Skip to content

F5 Updates: End of Life, CVEs, & Latest Security Advisory

WorldTech IT is Your Trusted F5 Platinum Partner

Updated on 4/03/26

Hardware & Software End of Life

Summary: iSeries & Viprion 2k hardware are losing support, unable to handle current security and compliance needs, while putting systems at risk. Lengthy order times and migration processes can take 3 - 6 months, so getting started now decreases your operational security risks.

 



Q1 2026 EOLF5 Network's End of Life Schedule

Hardware & Software End of Life Dates:
Continuing to run your environment on unsupported hardware limits how you secure, scale, and modernize your applications. To help you plan confidently, we have created a clear breakdown of the lifecycle milestones and your options moving forward.

Date Upgrade
Jul-25
Software
End of Software Development (EoSD) & Support (EoTS)
BIG-IP 16.1.x
Oct-25 (No lifecycle events scheduled)
Jan-26
Hardware
End of New SW Support (EoNSS) / End of Sale (EoS)
iSeries (i850 → i11800), VIPRION 4480 / 4800 / B4450 / B4460
Jan-26
Software
End of Software Development (EoSD) & Support (EoTS)
BIG-IP 15.1.x FIPS
Apr-26
Hardware
End of Software Support (EoNSS)
VIPRION 2400 / C2200 / B2150 / B2250
Apr-26
Software
End of Software Development (EoSD) & Support (EoTS)
BIG-IP 16.1.x FIPS

What it means for you:

  • Surprise CapEx at any time moving forward.

  • "Right-sized" boxes today will underperform in 2 to 4 years.

  • Unpatched systems leading to downtime.

  • App outages, slowdowns, or failed audits.

  • Extended Support Phase is very expensive ($$$).

iSeries:

  • Legacy platform nearing support sunset and must refresh to avoid risk!
  • i5820-DF, i7820-DF, i15600, i15800, and i15820-DF are excluded; all other models are open for refresh.
  • Past EoNSS (Dec. 31, 2025) no platform validation on new software.
  • Past EoSS (Dec. 31, 2026) no F5 fixes period. 
  • Extended Support is fee-based, feature-limited, and very expensive ($$$).
  • Replace with rSeries/VELOS sized to workload.
iSeries

Viprion:

  • The 2k Series chassis platform also hits EoNSS (Dec. 31, 2025) and EoSS (Dec. 31, 2026).
  • All blades/chassis are eligible for refresh - none are "protected."
  • Limited SSL/TLS performance and high power/cooling overhead.
  • Replace with rSeries for most, VELOS for large 4-slot+ sites.
  • Waiting amplifies compliance and performance gaps.
Viprions

How WorldTech IT Can Help

  • Elite F5 Expertise: F5 Platinum and GUARDIAN Professional Services Partner with senior engineers who specialize exclusively in F5 upgrades, migrations, and lifecycle transitions.
  • Proven Zero Downtime Upgrade Framework: A repeatable, battle-tested upgrade methodology that includes full dependency checks, compatibility validation, and structured rollback planning.
  • Reduce Risk and Strengthen Security: Avoid outages, configuration breakage, and security exposure from unsupported software. WTIT identifies and resolves issues before cutover.
  • Offload Resource Heavy Work: Free your internal teams by letting WTIT handle planning, staging, testing, and execution which accelerates timelines and reduces workload.
  • Unlock Modern Performance and Capabilities: Upgrade to supported platforms (R-Series, VELOS, modern TMOS versions) for better speed, security, reliability, and cloud-ready functionality.
  • Clear Predictable Scoping and White Glove Support: Start with a free scoping call and receive transparent project plans, milestone based pricing, and direct access to F5 certified experts.