HAProxy known bugs for maintenance branch 2.4 :  10 

This is maintenance branch 2.4 whose latest version is 2.4.4. 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. In short, if you are running any 2.4 version other than 2.4.4, you're running with known bugs.

Quick links

Versions available in this branch

This branch contains the following releases :

DateVersionComment
2021-09-072.4.4 ⇐ last
2021-08-172.4.3 
2021-07-072.4.2 
2021-06-172.4.1 
2021-05-142.4.0 

Fixes for known bugs pending in this branch since the last release (2.4.4)

These fixes have already been queued for the next 2.4 release but no version was released with them yet. Note that fixes are backported several at a time from the development branch to maintenance branches, and the absence of a fix here doesn't mean none will be issued soon.

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 the latest version of this branch by category :

TotalCRITICALMAJORMEDIUMMINOR
10 0 0 3 7

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

Merge dateSubject - Severity (minor, medium, major, critical)
2021-09-16BUG/MINOR: compat: make sure __WORDSIZE is always defined
2021-09-10BUG/MEDIUM: stream-int: Don't block SI on a channel policy if EOI is reached
2021-09-10BUG/MEDIUM: mux-h1: Remove "Upgrade:" header for requests with payload
2021-09-10BUG/MINOR: systemd: ExecStartPre must use -Ws
2021-09-10BUG/MINOR: filters: Set right FLT_END analyser depending on channel
2021-09-10BUG/MINOR: filters: Always set FLT_END analyser when CF_FLT_ANALYZE flag is set
2021-09-10BUG/MEDIUM: http-ana: Reset channels analysers when returning an error
2021-09-10BUG/MINOR: stream: Don't release a stream if FLT_END is still registered
2021-09-08BUG/MINOR: lua: Don't yield in channel.append() and channel.set()
2021-09-08BUG/MINOR: lua: Yield in channel functions only if lua context can yield

Known bugs fixed in the development branch after the last commit in this branch

It is important to understand that not all of these commits are necessarily relevant to this version, but clicking on them will show the bug description. All fixes are made first in the development branch and then backported to the maintenance branches. This ensures no fix is lost when upgrading. If a fix was marked for backporting to this branch and is not there yet, it's likely that it is still missing. Do not hesitate to ask on the haproxy mailing list if you feel like a fix has been skipped.

DateSubject
2021-09-17BUG/MINOR: cli/payload: do not search for args inside payload
2021-09-16BUG/MINOR: connection: prevent null deref on mux cleanup task allocation
2021-09-16BUG/MINOR: tcpcheck: Improve LDAP response parsing to fix LDAP check
2021-09-16BUG/MAJOR: mux-h1: Don't eval input data if an error was reported

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