Lambda-Extension release notesRSS

Notes

• Added support for sql_trace_data in APM telemetry
• Added support for SSL_CERT_FILE

Fixed

• Added changes to include error_event_data for apm mode
• Improved shutdown logs duration metrics

Notes

• Added NEW_RELIC_LAMBDA_EXTENSION_PROXY environment variable for proxy configuration
• Added NEW_RELIC_EXTENSION_SEND_LOGS environment variable to control sending logs
• Added NEW_RELIC_EXTENSION_LOGS_ENABLED environment variable for extension logging

Fixed

• Fixed JSON logs with "level": "Information" being incorrectly classified as errors
• Improved request_id handling and tracking
• Fixed random number generation in TraceIDGenerator

Notes

• Java runtime support improvements - automatic detection and proper mode routing

• Enhanced log processing reliability - ensures all logs are properly tagged before sending

• Reduced resource usage by optimizing channel creation

• Improved log processing efficiency

Fixed

• Java agent version reporting

• Log metadata stamping for pre-invoke logs

• Unnecessary warning messages in APM mode

Notes

• Configuration: Add support for NEW_RELIC_EXTENSION_SEND_PLATFORM_LOGS Environment variable

• Metadata: Add tags to entity for Extension version and Agent version

• Logging: Change secondary Log level to DEBUG

Fixed

• Runtime Detection: Enhance runtime detection logic for improved agent compatibility

• Telemetry: Implement global fallback ARN handling across telemetry components

• Validation: Update code for additional checks

Notes

• Implemented pre-invoke log buffering with metadata validation and fallback ARN support

• Removed debug log for buffering in pre-invoke buffer

• Added fallback code for Aws-arn

Fixed

• Remove License key exposure from CloudWatch logs

メモ

• Lambda が継続するようにメイン関数のパニック処理を改善しました

• APMモードとShutdownログ用の新しいテレメトリー バッファを追加しました

• 強化されたバージョン管理サポートとAPMモードでのログ記録

修理済み

• プラットフォーム レポート行を圧縮ではなくjsonとして送信するように更新しました

• から取得したライセンスキーの EU エンドポイント検出 SSM/Secrets Manager

Notes

• Removed unnecessary trace logging for skipped Function and Extension logs.

• Updated parsing logic to scan the first 50 characters instead of a 100-byte slice. Ensuring safe handling of multi-byte UTF-8 characters (like emojis) without truncation errors.

Fixed

• Resolved an issue where requests were occasionally not instrumented in APM mode.

• Enabled automatic NEW_RELIC_LICENSE_KEY fallback.

Major Release: Rust Rewrite

Complete rewrite of the New Relic Lambda Extension from Go (v2.3.24) to Rust for improved performance, memory safety, and reduced cold start times.

New Features

• APM Mode Support: Lambda functions can now report directly to New Relic APM platform as application entities

  • Enable with NEW_RELIC_APM_LAMBDA_MODE=true
  • Full support for metrics, spans, errors, events, and transaction traces
  • Platform logs converted to APM metrics (apm.lambda.transaction.*)
  • Enhanced error events for timeouts and faults with distributed tracing context
  • See APM Mode Documentation for details

• Request-Scoped Processing: Improved payload correlation and lifecycle management

• Intelligent Buffer Management: Handles agent payloads that arrive before request context with automatic cleanup

Performance Improvements

• Faster Cold Starts: Optimized Rust compilation with minimal dependencies and LTO
• Lower Memory Usage: Reduced memory footprint with zero-cost abstractions
• Concurrent Processing: Parallel processing of logs, platform metrics, and agent telemetry
• Connection Pooling: HTTP client connection reuse across invocations

Security & Reliability

• Memory Safety: Rust's ownership system prevents memory leaks and buffer overflows
• Panic Safety: Global panic handler prevents Lambda crashes from extension failures
• Type Safety: Compile-time guarantees eliminate entire classes of runtime errors

Technical Changes

• Migrated from Go v1.23 to Rust 2021 edition
• Built on Tokio async runtime
• AWS SDK v1 for Rust (aws-config 1.8, aws-sdk-secretsmanager 1.88, aws-sdk-ssm 1.93)
• Modular architecture with clean separation of concerns

Configuration

All existing environment variables remain unchanged for backwards compatibility. Key variables:

• NEW_RELIC_LICENSE_KEY: New Relic license key
• NEW_RELIC_APM_LAMBDA_MODE: Enable APM mode (default: false)
• NEW_RELIC_EXTENSION_SEND_FUNCTION_LOGS: Send function logs (default: false)
• NEW_RELIC_LAMBDA_LOG_LEVEL: Extension log level supports more granular control with info, debug, warn, error, trace, all

Full configuration details in the README.

Migration Notes

• Drop-in Replacement: No code changes required for existing users
• Environment Variables: All configuration remains the same
• Binary Compatibility: Maintains compatibility with existing New Relic agents
• Performance: Expect 20-40% faster cold starts and lower memory usage

[2.3.24] - Go Implementation (Legacy)

Last Go-based version before Rust migration. Maintained for reference and legacy support.