CHANGELOG.md in fastly-5.1.0 vs CHANGELOG.md in fastly-5.1.1

@@ -1,6 +1,17 @@
 # Changelog
 
+## [v5.1.1](https://github.com/fastly/fastly-ruby/releases/tag/release/v5.1.1) (2023-05-22)
+
+**Bug fixes:**
+
+- fix(acl): change `version` from int to string.
+- fix(acl): add missing methods for `service_id` and `service_version` properties.
+- fix(backend): make `ssl_check_cert` nullable.
+- fix(purge): skip URL escape for `surrogate_key` param.
+- fix(snippets): change `priority` and `version` from int to string.
+- fix(snippets): add missing methods for `service_id` and `service_version` properties.
+
 ## [v5.1.0](https://github.com/fastly/fastly-ruby/releases/tag/release/v5.1.0) (2023-05-17)
 
 **Enhancements:**
 
 - feat(config_store): add Config Store endpoints.