opentelemetry-otlp breaking changes

0.33.0

42 breaking changes, first published September 18, 2026.

• Removed experimental-grpc-retry
  Remove this feature flag from Cargo.toml; retries are now always built in. github.com
• Removed experimental-http-retry
  Remove this feature flag from Cargo.toml; retries are now always built in. github.com
• Removed HttpExporterBuilderSet.default
  Use the builder entry point, such as SpanExporter::builder().with_http(), instead of default(). github.com
• Removed NoExporterConfig
  Unused NoExporterConfig type removed in opentelemetry-otlp 0.33.0 github.com
• Removed opentelemetry_otlp::ExporterBuildError::FeatureRequiredForCompressionAlgorithm
  opentelemetry_otlp::ExporterBuildError::FeatureRequiredForCompressionAlgorithm was removed in opentelemetry-otlp 0.33.0 crates.io
• Removed opentelemetry_otlp::ExporterBuildError::InvalidConfig
  Configuration errors now use InvalidConfiguration. crates.io
• Removed opentelemetry_otlp::ExporterBuildError::InvalidUri
  Match the two remaining variants, InvalidConfiguration and InternalFailure, exhaustively. crates.io
• Removed opentelemetry_otlp::ExporterBuildError::NoHttpClient
  Missing HTTP client errors now use InvalidConfiguration. crates.io
• Removed opentelemetry_otlp::ExporterBuildError::ThreadSpawnFailed
  opentelemetry_otlp::ExporterBuildError::ThreadSpawnFailed was removed in opentelemetry-otlp 0.33.0 crates.io
• Removed opentelemetry_otlp::ExporterBuildError::UnsupportedCompressionAlgorithm
  opentelemetry_otlp::ExporterBuildError::UnsupportedCompressionAlgorithm was removed in opentelemetry-otlp 0.33.0 crates.io

And 32 more in this version.

Check your code

These are the changes. To see which of them reach your code, scan a public repository, or have your coding agent call check_code with your manifest or lockfile over MCP. The API reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys.