NLog 4.7.0

NLog is a logging platform for .NET with rich log routing and management capabilities.
NLog supports traditional logging, structured logging and the combination of both.

Supported platforms:

- .NET Framework 3.5, 4, 4.5, 4.6, 4.7 & 4.8
- .NET Standard 1.3+ and 2.0+;
- .NET Framework 4 client profile
- Xamarin Android, Xamarin iOs
- UWP
- Windows Phone 8
- Silverlight 4 and 5
- Mono 4

For ASP.NET Core, check: NLog.Web.AspNetCore

There is a newer version of this package available.
See the version list below for details.
Install-Package NLog -Version 4.7.0
dotnet add package NLog --version 4.7.0
<PackageReference Include="NLog" Version="4.7.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add NLog --version 4.7.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

## Bugfixes
- LogFactory - Fix deadlock issue with AutoReload (@snakefoot)
- JsonLayout - Fixed ThreadAgnostic to correctly capture context when using nested JsonLayout (@snakefoot)
- ExceptionLayoutRenderer - Fixed so Format option HResult also works for NetCore (@snakefoot)
- Log4JXml Layout - Render NDLC + NDC scopes in correct order (@adanek + @304NotModified)
- Logger - Added exception handler for CallSite capture for platform that fails to capture StackTrace (@snakefoot)
- StringSplitter - Fixed quote handling when reading elements for config list-properties (@snakefoot)
- Utilities: fix ConversionHelpers.TryParseEnum for white space (@304NotModified)

## Features
- LogManager.Setup() allows fluent configuration of LogFactory options (@snakefoot + @304NotModified)
- LogManager.Setup().SetupSerialization(s => s.RegisterObjectTransformation(...)) for overriding default property reflection (@snakefoot + @304NotModified + @Giorgi + @mmurrell)
- LogManager.Setup().SetupSerialization(s => s.RegisterConditionMethod(...)) can use lambda methods and not just static methods (@snakefoot)
- ${level:format=FullName} will expand Info + Warn to their full name (@snakefoot)
- FileTarget - Supports MaxArchiveDays for cleanup of old files based on their age (@snakefoot)
- Layout.FromMethod to create Layout directly from a lambda method (@snakefoot)
- Layout.FromString to create Layout directly from string along with optional parser validation (@snakefoot)
- ${dir-separator} for rendering platform specific directory path separator (@304NotModified)
- FileTarget - Supports ArchiveOldFileOnStartupAboveSize for cleanup of existing file when above size (@Sam13)
- InternalLogger - Added LogMessageReceived event (@304NotModified)
- DatabaseTarget - Assign connection properties like SqlConnection.AccessToken (@304NotModified + @snakefoot)
- DatabaseTarget - Assign command properties like SqlCommand.CommandTimeout (@snakefoot)
- ${onHasProperties} for only rendering when logevent includes properties from structured logging (@snakefoot)

## Improvements
- XmlLoggingConfiguration - Marked legacy constructors with ignoreErrors parameter as obsolete (@snakefoot)
- LoggingConfiguration - Perform checking of unused targets during initialization for better validation (@snakefoot)
- EventLogTarget - Improve diagnostics logging when using dynamic EventLog source (@snakefoot)
- ${longdate} now also supports raw value for use as DatabaseTarget parameter with DbType (@snakefoot)
- SourceLink for GitHub for easy debugging into the NLog source code (@304NotModified)
- JsonLayout - EscapeForwardSlash now automatically applies to sub-attributes (@snakefoot)
- TraceTarget - Introduced EnableTraceFail=false to avoid Environment.FailFast (@snakefoot)
- ExceptionLayoutRenderer - Improved error message when Format-token parsing fails (@snakefoot)
- AutoFlushWrapper - Set AutoFlush=false for AsyncTaskTarget by default (@snakefoot)
- LocalIpAddressLayoutRenderer - Higher priority to network-addresses that has valid gateway adddress (@snakefoot)
- LogFactory - Flush reports to InternalLogger what targets produces timeouts (@snakefoot)  

## Performance
- ObjectGraphScanner - Avoid holding list.SyncRoot lock while scanning (@snakefoot)
- FileTarget - ConcurrentWrites=true on NetCore now much faster when archive enabled (@snakefoot)
- JsonConverter - Write DateTime directly without string allocation (@snakefoot)
- XmlLayout - Removed unnecessary double conversion to string (@snakefoot)
- WebServiceTarget - Reduced memory allocations by removing unnecessary delegate capture (@snakefoot)
- NetworkTarget  - Reduced memory allocation for encoding into bytes without string allocation (@snakefoot)
- AsyncTaskTarget - Skip default AsyncWrapper since already having internal queue (@snakefoot)
- Mark Condition Expressions as ThreadSafe to improve concurrency in Layouts (@snakefoot)
- DatabaseTarget - Added IsolationLevel option that activates transactions for better batching performance (@snakefoot)
- SimpleLayout - Assignment of string-reference with null-value will translate into FixedText (@304NotModified)
- AsyncWrapper - Less aggressive with scheduling timer events for background writing (@snakefoot)
- Faster assignment of properties accessed through reflection (@304NotModified)
- ${replace} - Faster search and replace when not explicitly have requested regex support (@snakefoot)
- Skip need for Activator.CreateInstance in DbTypeSetter (@304NotModified)


Full changelog: https://github.com/NLog/NLog/blob/master/CHANGELOG.md

For all config options and platform support, check https://nlog-project.org/config/

NuGet packages (1.8K)

Showing the top 5 NuGet packages that depend on NLog:

Package Downloads
NLog.Extensions.Logging
NLog LoggerProvider for Microsoft.Extensions.Logging for logging in .NET Standard libraries and .NET Core applications. For ASP.NET Core, use NLog.Web.AspNetCore: https://www.nuget.org/packages/NLog.Web.AspNetCore
NLog.Config
NLog.config file to get started with configuring NLog. This package is not mandatory to get started with NLog: the configuration file can created manually (read specs here: https://github.com/NLog/NLog/wiki/Configuration-file) or the configuration can be created programmatically. (read more here: https://github.com/NLog/NLog/wiki/Configuration-API) Note: Unfortunately this package won't work well when using <PackageReference> Advised to: - download manually: https://raw.githubusercontent.com/NLog/NLog/dev/src/NuGet/NLog.Config/content/NLog.config - set "Copy To Output Directory" to "Copy if newer"
Microsoft.ApplicationInsights.NLogTarget
Application Insights NLog Target is a custom target allowing you to send NLog log messages to Application Insights. Application Insights will collect your logs from multiple sources and provide rich powerful search capabilities. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156
NLog.Web
NLog logging for ASP.NET and ASP.NET MVC. Includes targets and layout renderers for websites and web applications. This package is for ASP.NET 3.5+ For ASP.NET Core: Check https://www.nuget.org/packages/NLog.Web.AspNetCore
NLog.Extended
NLog.Extended.dll provides MSMQ target and AppSetting renderer

GitHub repositories (236)

Showing the top 5 popular GitHub repositories that depend on NLog:

Repository Stars
shadowsocks/shadowsocks-windows
If you want to keep a secret, you must also hide it from yourself.
Wox-launcher/Wox
Launcher for Windows, an alternative to Alfred and Launchy.
JustArchiNET/ArchiSteamFarm
C# application with primary purpose of idling Steam cards from multiple accounts simultaneously.
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
Jackett/Jackett
API Support for your favorite torrent trackers

Version History

Version Downloads Last updated
4.7.5 589,636 9/27/2020
4.7.4 773,255 8/22/2020
4.7.3 394,941 7/31/2020
4.7.2 2,256,435 5/18/2020
4.7.1 48,198 5/15/2020
4.7.0 1,755,029 3/20/2020
4.6.8 5,790,964 11/4/2019
4.6.7 4,863,636 8/25/2019
4.6.6 1,517,226 7/14/2019
4.6.5 1,923,241 6/14/2019
4.6.4 1,526,998 5/28/2019
4.6.3 1,322,843 4/30/2019
4.6.2 1,029,009 4/2/2019
4.6.1 140,593 3/29/2019
4.6.0 448,796 3/21/2019
4.5.11 6,563,528 11/6/2018
4.5.10 3,340,546 9/17/2018
4.5.9 952,766 8/24/2018
4.5.8 1,334,993 8/5/2018
4.5.7 711,484 7/19/2018
4.5.6 1,920,069 5/29/2018
4.5.5 476,754 5/25/2018
4.5.4 1,623,285 5/5/2018
4.5.3 921,584 4/16/2018
4.5.2 668,832 4/6/2018
4.5.1 202,437 4/3/2018
4.5.0 2,746,145 3/25/2018
4.4.13 543,191 2/27/2018
4.4.12 4,420,556 8/8/2017
4.4.11 1,119,860 6/17/2017
4.4.10 286,730 5/31/2017
4.4.9 753,245 5/5/2017
4.4.8 115,618 4/28/2017
4.4.7 88,263 4/25/2017
4.4.6 248,031 4/15/2017
4.4.5 345,663 3/28/2017
4.4.4 407,121 3/10/2017
4.4.3 560,159 2/17/2017
4.4.2 292,841 2/6/2017
4.4.1 844,573 12/24/2016
4.4.0 231,116 12/14/2016
4.3.11 777,429 11/7/2016
4.3.10 518,356 10/11/2016
4.3.9 387,099 9/18/2016
4.3.8 501,740 9/5/2016
4.3.7 469,028 8/6/2016
4.3.6 216,396 7/23/2016
4.3.5 695,495 6/12/2016
4.3.4 594,065 5/16/2016
4.3.3 288,431 4/28/2016
4.3.2 73,356 4/26/2016
4.3.1 91,281 4/20/2016
4.3.0 99,955 4/16/2016
4.2.3 1,177,354 12/20/2015
4.2.2 225,497 12/2/2015
4.2.1 212,013 11/21/2015
4.2.0 317,149 10/24/2015
4.1.2 568,055 9/20/2015
4.1.1 112,966 9/12/2015
4.1.0 159,030 8/31/2015
4.0.1 590,834 6/18/2015
4.0.0 615,770 6/9/2015
3.2.1 630,432 4/24/2015
3.2.0 1,106,876 1/2/2015
3.1.0 1,137,597 6/24/2014
3.0.0 177,813 6/2/2014
2.1.0 997,541 10/10/2013
2.0.1.2 624,271 4/8/2013
2.0.0.2000 1,046,002 7/18/2011
1.0.0.505 213,160 1/7/2011
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