Version 27.4.0

September 2025

Compatibility and Installation Notes

• Most popular browsers are supported, but Google Chrome is preferred for the real-time graphics display on the Dashboard.
• A MySonicWall account is required.

What's New

MySonicWall 27.4.0 includes the following newly added features

• Theron is renamed as "SonicWall Endpoint Security (SES)".

• Admin can now activate SEED SonicWall Endpoint Security (SES) Licenses for eligible firewalls.

Resolved Issues

There are no Resolved Issues in this release.

Known Issues

There are no Known Issues in this release.

Additional References

MSW-47166, MSW-47112, MSW-46997, MSW-46991, MSW-46958, MSW-46957, MSW-46943, MSW-46916, MSW-46884, MSW-46827, MSW-46791, MSW-46753, MSW-46743, MSW-46695, MSW-46693, MSW-46676, MSW-46623, MSW-46620, MSW-46608, MSW-46542, MSW-46533, MSW-46510, MSW-46509, MSW-46486, MSW-46396, MSW-46395, MSW-46394, MSW-46393, MSW-46391, MSW-46388, MSW-46385, MSW-46380, MSW-46374, MSW-46373, MSW-46369, MSW-46365, MSW-46361, MSW-46344, MSW-46339, MSW-46337, MSW-46331, MSW-46329, MSW-46327, MSW-46313, MSW-46305, MSW-46298, MSW-46294, MSW-46289, MSW-46266, MSW-46262, MSW-46261, MSW-46259, MSW-46231, MSW-46221, MSW-46209, MSW-46197, MSW-46169, MSW-46151, MSW-46145, MSW-46143, MSW-46133, MSW-46123, MSW-46122, MSW-46117, MSW-46115, MSW-46066, MSW-46063, MSW-46062, MSW-46034, MSW-46008, MSW-46006, MSW-45996, MSW-45990, MSW-45966, MSW-45959, MSW-45924, MSW-45911, MSW-45910, MSW-45907, MSW-45896, MSW-45860, MSW-45858, MSW-45838, MSW-45828, MSW-45805, MSW-45804, MSW-45776, MSW-45743, MSW-45742, MSW-45737, MSW-45576, MSW-45573, MSW-45387, MSW-45384, MSW-45360, MSW-45349, MSW-45169, MSW-45166, MSW-45042, MSW-45022, MSW-45006, MSW-45004, MSW-44995, MSW-44984, MSW-44983, MSW-44982, MSW-44947, MSW-44916, MSW-44834, MSW-44786, MSW-44784, MSW-44778, MSW-44744, MSW-44679, MSW-44617, MSW-44560, MSW-44559, MSW-44552, MSW-44478, MSW-44474, MSW-44470, MSW-44454, MSW-44427, MSW-44426, MSW-44422, MSW-44400, MSW-44398, MSW-44288, MSW-44227, MSW-44200, MSW-44104, MSW-44100, MSW-44020, MSW-43987, MSW-43934, MSW-43903, MSW-43838, MSW-43727, MSW-43414, MSW-43345, MSW-43141, MSW-43018, MSW-41803, MSW-39554