---
title: >-
  tls.client.cert_verify_result and tls.client.raw_certificate_b64 removal,
  regsub syntax addition, bug fixes
summary: null
url: https://www.fastly.com/documentation/reference/changes/2024/08/vcl-changes
---

## Removed

- `tls.client.cert_verify_result` and `tls.client.raw_certificate_b64`, previously deprecated, have now been removed. 
  `tls.client.certificate.is_verified` exists as a direct replacement for the first, and an indirect replacement for the second.  

## Changed

- Groups captured via regsub's `pattern` argument can now be specified using {N}, for values of N >= 1 and <=19. For more information, see the documentation [here](https://www.fastly.com/documentation/reference/vcl/functions/strings/regsub/).

## Added

- Added a warning note about memory consumption in `std.count`.

## Fixed

- Various bug fixes to health checks.