HAProxy known bugs for version v3.1.8 (maintenance branch 3.1) :  12 

This version (3.1.8) is a release belonging to maintenance branch 3.1 whose latest version is 3.1.8. 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
2025-06-023.1.8 ⇐ yours ⇐ last
2025-04-173.1.7 
2025-03-203.1.6 
2025-02-203.1.5 
2025-02-193.1.4 
2025-01-293.1.3 
2025-01-083.1.2 
2024-12-113.1.1 
2024-11-263.1.0 

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

These fixes have already been queued for a more recent 3.1 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
12 0 0 7 5

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

Merge dateSubject - Severity (minor, medium, major, critical)
2025-07-22BUG/MEDIUM: ssl/clienthello: ECDSA with ssl-max-ver TLSv1.2 and no ECDSA ciphers
2025-06-17BUG/MEDIUM: check: Set SOCKERR by default when a connection error is reported
2025-06-17BUG/MEDIUM: cli: Don't consume data if outbuf is full or not available
2025-06-17BUG/MINOR: http-ana: Properly handle keep-query redirect option if no QS
2025-06-17BUG/MINOR: config/server: reject QUIC addresses
2025-06-17BUG/MINIR: h1: Fix doc of 'accept-unsafe-...-request' about URI parsing
2025-06-17BUG/MEDIUM: fd: Use the provided tgid in fd_insert() to get tgroup_info
2025-06-17BUG/MINOR: quic: Missing SSL session object freeing
2025-06-17BUG/MINOR: mux-spop: Fix null-pointer deref on SPOP stream allocation failure
2025-06-17BUG/MEDIUM: check: Requeue healthchecks on I/O events to handle check timeout
2025-06-02BUG/MEDIUM: h1/h2/h3: reject forbidden chars in the Host header field
2025-06-02BUG/MEDIUM: h2/h3: reject some forbidden chars in :authority before reassembly

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