v0.8.0 Beta

🚀 New components 🚀

• groupbytrace processor that waits for a trace to be completed (#1362)

💡 Enhancements 💡

• Migrate zipkin receiver/exporter to the new interfaces (#1484)
• Migrate prometheus receiver/exporter to the new interfaces (#1477, #1515)
• Add new FactoryUnmarshaler support to all components, deprecate old way (#1468)
• Update fileexporter to write data in OTLP (#1488)
• Add extension factory helper (#1485)
• Host scrapers: Use same scrape time for all data points coming from same source (#1473)
• Make logs SeverityNumber publicly available (#1496)
• Add recently included conventions for k8s and container resources (#1519)
• Add new config StartTimeMetricRegex to prometheus receiver (#1511)
• Convert Zipkin receiver and exporter to use OTLP (#1446)

🧰 Bug fixes 🧰

• Infer OpenCensus resource type based on OpenTelemetry's semantic conventions (#1462)
• Fix log adapter in prometheus receiver (#1493)
• Avoid frequent errors for process telemetry on Windows (#1487)