Manual Chapter : New Features in BIG-IP Version 21.0.0.1

Applies To:

  • BIG-IP Distributed Cloud Services

    21.0.0.1

  • BIG-IP APM

    21.0.0.1

  • F5 SSL Orchestrator

    21.0.0.1

  • BIG-IP Analytics

    21.0.0.1

  • BIG-IP Link Controller

    21.0.0.1

  • BIG-IP LTM

    21.0.0.1

  • BIG-IP PEM

    21.0.0.1

  • BIG-IP AFM

    21.0.0.1

  • BIG-IP FPS

    21.0.0.1

  • BIG-IP DNS

    21.0.0.1

  • BIG-IP ASM

    21.0.0.1

back-action BIG-IP 21.0.0.1 New and Installation

New Features in BIG-IP Version 21.0.0.1

Updated Date: 01/29/2026

See the following articles for details of software lifecycle.

Support for HTTP1.1 is added which support the host header field. The OCSP requests for auth should now use HTTP1.1 version.

The system now logs the offending IP address whenever a rate limit is triggered, improving visibility and troubleshooting.