Changed #

• Removed intl dependency: Replaced custom date formatting with built-in DateTime.toIso8601String() method
  • Removed intl package dependency to reduce package footprint
  • Updated timestamp generation in Event, FaroLog, FaroException, and Measurement models
  • Uses standard ISO 8601 format via Dart's native DateTime.toIso8601String() method
  • Maintains compatibility while eliminating external dependency

Fixed #

• SDK name consistency across telemetry types: Updated SDK identification to use consistent naming

  • Changed hardcoded 'rum-flutter' SDK name to use FaroConstants.sdkName for consistency with OpenTelemetry traces
  • Maintains backend-compatible version '1.3.5' for proper web SDK version validation
  • Added actual Faro Flutter SDK version to session attributes as 'faro_sdk_version' for tracking real SDK version

• FaroZoneSpanManager span status preservation: Fixed issue where manually set span statuses were overridden by automatic status setting

  • Added statusHasBeenSet property to Span interface to track when status has been manually set
  • Updated FaroZoneSpanManager.executeWithSpan() to respect manually set span statuses for both success and error cases
  • Prevents overriding of custom span statuses (e.g., business logic errors) when code executes without throwing exceptions
  • Maintains existing behavior for spans that haven't had their status manually set
  • Resolves issue #86: FaroZoneSpanManager overrides manually set span statuses on success

Changed #

• BREAKING: Package structure refactoring to follow Flutter plugin conventions: Reorganized the package to align with Flutter/Dart ecosystem standards and best practices

  • Breaking Change: Main entry point changed from faro_sdk.dart to faro.dart

    • The package now follows the standard lib/<package_name>.dart convention
    • Removed lib/faro_sdk.dart file entirely
    • lib/faro.dart is now the single main entry point with selective barrel exports

  • Migration: Update your imports to use the new main entry point

    // Before
    import 'package:faro/faro_sdk.dart';
    
    // After
    import 'package:faro/faro.dart';
    

  • Architecture Improvements:

    • Moved core Faro class implementation from lib/faro.dart to lib/src/faro.dart
    • lib/faro.dart now serves as a clean barrel export file exposing only public APIs
    • All implementation details properly organized under lib/src/ directory
    • Clear separation between public API surface and private implementation
    • Follows established Flutter ecosystem conventions used by popular packages like Provider, BLoC, and Dio

  • Benefits:

    • Cleaner API boundaries: Clear distinction between public and private APIs
    • Better maintainability: Implementation details can evolve without affecting public interface
    • Consistent developer experience: Matches patterns developers expect from other Flutter packages
    • Future-proof: Enables easier API evolution and versioning
    • Community alignment: Follows official Flutter/Dart documentation recommendations

  • No functionality changes: All existing public APIs remain the same, only import paths have changed

Added #

• Type-Safe Log Level API: New LogLevel enum for improved logging reliability and developer experience

  • Introduced LogLevel enum with values: trace, debug, info, log, warn, error
  • Aligns with Grafana Faro Web SDK for cross-platform consistency
  • Includes fromString() method for backward compatibility, supporting both 'warn' and 'warning' variants

• Enhanced Tracing and Span API: Major improvements to distributed tracing capabilities

  • New startSpan<T>() method for automatic span lifecycle management with callback-based execution
  • New startSpanManual() method for manual span lifecycle management when precise control is needed
  • New getActiveSpan() method to access the currently active span from anywhere in the execution context
  • Zone-based span context management ensures proper parent-child relationships across async boundaries
  • Automatic session ID injection - all spans now include both session_id and session.id attributes
  • Improved error handling with automatic span status updates when exceptions occur
  • Enhanced span status tracking with proper OpenTelemetry status code mapping
  • Support for custom parent span specification to create explicit span hierarchies
  • Comprehensive documentation with detailed examples for common tracing patterns

• Centralized Session Management: New SessionIdProvider for consistent session handling across the SDK

  • Dedicated session ID generation and management
  • Better integration with tracing system for session context propagation
  • Factory pattern for testable session management

• SDK Constants Management: New centralized constants system

  • Added FaroConstants class for SDK version and name management
  • Better version tracking and consistency across the codebase

• BREAKING: Synchronous API for telemetry methods: Refactored telemetry methods to remove unnecessary async patterns for improved performance and developer experience

  • Breaking Change: The following methods changed from Future<void>? to void:

    • pushEvent() - Send custom events
    • pushLog() - Send custom logs
    • pushError() - Send custom errors
    • pushMeasurement() - Send custom measurements
    • markEventEnd() - Mark event completion

  • Migration: Remove await keywords from calls to these methods as they are now synchronous

    // Before
    await Faro().pushEvent('event_name');
    await Faro().pushLog('message', level: LogLevel.info);
    
    // After
    Faro().pushEvent('event_name');
    Faro().pushLog('message', level: LogLevel.info);
    

  • Benefits:

    • Improved performance by eliminating unnecessary async overhead
    • Cleaner API that better reflects the synchronous nature of these operations
    • Reduced complexity in application code

  • Internal Architecture: Introduced BatchTransportFactory singleton pattern for better dependency management and testing

• BREAKING: pushLog API requires LogLevel enum: Enhanced logging API for better type safety and consistency

  • Breaking Change: pushLog() now requires a LogLevel parameter instead of optional String?
  • Migration: Replace level: "warn" with level: LogLevel.warn in your pushLog calls
  • Benefit: Eliminates typos in log levels and provides better IDE support
  • Compatibility: Existing string-based log levels in internal code updated to use LogLevel enum
  • Documentation: All examples and documentation updated to reflect the new API

• Tracing Architecture Refactoring: Complete redesign of the internal tracing system

  • Replaced legacy tracer.dart and tracer_provider.dart with new FaroTracer implementation
  • New FaroZoneSpanManager for robust zone-based span context management
  • Improved Span class with cleaner API and better OpenTelemetry integration
  • Enhanced span creation and management with proper resource attribution
  • Better separation of concerns between tracing components
  • Zone-based implementation ensures proper parent-child relationships across async boundaries
  • Enhanced developer experience with multiple tracing approaches for different use cases
  • Better integration between tracing and other SDK components

• Session Management: Extracted session logic from distributed components

  • Removed deprecated generate_session.dart utility
  • Centralized session management in dedicated provider
  • Improved testability and maintainability of session-related functionality

Added #

• Enhanced HTTP tracing attributes: HTTP spans now include additional attributes for better observability
  • Added http.request_size attribute with request content length
  • Added http.response_size attribute with response content length
  • Added http.content_type attribute with response content type
  • Provides more comprehensive HTTP request/response metadata for monitoring
• Session attributes in OpenTelemetry traces: Tracer resources now automatically include session attributes
  • Session metadata is propagated to all OpenTelemetry spans
  • Enables correlation of traces with user sessions and custom session data
  • Supports dynamic session attribute values (strings, numbers, booleans, objects)
  • Added comprehensive test coverage for DartOtelTracerResourcesFactory
• Human-readable timestamps for Android crashes: Added readable timestamp formatting for crash reports
  • Crash context now includes both original Unix epoch timestamp and human-readable ISO 8601 format
  • Added timestamp_readable_utc field alongside existing timestamp field
  • Timestamps converted to UTC ISO 8601 format (e.g., "2025-06-04T23:49:20.296Z")
  • Includes new TimestampExtension utility for reusable timestamp conversion
  • Improves debugging experience with easily interpretable crash timestamps
  • Resolves issue #53: Add human readable timestamp for Android crashes
• Trace event duration: Added duration information to trace events
  • Events now include duration_ns attribute with span duration in nanoseconds
  • Duration calculated as endTime - startTime when both timestamps are valid
  • Improves observability by providing timing information for traced operations
  • Resolves issue #23: Add duration to Faro events

Fixed #

• Span event naming: Fixed incorrect event names for tracing spans
  • HTTP spans now correctly use faro.tracing.fetch event name
  • Non-HTTP spans use span.{name} format for better event categorization
  • Added logic to detect HTTP spans based on http.scheme or http.method attributes
  • Resolves issue #41: Incorrect span event names being sent to collector
• Event data URL formatting: Fixed inconsistent formatting of event_data_url parameter
  • Attribute values are now properly sanitized to remove surrounding quotes
  • Ensures consistent formatting across all event attributes
  • Resolves issue #25: Inconsistent event_data_url formatting

Added #

• Data Collection Persistence: The enableDataCollection setting now persists across app restarts
  • Automatically saves the data collection preference to device storage using SharedPreferences
  • Defaults to enabled on first app launch
  • Fire-and-forget persistence - no need to await setting changes
  • Maintains full backward compatibility with existing API
  • Resolves issue #62: "Persist faro.enableDataCollection"
• GitHub issue templates for bug reports and feature requests
• Pull request template for standardized contributions
• Code of Conduct (Contributor Covenant v1.4)
• Comprehensive Contributing Guidelines with setup instructions and development workflow
• Maintainers documentation listing current project maintainers

Changed #

• Major documentation overhaul:
  • Enhanced README with improved badges, clearer setup instructions, and better project description
  • Completely rewritten Features documentation with detailed explanations and code examples
  • Improved Getting Started guide with step-by-step setup for both Grafana Cloud and self-hosted options
• Updated example app to demonstrate latest SDK features and best practices

Improved #

• Project governance and community guidelines establishment
• Developer experience with better onboarding documentation
• Code contribution workflow with standardized templates and processes

Fixed #

• Critical NullPointerException in Android frame monitoring: Fixed crash when frame monitoring callbacks execute after Flutter engine detachment
  • Added proper cleanup in stopFrameMonitoring() to remove Choreographer callbacks
  • Added null checks in handleFrameDrop(), handleSlowFrameDrop(), and handleRefreshRate() methods
  • Added safety guards to prevent frame processing when monitoring is stopped
  • Prevents crashes when app goes to background or during configuration changes

Added #

• Support for custom HTTP headers in FaroConfig via the collectorHeaders field
  • Allows users to specify headers that will be included in all requests to the collector endpoint
  • Useful for deployments that require specific headers for routing or authentication

Added #

• Automated pub.flutter-io.cn deployment with GitHub Actions
• Pre-release validation tools

Changed #

• Improved release workflow with safety checks

Changed #

• Updated intl dependency to newer version to be compatible with latest flutter version

Changed #

• Maintenance release

Changed #

• Updates README

Changed #

• Restructure where faro code is located. Moved from packages/faro to root. Since we only have one package in this repo for now

Added #

• Comprehensive test coverage for model serialization

Changed #

• Enhanced Android Exit Info filtering to reduce noise in crash reports
• Improved JSON parsing and error handling in model classes

Fixed #

• Fixed handling of non-string values in exception context and stacktrace

Changed #

• Renamed package from rum_sdk to faro
• Renamed main API class from RumFlutter to Faro
• Renamed all related classes with "Rum" prefix to "Faro" prefix
• Updated all import statements to use the new package name
• Updated documentation with new package name and examples

Fixed #

• Bug fixes and improvements

Added #

The following Key Metrics of Flutter Applications are Added in the Alpha Release.

• Mobile App Performance
  • cpu usage
  • memory usage
  • cold/warm start
  • ANR ( android)
  • Native slow/frozen frames
• Flutter Errors & Exceptions
• Events
  • session start
  • route changes
  • user interaction
• Http network info
  • Load Duration , method , resource/type , request/response size
• Rum Asset Bundle
  • Asset Size, Load time
• Custom events, logs, measurement, error
• Offline Caching of Events