it is actually 10 minutes.
Updated function and variable descriptions
We expanded the descriptions of a number of functions and variables, adding detail, code examples, and, in some cases, better explanations of error conditions or edge cases. There were updates to:
obj.ttl
req.body
client.geo.ip_override
beresp.ttl
xml_escape
table.lookup
subfield
std.suffixof
std.strlen
std.replaceall
std.replace
std.replace_suffix
std.replace_prefix
geoip.city
Prior change: CLI v0.24.2
Following change: Fastly Terraform Provider 0.25.0