BIND 9 end of life: end of support by version
ISC · Servers & Databases
For BIND 9 by ISC, patchletter knows 4 support cycles. 2 of them have already ended and receive no more security updates. The next support window closes on 08/07/2028, 608 days from now. The current version of BIND 9 is 9.20.30. The cycles come from the open endoflife.date project, last reconciled on 07/11/2026.
When does support end for which BIND 9 version?
A cycle is a maintained version line. Where a date is given, support ends on that day. After it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| 9.21 | 9.21.27 | no date on record | supported |
| 9.20LTS | 9.20.30 | 608 days left | EOL 8 Jul 28 |
| 9.18LTS | 9.18.50 | 131 days ago | End of Life |
| 9.16LTS | 9.16.50 | 952 days ago | End of Life |
Which BIND 9 versions no longer receive security updates?
2 of 4 cycles have ended. If you run one of those lines, the vendor ships you no more patches, not even for critical flaws.
- BIND 9 9.189.18.50
- BIND 9 9.169.16.50
Where does the EOL data for BIND 9 come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the BIND 9 data is as of 07/11/2026. In case of doubt the vendor's own lifecycle page applies. patchletter deliberately stores no vendor full texts.
New BIND 9 versions by email
Tick the product and patchletter reports new releases by email. The update email costs nothing, and one click stops it again. The warning 90, 30 and 7 days before support ends is part of patchletter Pro.