The following Identity-Aware Proxy (IAP) enhancements are generally available (GA)
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## Feature
The following Identity-Aware Proxy (IAP) enhancements are generally available ([GA](https://cloud.google.com/products#product-launch-stages)):
* [IAP TCP forwarding for non-Google Cloud environments](https://cloud.google.com/iap/docs/tcp-by-host)
* [IAP reauthentication ](https://cloud.google.com/iap/docs/configuring-reauth)
* [IAP allowed domains](https://cloud.google.com/iap/docs/allowed-domains)
## Feature
Identity-Aware Proxy (IAP) [SAML attribute propagation](https://cloud.google.com/iap/docs/saml-attribute-propagation) is available in [Preview](https://cloud.google.com/products#product-launch-stages).