Amplify Fusion Q1 2026 feature updates

Amplify Fusion updates deliver high-performance protocol support and critical security enhancements for hybrid integration flows.

Expanded protocol and connectivity

GRPC client and server support

Fusion now officially supports the gRPC protocol. The new gRPC Client connector supports server streaming APIs, while a new feature allows for calling gRPC back-end services over RESTful APIs by ingesting proto descriptor files.

Advanced SFTP capabilities

The SFTP client now supports larger file uploads. Additionally, the connector now offers Public Key Authentication and supports "Stream" as a configurable input file type for MGet and MPut operations to optimize resource usage.

HTTP Client Enhancements

Added support for OAuth 2.x Client Credentials combined with mTLS, providing a highly secure mechanism for service-to-service authentication.

Expanded protocol and connectivity

gRPC client and server support

Fusion now officially supports the gRPC protocol. The new gRPC Client connector supports server streaming APIs, while a new feature allows for calling gRPC back-end services over RESTful APIs by ingesting proto descriptor files.

Advanced SFTP capabilities

The SFTP client now supports larger file uploads. Additionally, the connector now offers Public Key Authentication and supports "Stream" as a configurable input file type for MGet and MPut operations to optimize resource usage.

HTTP client enhancements

Added support for OAuth 2.x Client Credentials combined with mTLS, providing a highly secure mechanism for service-to-service authentication.

Security and cryptographic governance

Asymmetric signing and verification

The Crypto component has been upgraded to support asymmetric signing using RSA and Elliptic Curve (EC) algorithms for JSON Web Tokens (JWT). Verification now also supports EC-based signatures.

JWE token generation

Fusion now supports the generation of JSON Web Encryption (JWE) tokens using symmetric keys, compliant with RFC 7516.

Managed keys support

Users can now perform message signing and verification using Fusion-managed keys as an alternative to external HSM connections.

Operational performance and infrastructure

Intelligent connection reuse

The HTTP Client now reuses persistent connections even when "Override Connection" is selected, provided core security settings remain unchanged. Similarly, the system now evaluates overridden properties to reuse cached tokens whenever applicable, reducing redundant authentication calls.

Data plane rate limiting

Fusion now supports configurable rate limits directly on each data plane, allowing customers to protect back-end services with throttling at the month, week, day, hour, minute, and second levels.

Workload Identity Federation (WIF)

Enhanced WIF support includes a redesigned UI that groups identity provider, Google STS, and Google IAM fields for more intuitive configuration and validation.

Observability and monitoring

JSON-formatted logging

Logs in both Studio and the Fusion data plane are now presented in JSON format by default, simplifying integration with modern log management stacks.

Enhanced monitor dashboard

The Monitor dashboard now provides separate tabs for API Transactions versus general transactions, improving visibility into specific traffic patterns.