RT-AC87U

Key dates

Release

By January 2018 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

May 18, 2021 · version 3.0.0.4.382.52545

End of support

May 18, 2021 · calculated by us from the maker’s data

How I calculated it: ASUS’s firmware page for this model says it reached end of life and its firmware will no longer be updated, next to the final firmware 3.0.0.4.382.52545. ASUS gives no separate date, so we use that final firmware’s release date (2021-05-18).

Maker’s end-of-life list

Listed, no date given

Firmware updates

Updates I found on the maker’s pages, from January 2018 to May 2021. I read the notes of 9 of these updates and found security changes in 7.

2021-05-18

3.0.0.4.382.52545 Security, bug fixes, new features or improvements

2020-07-09

3.0.0.4.382.52288 Security, new features or improvements · 2 vulnerability IDs (opens in a new tab)

2020-05-06

3.0.0.4.382.52230 Security, bug fixes, new features or improvements · 1 vulnerability ID (opens in a new tab)

2019-11-20

3.0.0.4.382.51939 Bug fixes, new features or improvements

2019-11-06

3.0.0.4.382.51641 Security

Sources

• ASUS (opens in a new tab) End-of-support listlast verified November 13, 2026
• ASUS (opens in a new tab) Security bulletinlast verified October 15, 2026
• ASUS (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