NLog 4.5.0

NLog is a logging platform for .NET with rich log routing and management capabilities.

Showing the top 20 packages that depend on NLog.

Packages Downloads
Wigos.Core
This package contain all Wigos.Core (Wigos.Core + Wigos.Core.Api)
 8
Wigos.Core
This package contain core libraries of Clean Architecture used in the new modules of Wigos.
 8
Wigos.Core
This package contain core libraries of Clean Architecture used in the new modules of Wigos.
 9
Wigos.Core.UnitTest
This NuGet package contain UnitTests core libraries of Clean Architecture used by new modules of Wigos.
 9
Wigos.Core.UnitTest
This NuGet package contain UnitTests core libraries of Clean Architecture used by new modules of Wigos.
 11

NLog 4.5 adds structured logging and .NET Standard support/UPW without breaking changes! Also a lot features has been added!

List of important changes in NLog 4.5

Features:

  • Support for .Net Standard 2.0 [#2263] + [#2402] (@snakefoot)
  • Support for .Net Standard 1.5 [#2341] (@snakefoot)
  • Support for .Net Standard 1.3 (and UWP) [#2441] + [#2597] (Remember to manually flush on app suspend). (@snakefoot)
  • Introduced Structured logging [#2208] + [#2262] + [#2244] + [#2544] (@snakefoot, @304NotModified, @jods4, @nblumhardt) - see https://github.com/NLog/NLog/wiki/How-to-use-structured-logging
  • Json conversion also supports object properties [#2179], [#2555] (@snakefoot, @304NotModified)
  • event-properties layout-renderer can now render objects as json [#2241] (@snakefoot, @304NotModified)
  • exception layout-renderer can now render exceptions as json [#2357] (@snakefoot)
  • Default file archive logic is now easier to use [#1993] (@snakefoot)
  • Introduced InstallationContext.ThrowExceptions [#2214] (@rbarillec)
  • WebServiceTarget - Allow configuration of proxy address [#2375] (@snakefoot)
  • WebServiceTarget - JsonPost with JsonLayout without being wrapped in parameter [#2590] (@snakefoot)
  • $, added GeneratedFromLogEvent [#2226] (@snakefoot)
  • TraceTarget RawWrite to always perform Trace.WriteLine independent of LogLevel [#1968] (@snakefoot)
  • Adding OverflowAction options to BufferingTargetWrapper [#2276] (@mikegron)
  • WhenRepeatedFilter - Filtering of identical LogEvents [#2123] + [#2297] (@snakefoot)
  • $ added CleanNamesOfAsyncContinuations option [#2292] (@tkhaugen, @304NotModified)
  • $ allows timing of ndlc-scopes [#2377] (@snakefoot)
  • NLogViewerTarget - Enable override of the Logger-name [#2390] (@snakefoot)
  • $ added [#2411] (@MikeFH)
  • Added "regex-matches" for filtering [#2437] (@MikeFH)
  • $, $ & - Support Format parameter [#2500] (@snakefoot)
  • $ added [#2491] (@UgurAldanmaz)
  • $: add type (File, Assembly, Informational) option [#2487] (@alexangas)
  • FileTarget: Support byte order mark [#2456] (@KYegres)
  • TargetWithContext - Easier to create custom NLog targets with support for MDLC and NDLC [#2467] (@snakefoot)
  • $ - Without line number [#2591] (@brunotag)
  • MDC + MDLC with SetScoped property support [#2592] (@MikeFH)
  • LoggingConfiguration AddRule includes final-parameter [#2612] (@893949088)

BugFixes:

  • Improve archive stability during concurrent file access [#1889] (@snakefoot)
  • FallbackGroup could lose log events [#2265] (@frabar666)
  • $ - only include separator when items are available [#2257] (@jojosardez)
  • LogFactory - Fixes broken EventArgs for ConfigurationChanged [#1897] (@snakefoot)
  • Do not report wrapped targets as unused targets [#2290] (@thesmallbang)
  • Added IIncludeContext, implemented missing properties [#2117] (@304NotModified)
  • Improve logging of callsite linenumber for async-methods [#2386] (@snakefoot)
  • NLogTraceListener - DisableFlush is enabled by default when AutoFlush=true [#2407] (@snakefoot)
  • NLogViewer - Better defaults for connection limits [#2404] (@304NotModified)
  • LoggingConfiguration.LoggingRules is not thread safe [#2393], [#2418]
  • Fix XmlLoggingConfiguration reloading [#2475] (@snakefoot)
  • Database Target now supports EntityFramework ConnectionStrings [#2510] (@Misiu, @snakefoot)
  • LoggingConfiguration.RemoveTarget now works while actively logging [#2549] (@jojosardez, @snakefoot)
  • FileTarget does not fail on platforms without global mutex support [#2604] (@snakefoot)
  • LoggingConfiguration does not fail when AutoReload is not possible on the platforms without FileWatcher [#2603] (@snakefoot)

Performance:

  • More targets has OptimizeBufferReuse enabled by default [#1913] + [#1923] + [#1912] + [#1911] + [#1910] + [#1909] + [#1908] + [#1907] + [#2560] (@snakefoot)
  • StringBuilderPool - Improved Layout Render Performance by reusing StringBuilders [#2208] (@snakefoot)
  • JsonLayout - Improved Layout Performance, by optimizing use of StringBuilder [#2208] (@snakefoot)
  • FileTarget - Faster byte-encoding of log messsages, by using crude Encoding.GetMaxByteCount() instead of exact Encoding.GetByteCount() [#2208] (@snakefoot)
  • Target - Precalculate Layout should ignore sub-layouts for complex layout (Ex Json) [#2378] (@snakefoot)
  • MessageLayoutRenderer - Skip string.Format allocation (for caching) when writing to a single target, instead format directly into output buffer. [#2507] (@snakefoot)

for full list, see https://github.com/NLog/NLog/blob/master/CHANGELOG.md

for what is supported in each platform, see https://github.com/NLog/NLog/wiki/platform-support

.NET Framework 3.5

  • No dependencies.

.NET Standard 2.0

  • No dependencies.

Xamarin.iOS 1.0

  • No dependencies.

WindowsPhone 8.0

  • No dependencies.

Silverlight 5.0

  • No dependencies.

Silverlight 4.0

  • No dependencies.

MonoAndroid 4.4

  • No dependencies.

.NET Standard 1.5

.NET Framework 4.0

  • No dependencies.

.NET Framework 4.5

  • No dependencies.

.NET Standard 1.3

Version Downloads Last updated
4.5.0 13 7/8/2025