Sourced from opentelemetry-api's changelog.

Version 1.39.0/0.60b0 (2025-12-03)

• opentelemetry-api: Convert objects of any type other than AnyValue in attributes to string to be exportable (#4808)

• docs: Added sqlcommenter example (#4734)

• build: bump ruff to 0.14.1 (#4782)

• Add opentelemetry-exporter-credential-provider-gcp as an optional dependency to opentelemetry-exporter-otlp-proto-grpc and opentelemetry-exporter-otlp-proto-http (#4760)

• semantic-conventions: Bump to 1.38.0 (#4791)

• [BREAKING] Remove LogData and extend SDK LogRecord to have instrumentation scope (#4676)

• [BREAKING] Rename several classes from Log to LogRecord (#4647)

  Migration Guide:

  LogData has been removed. Users should update their code as follows:

  • For Log Exporters: Change from Sequence[LogData] to Sequence[ReadableLogRecord]

    # Before
    from opentelemetry.sdk._logs import LogData
    def export(self, batch: Sequence[LogData]) -> LogRecordExportResult:
        ...
    After
    from opentelemetry.sdk._logs import ReadableLogRecord
    def export(self, batch: Sequence[ReadableLogRecord]) -> LogRecordExportResult:
    ...

  • For Log Processors: Use ReadWriteLogRecord for processing, ReadableLogRecord for exporting

    # Before
    from opentelemetry.sdk._logs import LogData
    def on_emit(self, log_data: LogData):
        ...
    After
    from opentelemetry.sdk._logs import ReadWriteLogRecord, ReadableLogRecord
    def on_emit(self, log_record: ReadWriteLogRecord):
    # Convert to ReadableLogRecord before exporting
    readable = ReadableLogRecord(
    log_record=log_record.log_record,
    resource=log_record.resource or Resource.create({}),
    instrumentation_scope=log_record.instrumentation_scope,

... (truncated)

• dc0a9b3 Prepare release 1.39.0/0.60b0 (#4833)
• cd150c3 Fix changelog before the release (#4831)
• 382fa46 Mark events API/SDK as deprecated (#4654)
• 5307dd0 Fix errors on serialization of values that are not AnyValue in LogRecord attr...
• 8615ba0 Fix type checking for built in metric exporters (#4820)
• 62da90e Add lmolkova to approvers (#4812)
• 61bda60 Fix meeting and typos (#4817)
• 546e47b [logs-api/sdk] Rename several classes from Log to LogRecord (#4647)
• 5ddb8e7 [logs-sdk] Remove LogData and extend SDK LogRecord to have instrumentation sc...
• 20dedf5 Add gcp auth package as optional dependency to the HTTP/GRPC OTLP Exporters (...
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