HAProxy known bugs for version v2.6.22 (maintenance branch 2.6) :  16 

This version (2.6.22) is a release belonging to maintenance branch 2.6 whose latest version is 2.6.22. If your version is not the last one in the maintenance branch, you are missing fixes for known bugs, and by not updating you are needlessly taking the responsibility for the risk of unexpected service outages and exposing your web site to possible security issues.

The HAProxy development team takes a great care of maintaining stable versions so that all users can apply bug fixes without having to take the risk of upgrading to a new branch. In turn users are expected to apply the fixes when the development team estimates that they were worth being backported to stable branches.

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Other versions in the same branch

This branch contains the following releases :

DateVersionComment
2025-04-222.6.22 ⇐ yours ⇐ last
2025-01-292.6.21 
2024-11-082.6.20 
2024-09-192.6.19 
2024-06-182.6.18 
2024-04-052.6.17 
2023-12-132.6.16 
2023-08-092.6.15 
2023-06-092.6.14 
2023-05-022.6.13 
2023-03-282.6.12 
2023-03-172.6.11 
2023-03-102.6.10 
2023-02-142.6.9 
2023-01-242.6.8 
2022-12-022.6.7 
2022-09-222.6.6 
2022-09-032.6.5 
2022-08-222.6.4 
2022-08-192.6.3 
2022-07-222.6.2 
2022-06-212.6.1 
2022-05-312.6.0 

Known bugs affecting this version, and already fixed in the maintenance branch

These fixes have already been queued for a more recent 2.6 version. Some of them might have already been released in a more recent version than yours, and other ones might still be pending in the maintenance branch for a future release. The list may be empty if you're already on the latest version and no new fix was backported.

Bugs are almost always tagged with a severity (some people forget the severity tag when the bug is minor). The following severities are used :

Total known bugs in this version by category :

TotalCRITICALMAJORMEDIUMMINOR
16 0 0 0 16

Click on the subjects below to get the full description of the bug :

Merge dateSubject - Severity (minor, medium, major, critical)
2025-05-28BUG/MINOR: limits: compute_ideal_maxconn: don't cap remain if fd_hard_limit=0
2025-05-28BUG/MINOR: h3: Set HTX flags corresponding to the scheme found in the request
2025-05-28BUG/MINOR: mux-h2: Reset streams with NO_ERROR code if full response was already sent
2025-05-28BUG/MINOR: sink: detect and warn when using "send-proxy" options with ring servers
2025-05-28BUG/MINOR: hlua: Fix Channel:data() and Channel:line() to respect documentation
2025-05-28BUG/MINOR: cli: fix too many args detection for commands
2025-05-28BUG/MINOR: quic: reject invalid max_udp_payload size
2025-05-28BUG/MINOR: quic: fix TP reject on invalid max-ack-delay
2025-05-28BUG/MINOR: quic: use proper error code on invalid received TP value
2025-05-28BUG/MINOR: quic: reject retry_source_cid TP on server side
2025-05-28BUG/MINOR: quic: use proper error code on invalid server TP
2025-05-28BUG/MINOR: quic: use proper error code on missing CID in TPs
2025-05-28BUG/MINOR: mux-h1: Fix trace message in h1_detroy() to not relay on connection
2025-05-28BUG/MINOR: mux-h1: Don't pretend connection was released for TCP>H1>H2 upgrade
2025-05-28BUG/MINOR: dns: add tempo between 2 connection attempts for dns servers
2025-05-28BUG/MINOR: cli: Issue an error when too many args are passed for a command

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