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Data Plane API event listener fails with backported Debian-packaged HAProxy. #410
Description
Hello,
using package from https://haproxy.debian.net/
- Debian 13
- Haproxy 3.3-stable
The packages have this form : 3.3.x-y~bpo13+1
It's also the version with "show info".
echo "show info" | sudo socat - /run/haproxy/admin.sock
Name: HAProxy
Version: 3.3.10-1~bpo13+1
Release_date: 2026/05/11It results with:
level=error msg="Failed to start HAProxy's event listener:invalid semantic version" when launching dataplaneapi as 3.3.x-y~bpo13+1 is not semver compliant for dataplaneapi.
Activity
vincentbernat commentedon Jun 2, 2026
Semantic versioning is not really a standard. The tilde is a known weakness but it predates by more a decade this convention (and is a shared convention by both Debian and RedHat). The fix may not be straightforward as HAProxy/semver is using the hyphen in a different way (3.4-dev14 is before 3.4.0, while this is the reverse for Debian/RedHat).