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aduba
aduba
New Member
February 23, 2026
Question

3000D model firmware missing in 7.4.11 and 7.6.6 version

  • February 23, 2026
  • 3 replies
  • 394 views

Until last week, our firewall indicated 7.4.11 as the mature release; however, as of today, I've observed it displaying 7.4.9 as the mature release. Furthermore, I am unable to locate these specific versions within the upgrade path. I am inquiring if anyone else is experiencing a similar issue. I have already initiated a TAC case to gather additional information regarding this matter.

3 replies

sw2090
SuperUser
sw2090
SuperUser
February 23, 2026

In Supportportal  7.4.10 and 7.4.11 exist but only für 3000F. Seems like Fortinet removed Support for 3000D in there. 7.4.9 still supports a 3000D.

    sw2090
    SuperUser
    sw2090
    SuperUser
    February 23, 2026

    Interestingly the release notes of both 7.4.10 and 7.4.11 state that a 3000D is still supported. Though there is no Firmware File for a 3000D available.

      mzainuddinahm
      Staff & Editor
      mzainuddinahm
      Staff & Editor
      February 24, 2026

      Hello aduba,

      As per further checking, there is a known issue with id: 1252663 that affected FortiGate D-series for this specific firmware version.

      Reference:
      https://docs.fortinet.com/document/fortigate/7.4.11/fortios-release-notes/236526/known-issues
      On FortiGate D-series devices running older BIOS versions, the serial number changes to FGT0000000000001 after upgrading to FortiOS 7.4.10, 7.4.11, 7.6.5, and 7.6.6.

      According to the information we have, the fix will be included in the next FortiOS release, version 7.4.12 GA. (tentative schedule date not yet announced).

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