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4. 2021
5. June 2021

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

New region

• New AF-West region introduced, and documented in server.region.

New variables

• segmented_caching.block_size

New functions

• bin.base64_to_hex

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:

• querystring.clean
• randomint_seeded
• randomint
• resp.tarpit
• std.strlen
• bereq.first_byte_timeout
• bereq.http.{NAME}
• client.bot.name
• client.browser.name
• client.browser.version
• client.class.bot
• client.class.browser
• client.class.masquerading
• client.display.height
• client.display.ppi
• client.display.width
• client.identified
• client.platform.hwtype
• req.backend.is_origin
• req.backend.is_shield

Withdrawn documentation

The following VCL tokens are not (or are no longer) intended for customer use, and the reference pages for them have been removed to avoid confusion:

• client.sess_timeout
• req.backend.is_cluster