Issues

• Prometheus exporter greedy regex in unit annotation stripping corrupts compound and ratio metric units

  open-telemetry/opentelemetry-python#5766 · Filter by author akshat-lakhera opened on Oct 10, 2026

• Multiple registrations of observable instrument not possible

  bug
  open-telemetry/opentelemetry-python#5743 · Filter by author anuraaga opened on Oct 5, 2026
  2

• Delta exponential histogram never goes back to the maximum scale after a wide-range interval

  open-telemetry/opentelemetry-python#5716 · Filter by author David-Wu1119 opened on Sep 30, 2026

• Add shutdown method to samplers

  feature-request
  Feature

  open-telemetry/opentelemetry-python#5713 · Filter by author tammy-baylis-swi opened on Sep 29, 2026
  3

• 1.45.0's stop-decoding-bytes-attributes change silently breaks downstream instrumentation that relied on the old coercion

  open-telemetry/opentelemetry-python#5700 · Filter by author manu-kerrigan opened on Sep 27, 2026
  1

• Prometheus exporter puts label values under the wrong label names when two instruments share a name

  bug
  open-telemetry/opentelemetry-python#5685 · Filter by author jbyers44 opened on Sep 25, 2026

• Align export_timeout_millis across SDK components

  exporterssdk
  open-telemetry/opentelemetry-python#5684 · Filter by author tammy-baylis-swi opened on Sep 24, 2026

• OTLP gRPC exporter never recovers from a wedged HTTP/2 stream: DEADLINE_EXCEEDED is retryable in name only, so the channel is never reinitialized

  open-telemetry/opentelemetry-python#5683 · Filter by author sebastien-glon-cko opened on Sep 23, 2026

• opentelemetry-configuration: add support for the OTLP exporter TLS configuration

  feature-request
  open-telemetry/opentelemetry-python#5670 · Filter by author herin049 opened on Sep 17, 2026
  

• [bug] PeriodicExportingMetricReader missing validation for export_timeout_millis <= 0

  bug
  open-telemetry/opentelemetry-python#5655 · Filter by author Dotify71 opened on Sep 13, 2026
  1

• [bug] BatchSpanProcessor missing validation for export_timeout_millis <= 0

  bug
  open-telemetry/opentelemetry-python#5648 · Filter by author Dotify71 opened on Sep 10, 2026
  1

• Nothing detects a test that leaks a PeriodicExportingMetricReader ticker thread, and four tests leak one today

  open-telemetry/opentelemetry-python#5640 · Filter by author ocelotl opened on Sep 8, 2026

• Tests in test_metric_reader_storage.py assert on process-global mock state instead of on the storage under test

  open-telemetry/opentelemetry-python#5638 · Filter by author ocelotl opened on Sep 8, 2026

• Default-view fallback stream is never checked for conflicting metric identities (warning is order-dependent)

  bug
  open-telemetry/opentelemetry-python#5629 · Filter by author Eason09053360 opened on Sep 5, 2026

• View identity-conflict warning never fires when the conflicting views match the same instrument

  bug
  open-telemetry/opentelemetry-python#5627 · Filter by author Eason09053360 opened on Sep 5, 2026

• SpanProcessor.on_end exceptions escape cleanup and replace application exceptions

  bug
  open-telemetry/opentelemetry-python#5624 · Filter by author s-banach opened on Sep 4, 2026

• opentelemetry-sdk: stop coercing instrumentation options once instrumentors read ConfigProvider

  open-telemetry/opentelemetry-python#5619 · Filter by author ocelotl opened on Sep 3, 2026

• first issue

  feature-request
  open-telemetry/opentelemetry-python#5617 · Filter by author SenseAli opened on Sep 2, 2026
  2

• Span is already immutable during OnEnding span processor callbacks, violating the spec

  open-telemetry/opentelemetry-python#5614 · Filter by author henry3260 opened on Sep 2, 2026

• Unguarded str()/repr() calls crash the app when an attribute key/value's __str__/__repr__ raises

  bug
  open-telemetry/opentelemetry-python#5597 · Filter by author piyush182004 opened on Aug 29, 2026
  3

• Samplers never receive the parent's tracestate, and the composite sampler erases it

  bug
  open-telemetry/opentelemetry-python#5578 · Filter by author dwin-gharibi opened on Aug 23, 2026
  1

• PeriodicExportingMetricReader discards its shutdown timeout

  bug
  open-telemetry/opentelemetry-python#5574 · Filter by author dwin-gharibi opened on Aug 23, 2026
  2

• Concurrent multi-processors never flush at interpreter exit

  bug
  open-telemetry/opentelemetry-python#5568 · Filter by author dwin-gharibi opened on Aug 23, 2026
  1

• W3C Baggage propagator uses form encoding instead of percent encoding

  bug
  open-telemetry/opentelemetry-python#5566 · Filter by author dwin-gharibi opened on Aug 23, 2026
  1

• Self-referential attribute value crashes the instrumented application with RecursionError

  bug
  open-telemetry/opentelemetry-python#5564 · Filter by author dwin-gharibi opened on Aug 23, 2026