.NET agent release notesRSS

New features

• Add Kafka cluster metrics (#3803) (803dc9a)
• Allow setting the application name per IIS application pool in newrelic.config (#3794) (f1e2dcf)
• Instrument runtime-async methods (#3804) (420485a)

Fixes

• Correct cloud.region and ARN partition determination for AWS SDK segments (#3787) (fc279c5)

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Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

New features

• The code that the profiler injects into your application now caches its lookups into the agent with a lock-free cache, instead of resolving each call by reflection, resulting in lower agent overhead for .NET applications. (#3709) (4c7797c)

Fixes

• Prevent transaction cross-contamination in HybridHttpContextStorage (#3754) (2d04565)
• Release held WCF client transaction when async result completes before callback swap (#3772) (3ef02f3)
• Skip SQL metadata comment injection for CommandType.StoredProcedure (#3756) (59b92ea)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

Fixes

• Add on-insert check to SimpleCache to prevent runaway growth. (#3727) (88e667f)
• Aggregate metrics post rename instead of using old names. (#3729) (67f7fcd)
• Guard null OperationContext in WCF MethodInvokerWrapper (#3730) (4ab79f3)
• Instrument new method for local log decoration in Serilog 4.4.0+ (#3705) (426f711)
• Prevent double RUM script injection in ASP.NET Core 6+ responses (#3726) (498da98)
• Report the database a SQL command actually ran against (#3752) (b24ff10)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

New features

• Added support for reporting request queue times using X-Request-Start and X-Queue-Start headers across all web hosts.(#3659)
• Added support for server-side configuration of AI Monitoring settings. (#3664)

Fixes

• Updated Npgsql instrumentation to support version 8.x and newer. (#3667)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

New features

• Add alternative environment variables for expected and ignored error codes. (#3626) (c29f037)
• Add Kafka internal metrics (#3555) (1102c0b)
• Add SQL metadata comments to enable APM to DB Query Performance Monitoring correlation (#3582) (04599b5)

Fixes

• Bedrock Converse no longer drops events when first content block is non-text (#3649) (8813077)
• Distributed tracing for HttpWebRequest body and async requests (#3652) (8f8928d)
• Prevent malformed log_event_data JSON for non-serializable context values (#3642) (a7108cb)

Checksums

Update your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

Notice

• Customers using RecordDatastoreSegment() with a custom vendor name will see metric names change from Datastore/*/Other/* to Datastore/*/<VendorName>/*. Update any dashboards, alerts, or queries that reference the old Other-based metric names. (f6c0e48)

Fixes

• RecordDatastoreSegment() API will correctly use the caller-supplied vendor name instead of ignoring it. (f6c0e48)
• Ensure all StackExchange.Redis segments are created and added to transaction before it is harvested (#3574) (4152ea2)
• Update MySql.Data instrumentation to support 9.7.0 signature changes (#3562) (1e40e44)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

New features

• Add support for instrumenting Hangfire background jobs. (#3520) (2e82366)
• Include structured log message arguments as context data for MEL (#3479) (24819c4)

Fixes

• Complete array attribute serialization for all payload types (#3531) (62bdb44)
• Resolve Lambda auto-instrumentation race condition (#3508) (25c59e7)
• Restore dotnet-counters tool compatibility (#3526) (407eae5)
• Send loaded modules on agent reconnect (#3534) (ecaa550)
• Support multi-transport queue name parsing for MassTransit (#3523) (db48d08)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

New features

• Add array support for custom attributes in .NET Agent API (#3456) (4fb9405)
• Add hybrid agent support for grpc-dotnet. (#3475) (6b48c06)
• Add LLM monitoring for Microsoft.Extensions.AI via OpenTelemetry bridge (#3472) (2e03c0c)

Fixes

• Don't instrument Blazor / SignalR websocket connections (#3468) (7f2a5e9)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.

New features

• The .NET Hybrid Agent provides a future-proof observability solution with integrated support for OpenTelemetry Tracing and Metrics APIs. OpenTelemetry Logs will continue to be supported through the existing Microsoft.Extensions.Logging integration. This release delivers critical OpenTelemetry features including Span Links, Events on Spans, and unified sampling algorithms. It is designed to bridge the gap for .NET teams looking to adopt OpenTelemetry standards while maintaining backwards compatibility with their existing New Relic dashboards. (72a0414)

Fixes

• Agent correctly overwrites files when necessary. (#3425) (9cafa88)

Checksums

Updating your agent

• Follow standard procedures to update the .NET agent.
• If you're using a particularly old agent, review the list of major changes and procedures for updating legacy .NET agents.

We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version no more than 90 days old. Read more about keeping your agent up to date. See the New Relic .NET agent EOL policy doc for information about agent releases and support dates.