We are pleased to announce that NGINX Plus Release 21 (R21) is now available. Based on NGINX Open Source, NGINX Plus is the only all-in-one load balancer, content cache, web server, and API gateway. With more than 450 million web sites relying on NGINX, NGINX Plus R21 is more reliable and more secure than ever before, primarily focusing on bug fixes and stability improvements from NGINX Open Source.

New features of NGINX Plus R21 include:

Dynamic gRPC proxying – We’ve added variable support when passing gRPC connections to backend gRPC services. This enables you to dynamically route gRPC connections to groups of services based on client attributes.
NGINX JavaScript module enhancements – The NGINX JavaScript module (njs) has been updated to version 0.3.9, with several bug fixes and additional functional enhancements related to subrequests and filesystem support.

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