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Canonical AI event

Prefect 3.8.8 drops Python 3.10 support.

Prefect 3.8.8 will be the last release supporting Python 3.10. It fixes a crash caused by invalid Retry-After headers.

6 Oct 20261 verified claims1 sources1 observations
What happened

The official source reports this update: 3.8.8 - I take my wildcards literally. This is the last release that will support Python 3.10 — future releases will require Python 3.11 or later.

Why it matters

This official update documents a development concerning 3.8.8 - I take my wildcards literally. Its practical significance depends on the scope and evidence stated by the source.

What to watch next

Read the official source update and verify its stated scope, evidence and timing before acting on it.

Connected knowledge

Entities affected by this event

Prefectsubject
Continue this topic
infrastructurePrefect releases 3.8.8.dev2 with updated dependencies and bug fixes.1 Oct 2026infrastructureNightly Development Release Adds Browser Tab Titles to Pages23 Sept 2026infrastructurePrefect updates Python 3.12 skip markers in test_output.22 Sept 2026infrastructurePrefect Shell Tests Fix Always-True Assertions in 3.8.7.dev419 Sept 2026infrastructureNightly Development Release: Tag names now inline and focusable in V2 UI18 Sept 2026infrastructurePrefect updates SQLite cache update scheduling in 3.8.6.dev512 Sept 2026
Evidence trail

Sources behind the event

Prefect official releases3.8.8 - I take my wildcards literally
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