Added

• Add force_flush method to span processors #358
• Add timeout for force_flush and shutdown #362

Changed

• Implement Display trait for Key and Value types #353
• Remove Option from Array values #359
• Update ShouldSample's parent parameter to be Context #368
• Consolidate error types in trace module into TraceError #371
• Add #[must_use] to uninstall structs #372
• Move 3rd party propagators and merge exporter into sdk::export #375
• Add instrumentation version to instrument config #392
• Use instrumentation library in metrics #393
• start_from_context renamed to start_with_context #399
• Removed build_with_context as full context is now stored in builder #399
• SpanBuilder's with_parent renamed to with_parent_context #399

Fixed

• Fix parent based sampling in tracer #354
• StatusCode enum value ordering #377
• Counter adding the delta from last collection #395
• HistogramAggregator returning sum vs count #398