DuckDB 1.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
DuckDB 1.5 is actively supported. It reaches end of life on 1 Mar 2027.
136 days of security support left
1.5.6 latest release
62% of this branch's supported lifetime has elapsed — 9 Mar 2026 → 1 Mar 2027.
Check your versionduckdb -version
Support timeline
Official dates from the DuckDB release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 9 Mar 2026 | 7mo ago |
| Support Status ends | 1 Mar 2027 | in 4mo |
| Latest release | 1.5.6 · 28 Sept 2026 | current |
How much runway a newer branch buys
DuckDB 1.5 is the newest branch — this is the longest runway currently available.
| Branch | End of life | Days left | vs 1.5 |
|---|---|---|---|
| DuckDB 1.5 | 1 Mar 2027 | 136 | this branch |
| DuckDB 1.4 | 17 Nov 2026 | 32 | -104 days |
Frequently asked questions
When does DuckDB 1.5 reach end of life?
DuckDB 1.5 reaches end of life on 1 Mar 2027 — 136 days from now. After that date it receives no security fixes.
Is DuckDB 1.5 still supported?
Yes. DuckDB 1.5 is currently maintained. Latest release: 1.5.6, published 28 Sept 2026.
What happens when DuckDB 1.5 reaches end of life?
Security fixes stop. After 1 Mar 2027 this branch receives no further updates under standard support.
How long do I have to upgrade from DuckDB 1.5?
136 days. This is already the newest branch, so this is the longest runway currently available.