C100 (V5.6)

Key dates

Release

By July 2024 at the latest

The maker gives no launch date. This is the month of the first update: the launch was in it or before.

Last update

August 28, 2026 · version 1.5.7 Build 260709

End of support

No end date

Estimated end

January 2030 · estimate

The maker’s policy says security updates usually end 3 years after discontinuation.

Discontinued in the US

January 16, 2027 (planned)

Source·TP-Link (opens in a new tab)·checked November 13, 2026

Firmware updates

Updates I found on the maker’s pages, from July 2024 to August 2026. I read the notes of 9 of these updates and found security changes in 6.

2026-08-28

1.5.7 Build 260709 Security, new features or improvements

2026-07-21

1.5.4 Build 260528 Security, new features or improvements

2026-03-31

1.4.4 Build 260303 Security

2026-01-19

1.4.3 Build 251128 Security, new features or improvements

2025-11-13

1.3.5 Build 251109 Bug fixes, new features or improvements

Sources

• TP-Link (opens in a new tab) End-of-sale listlast verified November 13, 2026
• TP-Link (opens in a new tab) Firmware downloadslast verified October 15, 2026
• Vulnerability data: vendor security bulletins, CISA Known Exploited Vulnerabilities catalog, NVD, FIRST EPSSas of November 13, 2026 · Data sources