Release v3.17.0 (#1117)

Author: alexmojaki

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Release Notes
 
+## [v3.17.0] (2025-06-03)
+
+* LangChain instrumentation via LangSmith  by @alexmojaki in [#1084](https://github.com/pydantic/logfire/pull/1084)
+* MCP OTel context propagation by @samuelcolvin in [#1103](https://github.com/pydantic/logfire/pull/1103)
+* Add `capfire.get_collected_metrics()` by @alexmojaki in [#1116](https://github.com/pydantic/logfire/pull/1116)
+
 ## [v3.16.2] (2025-06-03)
 
 * Fixes for OpenAI Responses API and Agents SDK by @alexmojaki in [#1092](https://github.com/pydantic/logfire/pull/1092),  [#1093](https://github.com/pydantic/logfire/pull/1093), [#1094](https://github.com/pydantic/logfire/pull/1094), and [#1095](https://github.com/pydantic/logfire/pull/1095)
@@ -714,3 +720,4 @@ First release from new repo!
 [v3.16.0]: https://github.com/pydantic/logfire/compare/v3.15.1...v3.16.0
 [v3.16.1]: https://github.com/pydantic/logfire/compare/v3.16.0...v3.16.1
 [v3.16.2]: https://github.com/pydantic/logfire/compare/v3.16.1...v3.16.2
+[v3.17.0]: https://github.com/pydantic/logfire/compare/v3.16.2...v3.17.0

logfire-api/logfire_api/_internal/exporters/processor_wrapper.pyi

@@ -1,5 +1,6 @@
-from ..constants import ATTRIBUTES_LOG_LEVEL_NUM_KEY as ATTRIBUTES_LOG_LEVEL_NUM_KEY, ATTRIBUTES_MESSAGE_KEY as ATTRIBUTES_MESSAGE_KEY, ATTRIBUTES_MESSAGE_TEMPLATE_KEY as ATTRIBUTES_MESSAGE_TEMPLATE_KEY, LEVEL_NUMBERS as LEVEL_NUMBERS, log_level_attributes as log_level_attributes
+from ..constants import ATTRIBUTES_JSON_SCHEMA_KEY as ATTRIBUTES_JSON_SCHEMA_KEY, ATTRIBUTES_LOG_LEVEL_NUM_KEY as ATTRIBUTES_LOG_LEVEL_NUM_KEY, ATTRIBUTES_MESSAGE_KEY as ATTRIBUTES_MESSAGE_KEY, ATTRIBUTES_MESSAGE_TEMPLATE_KEY as ATTRIBUTES_MESSAGE_TEMPLATE_KEY, LEVEL_NUMBERS as LEVEL_NUMBERS, log_level_attributes as log_level_attributes
 from ..db_statement_summary import message_from_db_statement as message_from_db_statement
+from ..json_schema import JsonSchemaProperties as JsonSchemaProperties, attributes_json_schema as attributes_json_schema
 from ..scrubbing import BaseScrubber as BaseScrubber
 from ..utils import ReadableSpanDict as ReadableSpanDict, is_asgi_send_receive_span_name as is_asgi_send_receive_span_name, is_instrumentation_suppressed as is_instrumentation_suppressed, span_to_dict as span_to_dict, truncate_string as truncate_string
 from .wrapper import WrapperSpanProcessor as WrapperSpanProcessor

logfire-api/logfire_api/_internal/integrations/mcp.pyi

@@ -1,4 +1,5 @@
 from logfire import LevelName as LevelName, Logfire as Logfire
 from logfire._internal.utils import handle_internal_errors as handle_internal_errors
+from logfire.propagate import attach_context as attach_context, get_context as get_context
 
-def instrument_mcp(logfire_instance: Logfire): ...
+def instrument_mcp(logfire_instance: Logfire, propagate_otel_context: bool): ...

logfire-api/logfire_api/_internal/main.pyi

@@ -401,8 +401,13 @@ class Logfire:
                 modules in `sys.modules` (i.e. modules that have already been imported) match the modules to trace.
                 Set to `'warn'` to issue a warning instead, or `'ignore'` to skip the check.
         """
-    def instrument_mcp(self) -> None:
-        """Instrument [MCP](https://modelcontextprotocol.io/) requests such as tool calls."""
+    def instrument_mcp(self, *, propagate_otel_context: bool = True) -> None:
+        """Instrument [MCP](https://modelcontextprotocol.io/) requests such as tool calls.
+
+        Args:
+            propagate_otel_context: Whether to enable propagation of the OpenTelemetry context.
+                Set to False to prevent setting extra fields like `traceparent` on the metadata of requests.
+        """
     def instrument_pydantic(self, record: PydanticPluginRecordValues = 'all', include: Iterable[str] = (), exclude: Iterable[str] = ()) -> None:
         """Instrument Pydantic model validations.
 

logfire-api/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "logfire-api"
-version = "3.16.2"
+version = "3.17.0"
 description = "Shim for the Logfire SDK which does nothing unless Logfire is installed"
 authors = [
     { name = "Pydantic Team", email = "[email protected]" },

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "logfire"
-version = "3.16.2"
+version = "3.17.0"
 description = "The best Python observability tool! 🪵🔥"
 requires-python = ">=3.8"
 authors = [