v2.1.0

Added

• Support for telemetry-to-caas kind for CaaS (Collector as a Service). By default, mTLS certificates are provisioned and rotated automatically via the Zero Trust Identity (ZTI) sidecar; alternatively, mTLS certificates can be provided manually via x509 credentials.
• Queue worker transactions are traced as coherent <service> - tx spans under the cds.spawn - run task root, instead of orphaned per-call spans
• The span processor is now configurable via cds.requires.telemetry.tracing.processor = { kind, config? } (BatchSpanProcessor or SimpleSpanProcessor); defaults to BatchSpanProcessor, and to SimpleSpanProcessor in the [development] profile
• Exported log records now carry the tenant as attribute sap.tenancy.tenant_id (when available from cds.context), aligning log metadata with traces and metrics

Fixed

• No longer crashes on startup when Dynatrace OneAgent is active (DT_NODE_PRELOAD_OPTIONS set, kind *-to-dynatrace, no @opentelemetry/exporter-trace-otlp-proto dependency): the tracing factory no longer builds a tracer provider with an undefined span processor (which crashed on the first span in MultiSpanProcessor.onStart). On this path it now registers a recording tracer provider without an exporter, so the CDS spans exist for OneAgent's in-process OpenTelemetry capture to pick up (no export by us, no duplicates)
• Logging no longer recurses through @opentelemetry/sdk-logs 0.221's export path: the log-processor construction now adapts to the installed sdk-logs version (0.221+ takes an { exporter } options object, earlier versions the positional exporter), and a re-entrancy guard was added to the cds.log.format interception
• Cloud SDK outbound requests are traced again (patch getter-only @sap-cloud-sdk/http-client exports via Object.defineProperty)
• Raw SQL no longer leaks into HANA INSERT prepare span names (now uses operation + table, matching SELECT)
• db.client.response.returned_rows is recorded again for INSERT/UPDATE/DELETE on HANA when a cached prepared statement is reused (the execute span carries no SQL text in that case, which previously suppressed the attribute)
• Queue *_storage_time_in_seconds metrics are now correct on HANA (timezone-naive min/max timestamp aggregates were parsed as local time, skewing the values by the machine's UTC offset)