General availability: Azure API Management updates - August 2021

A regular Azure API Management service update was started on August 19, 2021\. It includes the following new features, bug fixes, and changes, along with other improvements. ### **New features:** * [The availability zones feature](https://aka.ms/apimaz) is now supported in four new regions: South Africa North, Germany West Central, Korea Central, and Norway East. * The `rate-limit-by-key` policy now supports policy expressions in the `calls` and `renewal-period` attributes. The `renewal-period`'s upper limit of 5 minutes still applies. * The upper limit of the `max-size` attribute of the `validate-content` policy can now be increased beyond 100kB through Azure support. * API inspector's traces now include the service name property. * API Management is now more responsive to moves and cluster scale-outs of Service Fabric backends. * API Management now supports custom domain certificates encrypted with the `AES256_SHA256` algorithm. * The `Network Status` management API response and page in the Azure portal now include details about the connectivity to Azure Application Insights for services with configured Application Insights loggers. * The "Publish" button on the "Developer portal overview" page of API Management services in the Azure portal now uses the new `Portal revisions` API, which makes it easier to publish the portal for virtual-network-injected services. * Clicking on a grid's row in the "Subscriptions" page of Azure API Management services in the Azure portal now brings up a new subscription editing interface. Details on all these new features, bug fixes, and other changes can be [found here on Github.](https://github.com/Azure/API-Management/releases/tag/release-service-2021-08) * API Management * Features * Services * [ API Management](https://azure.microsoft.com/en-gb/products/api-management/)