The Fix
pip install redis==7.1.0
Based on closed redis/redis-py issue #1296 · 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%.
@@ -14,6 +14,8 @@
the socket such that there are zero copies made of the underlying data
during command packing. Thanks @Cody-G. #1265, #1285
+ * HSET command now can accept multiple pairs. HMSET has been marked as
+ deprecated now. Thanks to @laixintao #1271
* 3.4.1
Option A — Upgrade to fixed release\npip install redis==7.1.0\nWhen NOT to use: This fix should not be used if the documentation is already accurate.\n\n
Why This Fix Works in Production
- Trigger: That deprecation incorrectly shows up in the 3.4.1 section of the release notes
- Mechanism: Corrects the release notes regarding the deprecation of the `hmset` command, which was incorrectly attributed to version 3.4.1.
- Why the fix works: Corrects the release notes regarding the deprecation of the `hmset` command, which was incorrectly attributed to version 3.4.1. (first fixed release: 7.1.0).
- 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
- Production symptom (often without a traceback): That deprecation incorrectly shows up in the 3.4.1 section of the release notes (https://github.com/andymccurdy/redis-py/blob/e57daf554d6a4a66373de6605d13fb7a185852e9/CHANGES#L33-L34), even though it was merged in post-3.4.1:
Proof / Evidence
- GitHub issue: #1296
- Fix PR: https://github.com/redis/redis-py/pull/1297
- First fixed release: 7.1.0
- Reproduced locally: No (not executed)
- Last verified: 2026-02-09
- Confidence: 0.85
- Did this fix it?: Yes (upstream fix exists)
- Own content ratio: 0.66
Discussion
High-signal excerpts from the issue thread (symptoms, repros, edge-cases).
“Sorry, my fault. I will open a PR fix to this.”
Failure Signature (Search String)
- That deprecation incorrectly shows up in the 3.4.1 section of the release notes
Copy-friendly signature
Failure Signature
-----------------
That deprecation incorrectly shows up in the 3.4.1 section of the release notes (https://github.com/andymccurdy/redis-py/blob/e57daf554d6a4a66373de6605d13fb7a185852e9/CHANGES#L33-L34), even though it was merged in post-3.4.1:
Error Message
Signature-only (no traceback captured)
Error Message
-------------
That deprecation incorrectly shows up in the 3.4.1 section of the release notes (https://github.com/andymccurdy/redis-py/blob/e57daf554d6a4a66373de6605d13fb7a185852e9/CHANGES#L33-L34), even though it was merged in post-3.4.1:
What Broke
Users may encounter confusion regarding the deprecation of `hmset` due to incorrect documentation.
Fix Options (Details)
Option A — Upgrade to fixed release Safe default (recommended)
pip install redis==7.1.0
Use when you can deploy the upstream fix. It is usually lower-risk than long-lived workarounds.
Fix reference: https://github.com/redis/redis-py/pull/1297
First fixed release: 7.1.0
Last verified: 2026-02-09. Validate in your environment.
When NOT to Use This Fix
- This fix should not be used if the documentation is already accurate.
Did This Fix Work in Your Case?
Quick signal helps us prioritize which fixes to verify and improve.
Prevention
- Capture the exact failing error string in logs and tests so you can reproduce via a minimal script.
- Pin production dependencies and upgrade only with a reproducible test that hits the failing path.
Version Compatibility Table
| Version | Status |
|---|---|
| 7.1.0 | Fixed |
Related Issues
No related fixes found.
Sources
We don’t republish the full GitHub discussion text. Use the links above for context.