Spring Boot 2.1 End of Life
Support dates, vulnerabilities published since end of life, and upgrade guidance — rebuilt from live data.
Spring Boot 2.1 reached end of life on 30 Oct 2019. It no longer receives security fixes.
Support timeline
Official dates from the Spring Boot release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 30 Oct 2018 | — |
| End of life | 30 Oct 2019 | 6.8 years ago |
| Extended support ends | 30 Jan 2021 | over |
| Latest release | 2.1.18 · 29 Oct 2020 | final |
The cost of staying: CVEs since end of life
17 Spring Boot vulnerabilities have been published since 30 Oct 2019. All were fixed in supported branches — 2.1 received none of them. Source: NVD.
Spring Boot CVEs published since 2.1's EOL, by year
4 of the 17 are rated critical · data refreshed 2026-08-09
Published 15 Mar 2021 · rated critical — fixed in supported branches only, never in 2.1. Details
Published 20 Apr 2023 · rated critical — fixed in supported branches only, never in 2.1. Details
Published 25 Oct 2023 · rated critical — fixed in supported branches only, never in 2.1. Details
Where to go from 2.1
Recommended target: Spring Boot 4.1 (supported until 31 Jul 2027).
The newest actively supported branch is Spring Boot 4.1 (latest release 4.1.0).
Frequently asked questions
Is Spring Boot 2.1 still safe to use?
No. Spring Boot 2.1 stopped receiving security fixes on 30 Oct 2019. Since then, 17 Spring Boot vulnerabilities have been published and fixed in supported branches — Spring Boot 2.1 received none of those fixes.
Can I still download Spring Boot 2.1?
Yes — the final release (2.1.18) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Spring Boot 2.1 to?
Upgrade to Spring Boot 4.1, the newest actively supported branch (supported until 31 Jul 2027).