httpx Fix simple typo: conncurrent -> concurrent (Fix)

The Fix

Upgrade to version 0.13.0 or later.

Based on closed encode/httpx issue #792 · PR/commit linked

Open PR/Commit

@@ -108,7 +108,7 @@ async def test_streaming_response_holds_connection(server):
 async def test_multiple_concurrent_connections(server):
     """
-    Multiple conncurrent requests should open multiple conncurrent connections.
+    Multiple concurrent requests should open multiple concurrent connections.
     """

fix.md

Option A — Upgrade to fixed release\nUpgrade to version 0.13.0 or later.\nWhen NOT to use: This fix is not applicable if the typo does not affect functionality.\n\n

Why This Fix Works in Production

Trigger: Fix simple typo: conncurrent -> concurrent
Mechanism: A typo in the test file caused incorrect documentation of concurrent requests
Why the fix works: Fixes a simple typo in the test file, changing 'conncurrent' to 'concurrent'. (first fixed release: 0.13.0).

Why This Breaks in Prod

A typo in the test file caused incorrect documentation of concurrent requests

Proof / Evidence

GitHub issue: #792
Fix PR: https://github.com/encode/httpx/pull/793
First fixed release: 0.13.0
Reproduced locally: No (not executed)
Last verified: 2026-02-09
Confidence: 0.85
Did this fix it?: Yes (upstream fix exists)
Own content ratio: 0.69

Discussion

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

Jump to Sources Open on GitHub

“# Issue Type [x] Bug (Typo) # Steps to Replicate 1. Examine tests/dispatch/test_connection_pools.py. 2. Search for conncurrent. # Expected Behaviour 1. Should read concurrent.”

Issue thread · issue description · source

Failure Signature (Search String)

Fix simple typo: conncurrent -> concurrent

Error Message

Signature-only (no traceback captured)

error.txt

Error Message
-------------
Fix simple typo: conncurrent -> concurrent

Why It Broke

A typo in the test file caused incorrect documentation of concurrent requests

Fix Options (Details)

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

Upgrade to version 0.13.0 or later.

When NOT to use: This fix is not applicable if the typo does not affect functionality.

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/793

First fixed release: 0.13.0

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

When NOT to Use This Fix

This fix is not applicable if the typo does not affect functionality.

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.

Version Compatibility Table

Version	Status
0.13.0	Fixed

Related Issues

No related fixes found.

Cluster: httpx:other All hubs All clusters

Related clusters: Configuration error Data consistency Timeout

Sources

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