httpx More concise Timeout parameters. (Fix)

The Fix

Upgrade to version 0.14.0 or later.

Based on closed encode/httpx issue #1093 · PR/commit linked

Production note: Most teams hit this during upgrades or environment changes. Roll out with a canary and smoke critical endpoints (health, OpenAPI/docs) before 100%.

Open PR/Commit

@@ -374,16 +374,16 @@ HTTPX also allows you to specify the timeout behavior in more fine grained detai
 **read**, **write**, and **pool** timeouts.
 
-* The **connect timeout** specifies the maximum amount of time to wait until
+* The **connect** timeout specifies the maximum amount of time to wait until
 a connection to the requested host is established. If HTTPX is unable to connect

fix.md

Option A — Upgrade to fixed release\nUpgrade to version 0.14.0 or later.\nWhen NOT to use: This fix should not be used if maintaining backward compatibility with older Timeout parameter styles is required.\n\n

Why This Fix Works in Production

Trigger: More concise Timeout parameters.
Mechanism: The Timeout parameters in HTTPX were verbose and needed a more concise representation
Why the fix works: Switches to a more concise style for Timeout parameters in HTTPX, addressing issue #1093. (first fixed release: 0.14.0).

Production impact:

If left unfixed, the same config can fail only in production (env differences), causing startup failures or partial feature outages.

Why This Breaks in Prod

The Timeout parameters in HTTPX were verbose and needed a more concise representation
Production symptom (often without a traceback): More concise Timeout parameters.

Proof / Evidence

GitHub issue: #1093
Fix PR: https://github.com/encode/httpx/pull/1111
First fixed release: 0.14.0
Reproduced locally: No (not executed)
Last verified: 2026-02-09
Confidence: 0.85
Did this fix it?: Yes (upstream fix exists)
Own content ratio: 0.65

Discussion

High-signal excerpts from the issue thread (symptoms, repros, edge-cases).

Jump to Sources Open on GitHub

“Follow up to #1085 Since we're on out final 1.0 polishing run-in I think we should place the httpx.Timeout(5.0, connect_timeout=60.0) style on a gentle deprecation with 0.14, in favour of the more concise style of httpx.Timeout(5.0, connect”

Issue thread · issue description · source

Failure Signature (Search String)

More concise Timeout parameters.
Since we're on out final 1.0 polishing run-in I think we should place the `httpx.Timeout(5.0, connect_timeout=60.0)` style on a gentle deprecation with 0.14, in favour of the more

Copy-friendly signature

signature.txt

Failure Signature
-----------------
More concise Timeout parameters.
Since we're on out final 1.0 polishing run-in I think we should place the `httpx.Timeout(5.0, connect_timeout=60.0)` style on a gentle deprecation with 0.14, in favour of the more concise style of `httpx.Timeout(5.0, connect=60.0)`.

Error Message

Signature-only (no traceback captured)

error.txt

Error Message
-------------
More concise Timeout parameters.
Since we're on out final 1.0 polishing run-in I think we should place the `httpx.Timeout(5.0, connect_timeout=60.0)` style on a gentle deprecation with 0.14, in favour of the more concise style of `httpx.Timeout(5.0, connect=60.0)`.

What Broke

Users experienced confusion and potential errors due to deprecated Timeout parameter styles.

Why It Broke

The Timeout parameters in HTTPX were verbose and needed a more concise representation

Fix Options (Details)

Option A — Upgrade to fixed release Safe default (recommended)

Upgrade to version 0.14.0 or later.

When NOT to use: This fix should not be used if maintaining backward compatibility with older Timeout parameter styles is required.

Use when you can deploy the upstream fix. It is usually lower-risk than long-lived workarounds.

Fix reference: https://github.com/encode/httpx/pull/1111

First fixed release: 0.14.0

Last verified: 2026-02-09. Validate in your environment.

When NOT to Use This Fix

This fix should not be used if maintaining backward compatibility with older Timeout parameter styles is required.

Did This Fix Work in Your Case?

Quick signal helps us prioritize which fixes to verify and improve.

Prevention

Add a CI check that diffs key outputs after upgrades (OpenAPI schema snapshots, JSON payload shapes, CLI output).
Upgrade behind a canary and run integration tests against the canary before 100% rollout.
Make timeouts explicit and test them (unit + integration) to avoid silent behavior changes.
Instrument retries (attempt count + reason) and alert on spikes to catch dependency slowdowns.

Version Compatibility Table

Version	Status
0.14.0	Fixed

Related Issues

No related fixes found.

Cluster: httpx:configuration-error All hubs All clusters

Related clusters: Data consistency Other Timeout

Sources

We don’t republish the full GitHub discussion text. Use the links above for context.