Deno 1 · Version Status
Deno 1 End of Life Date
Deno 1 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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Deno 1 is past end of life. This version no longer receives security patches. 759 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 9, 2024
759 days past EOL
Latest Release
1.46.3
Standard release
Release Date
Apr 13, 2020
Deno 1 series
Where these dates come from
End of lifeOct 9, 2024endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees ReleaseApr 13, 2020endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
Deno 1 was released on April 13, 2020 and support ended on October 9, 2024 — a supported lifespan of 4 years and 6 months, longer than the 3 months median for Deno releases. It was not an LTS release; Deno reserves longer patch windows for its LTS releases. Its latest release on record is 1.46.3, published September 4, 2024 — 35 days before support ended. It has been past its end-of-life date for 2 years and 1 month. 9 newer Deno releases have shipped since.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Deno 1 support options
Some vendors and third parties sell security patches beyond end of life; whether one covers this version varies. Compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| → 1 |
1.46.3 |
Oct 9, 2024 |
EOL |
| 2.0 |
2.0.6 |
Nov 21, 2024 |
EOL |
| 2.1 LTS |
2.1.14 |
Apr 30, 2025 |
EOL |
| 2.2 LTS |
2.2.15 |
Oct 31, 2025 |
EOL |
| 2.3 |
2.3.7 |
Jul 1, 2025 |
EOL |
| 2.4 |
2.4.5 |
Sep 10, 2025 |
EOL |
| 2.5 LTS |
2.5.7 |
Apr 30, 2026 |
EOL |
| 2.6 |
2.6.10 |
Feb 25, 2026 |
EOL |
What does Deno 1 end of life mean?
When Deno 1 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Deno 1 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Deno 2.9 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Deno 1 reach end of life?
Deno 1 reached end of life on October 9, 2024. This version is no longer receiving security patches.
Is Deno 1 still supported?
No. Deno 1 reached end of life on October 9, 2024 and is no longer receiving security patches.
What should I upgrade to from Deno 1?
The recommended upgrade from Deno 1 is
Deno 2.9 — the latest actively supported version. Check the
Deno full timeline for all supported versions.
What are the security risks of running Deno 1 past EOL?
Since Deno 1 reached end of life, the maintainers no longer issue security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Deno should migrate immediately or implement compensating controls.