Spring Boot 4.1 End of Life
Support dates, the patch stream you lose at EOL, and upgrade guidance — rebuilt from live data.
Spring Boot 4.1 is actively supported. It reaches end of life on 31 Jul 2027.
Support timeline
Official dates, read directly from api.spring.io and repo1.maven.org.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 10 Jun 2026 | — |
| End of life (scheduled) | 31 Jul 2027 | in 356 days |
| Extended support ends | 31 Jul 2028 | 722 days left |
| Latest release | 4.1.0 · 10 Jun 2026 | current |
What you lose on 31 Jul 2027
Being supported means fixes keep shipping to this branch. Here is the stream that stops. Source: NVD.
Spring Boot CVEs published and patched, by year
10 published in the last 12 months · data refreshed 2026-08-09
At the last-12-month rate of 10 Spring Boot CVEs, running 4.1 for a year past 31 Jul 2027 means roughly that many vulnerabilities fixed upstream but never backported to your branch. Past branches bear this out: Spring Boot 3.5 has missed 0 since it went end of life.
This product uses data from the NVD API but is not endorsed or certified by the NVD.
How much runway a newer branch buys
Spring Boot 4.1 is the newest branch — this is the longest runway currently available.
| Branch | End of life | Days left | vs 4.1 |
|---|---|---|---|
| Spring Boot 4.1 | 31 Jul 2027 | 356 | this branch |
| Spring Boot 4.0 | 31 Dec 2026 | 144 | -212 days |
Frequently asked questions
When does Spring Boot 4.1 reach end of life?
Spring Boot 4.1 reaches end of life on 31 Jul 2027 — 356 days from now. After that date it receives no security fixes.
Is Spring Boot 4.1 still supported?
Yes. Spring Boot 4.1 is currently maintained. Latest release: 4.1.0, published 10 Jun 2026.
What happens when Spring Boot 4.1 reaches end of life?
Security fixes stop. Over the last 12 months 10 Spring Boot vulnerabilities were published and patched across supported branches; once 4.1 is end of life, fixes at that rate no longer reach it.
How long do I have to upgrade from Spring Boot 4.1?
356 days. This is already the newest branch, so this is the longest runway currently available.