v1.14.0

What's Changed

• Release pr/1.13.0 for exporters by @DylanRussell in #550
• Add force_flush method to CloudLoggingExporter by @DylanRussell in #559
• Add deprecation warnings to exporter READMEs and update resource detector to be <1.15 by @DylanRussell in #561

Full Changelog: v1.13.0...v1.14.0