C400 (V2.6)

Key dates

Release

June 2025 · estimate

How I calculated it: The first firmware TP-Link's US download page lists for this hardware version (1.0.7 Build 250427, published 2025-06-27, marked there as the first firmware release) is used as the launch month; the model may have gone on sale shortly before.

Last update

October 29, 2026 · version 1.2.7 Build 260918

End of support

No end date

Estimated end

April 2028 · estimate

Marked “Likely ended (estimate)” if no update by then

Firmware updates

Updates I found on the maker’s pages, from June 2025 to October 2026. I read the notes of 7 of these updates and found security changes in 1.

2026-10-29

1.2.7 Build 260918 Bug fixes, new features or improvements

2026-07-03

1.2.5 Build 260515 Security, new features or improvements

2026-02-10

1.2.3 Build 251226 New features or improvements

2025-11-20

1.2.2 Build 250926 New features or improvements

2025-09-08

1.1.4 Build 250830 Bug fixes, new features or improvements

2025-07-08

1.1.0 Build 250627 New features or improvements

2025-06-27

1.0.7 Build 250427

Sources

• TP-Link (opens in a new tab) Firmware downloadslast verified November 3, 2026