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Python 3.9 end-of-life and support dates | VendorEpoch

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Python Software Foundation · lifecycle evidence

Python 3.9

End of life Oct 31, 2025. This answer is based on an official source checked 7/28/2026.

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Verified milestones

Lifecycle timeline

Releasehigh

Oct 5, 2020

Evidence checked Jul 28, 2026.

End of lifehigh

Oct 31, 2025

Evidence checked Jul 28, 2026.

Provenance

Official evidence

high confidenceChecked 7/28/2026

Status of Python versions

“3.9: First release 2020-10-05; End of life 2025-10-31.”

View official source ↗

Change history

What changed

No material correction is recorded for this seed snapshot.

Future source changes will append the previous value, new value, evidence, detection time, and notification history here. Absence of a change event does not imply the vendor has never changed its policy.

Transparent risk scoreurgent

80 / 100

Time to milestone+50

This milestone passed 271 days ago.

Security coverage+20

The official security-support or end-of-life date has passed.

Customer criticality+5

You marked this product as medium.

Replacement readiness+5

No replacement has been recorded in your plan.

This transparent planning score is not a security assessment or compliance certification. Confirm critical decisions with the vendor.

Planning action

Confirm critical decisions with the vendor, identify affected assets, document a replacement or exception, and set planning checkpoints before the earliest relevant support deadline.

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