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FortiOS Release Notes

Change Log

Change Log

Date

Change Description

2025-04-16

Initial release.

2025-04-16

Updated Resolved issues and Known issues.

2025-04-17

Updated Resolved issues and Known issues.

2025-04-21

Added Changes in GUI behavior.

Updated Changes in CLI, Resolved issues, and Known issues.

2025-04-22

Updated Built-in AV Engine and FortiManager support for updated FortiOS private data encryption key.

2025-04-28

Updated New features or enhancements, Resolved issues, and Known issues.

2025-04-29

Updated Changes in CLI.

2025-05-01

Updated Policies that use an interface show missing or empty values after an upgrade.

2025-05-02

Updated SSL VPN tunnel mode replaced with IPsec VPN.

2025-05-05

Updated Changes in CLI, New features or enhancements, Resolved issues, and Known issues.

2025-05-13

Updated Resolved issues and Known issues.

2025-05-20

Updated Resolved issues and Known issues.

2025-05-26

Updated Resolved issues and Known issues.

2025-06-02

Updated Resolved issues.

2025-06-03

Updated Resolved issues.

2025-06-04

Updated Resolved issues and Known issues.

2025-06-05

Updated Changes in default behavior.

2025-06-09

Added Removed speed setting affects SFP+ interfaces after upgrade.

Updated New features or enhancements, Resolved issues, and Known issues.

2025-06-11

Updated Resolved issues and Known issues.

2025-06-16

Updated Resolved issues and Known issues.

2025-06-20

Updated Resolved issues and Known issues.

2025-06-24

Updated Product integration and support, Changes in CLI, New features or enhancements, Resolved issues, and Known issues.

2025-07-02

Updated Known issues.

2025-07-07

Updated New features or enhancements, Resolved issues, and Known issues.

2025-07-17

Updated Known issues.

2025-07-21

Updated Known issues.

2025-08-18

Updated Special notices, Resolved issues, and Known issues.

2025-08-18

Added Hyperscale with FGCP HA clusters and interface monitoring.

Updated Special notices, Changes in default behavior, and Known issues.

2025-08-25

Updated Changes in CLI.

2025-09-02

Updated Upgrade information, Resolved issues, and Known issues.

2025-09-15

Updated Known issues.

2025-09-22

Updated Known issues.

2025-10-01

Updated Resolved issues, Known issues, and Built-in IPS Engine.

2025-10-14

Updated Changes in CLI and Changes in table size.

2025-10-21

Updated Resolved issues.

2025-10-27

Updated Resolved issues and Known issues.

2025-11-26

Updated Resolved issues and Known issues.

2025-12-02

Updated Changes in default behavior, Resolved issues, and Known issues.

2025-12-22

Updated Special notices, New features or enhancements, Resolved issues, Known issues, and Built-in IPS Engine.

2026-01-05

Updated Built-in IPS Engine.

2026-01-19

Updated Known issues.

2026-01-20

Updated Known issues.

2026-01-26

Updated Known issues.

2026-02-03

Updated Resolved issues and Known issues.

2026-02-10

Updated Resolved issues and Known issues.

2026-02-17

Updated Resolved issues.

2026-03-02

Updated Resolved issues and Known issues.

2026-03-16

Updated Resolved issues and Known issues.

2026-03-30

Updated Resolved issues.

2026-04-07

Updated Resolved issues and Known issues.

2026-04-13

Updated Resolved issues and Known issues.

2026-04-23

Updated Upgrade information, Resolved issues, and Known issues.

2026-04-27

Updated Changes in default behavior, New features or enhancements, Upgrade information, Built-in IPS Engine, Resolved issues, and Known issues.

Change Log

Change Log

Date

Change Description

2025-04-16

Initial release.

2025-04-16

Updated Resolved issues and Known issues.

2025-04-17

Updated Resolved issues and Known issues.

2025-04-21

Added Changes in GUI behavior.

Updated Changes in CLI, Resolved issues, and Known issues.

2025-04-22

Updated Built-in AV Engine and FortiManager support for updated FortiOS private data encryption key.

2025-04-28

Updated New features or enhancements, Resolved issues, and Known issues.

2025-04-29

Updated Changes in CLI.

2025-05-01

Updated Policies that use an interface show missing or empty values after an upgrade.

2025-05-02

Updated SSL VPN tunnel mode replaced with IPsec VPN.

2025-05-05

Updated Changes in CLI, New features or enhancements, Resolved issues, and Known issues.

2025-05-13

Updated Resolved issues and Known issues.

2025-05-20

Updated Resolved issues and Known issues.

2025-05-26

Updated Resolved issues and Known issues.

2025-06-02

Updated Resolved issues.

2025-06-03

Updated Resolved issues.

2025-06-04

Updated Resolved issues and Known issues.

2025-06-05

Updated Changes in default behavior.

2025-06-09

Added Removed speed setting affects SFP+ interfaces after upgrade.

Updated New features or enhancements, Resolved issues, and Known issues.

2025-06-11

Updated Resolved issues and Known issues.

2025-06-16

Updated Resolved issues and Known issues.

2025-06-20

Updated Resolved issues and Known issues.

2025-06-24

Updated Product integration and support, Changes in CLI, New features or enhancements, Resolved issues, and Known issues.

2025-07-02

Updated Known issues.

2025-07-07

Updated New features or enhancements, Resolved issues, and Known issues.

2025-07-17

Updated Known issues.

2025-07-21

Updated Known issues.

2025-08-18

Updated Special notices, Resolved issues, and Known issues.

2025-08-18

Added Hyperscale with FGCP HA clusters and interface monitoring.

Updated Special notices, Changes in default behavior, and Known issues.

2025-08-25

Updated Changes in CLI.

2025-09-02

Updated Upgrade information, Resolved issues, and Known issues.

2025-09-15

Updated Known issues.

2025-09-22

Updated Known issues.

2025-10-01

Updated Resolved issues, Known issues, and Built-in IPS Engine.

2025-10-14

Updated Changes in CLI and Changes in table size.

2025-10-21

Updated Resolved issues.

2025-10-27

Updated Resolved issues and Known issues.

2025-11-26

Updated Resolved issues and Known issues.

2025-12-02

Updated Changes in default behavior, Resolved issues, and Known issues.

2025-12-22

Updated Special notices, New features or enhancements, Resolved issues, Known issues, and Built-in IPS Engine.

2026-01-05

Updated Built-in IPS Engine.

2026-01-19

Updated Known issues.

2026-01-20

Updated Known issues.

2026-01-26

Updated Known issues.

2026-02-03

Updated Resolved issues and Known issues.

2026-02-10

Updated Resolved issues and Known issues.

2026-02-17

Updated Resolved issues.

2026-03-02

Updated Resolved issues and Known issues.

2026-03-16

Updated Resolved issues and Known issues.

2026-03-30

Updated Resolved issues.

2026-04-07

Updated Resolved issues and Known issues.

2026-04-13

Updated Resolved issues and Known issues.

2026-04-23

Updated Upgrade information, Resolved issues, and Known issues.

2026-04-27

Updated Changes in default behavior, New features or enhancements, Upgrade information, Built-in IPS Engine, Resolved issues, and Known issues.