v3.4.0

What's Changed

• Improve metrics bind error message by @joel0 in #40
• Provide metrics::add_extra_producer() to enable external metrics [v3.x] by @bobrik in #71

New Contributors

• @joel0 made their first contribution in #40
• @bobrik made their first contribution in #71

Full Changelog: v3.3.0...v3.4.0