NLog

Fixes for bugs introduced in NLog 4.3. All reported issues are now fixed.

• Fix: Possible stackoverflow when using ${var:myvar} with the FileTarget
• Fix: NLog could throw "allLayouts is null. Call base.InitializeTarget()", which was even an issue when throwExceptions = false.
• Fix: Filetarget could throw "Thread was being aborted"

See milestone

Features

• Support Windows Phone 8, Xamarin Android and Xamarin iOS (beta)
• Consistent handling of exceptions (BEHAVIOUR CHANGE)
• Control of exception throwing for configuration errors
• API improvements
• Relative paths for fileTarget
• InternalLogger: write to System.Diagnostics.Trace
• Mail Target: Allow virtual paths for SMTP pickup
• EventTarget: option to set the max length of the message and action (discard, split, truncate)
• MethodCallTarget: allow optional parameters in called methods.
• ConsoleTarget: Regex cache is instead of compiled regex, for better memory usage. This is configurable.
• Database target: don't require "ProviderName" attribute when using <connectionStrings>
• RegistryLayout: Support for layouts, RegistryView (32, 64 bit) and all root key names (HKCU/HKLM etc)
• Allow to free CallContext in MappedDiagnosticsLogicalContext
• LogFactory: Add generic-type versions of GetLogger() and GetCurrentClassLogger()
• Added Logger.Swallow(Task task)
• Unused targets will be logged to the internal logger
• Config classes are now thread-safe.
• InternalLogger: improved logging of exceptions (analogous to normal Logger)
• More logging to the internal logger (e.g. Async wrapper and buffer wrapper)
• Added timestamp options for the internal logger.
• Autoload NLog.config in assets folder on Android

Bug fixes

Among others:

• ${callsite} works now for async methods!
• A lot of Filetarget bug fixes regarding with archiving, locking and concurrent writing.
  Most noticeable:
  • Use last-write-time for archive file name. This is far more stable.
    In the past there were some issues with unexpected archive filenames.
  • Fix: archiving won't work when a there is a date in the filename
  • Fix: archiving not working properly with AsyncWrapper
  • Fix: Footer for archiving
  • Fix: Crashes with relative path without ${basedir}
  • Fix: Archive files are never created when there are lot of write in log file
• NetworkTarget: fix possible deadlock
• Fix autoreload nlog.config with parent configs.
• WebServiceTarget: Fix HTTP GET protocol
• Bugfix: Internallogger creates folder, even when turned off
• Fix possible Nullref in ${variable}
• ${processtime}: incorrect milliseconds formatting
• ${processtime}: fix incorrect negative time (rounding issue)
• FileTarget: Fix writing log files to root dir
• Check for TimeToSleepBetweenBatches in AsyncWrapper

See milestone

Features

• Support for Windows Phone 8 (beta)
• Support for Xamarin Android (beta)
• Support for Xamarin iOS (beta)
• Consistent handling of exceptions:
  • all exceptions are logged to the internallogger
  • throwExceptions option will be respected in all cases (advise: disable throwExceptions in production environments)
• FileTarget now supports relative paths. No need for ${basedir} anymore!
• EventTarget: option to set the max length of the message and action (discard, split, truncate)
• MethodCallTarget: allow optional parameters
• RegistryLayout: Support for layouts, RegistryView (32, 64 bit) and all root key names (HKCU/HKLM etc)
• Unused targets will be logged to the internallogger
• Config classes are now threadsafe.
• ConsoleTarget: Regex cache is instead of Regex Compile (option), for better memory usage.
• InternalLogger: improved logging of exceptions (analogous to normal Logger)

Bugfixes

• fix: ${Callsite} always shows MoveNext for c# 5 async/awaited methods
• A lot of Filetarget bug fixes regarding with archiving, locking and concurrent writing. All filetarget fixes: https://github.com/NLog/NLog/issues?q=milestone%3A4.3+is%3Aclosed+label%3Afile-target
• NetworkTarget: fix possible deadlock
• Fix autoreload nlog.config with parent configs. (#668)

See full list: https://github.com/NLog/NLog/issues?q=milestone%3A4.3+is%3Aclosed

Performance improvements (CPU & Memory) for the FileTarget.

Changes:

• Improve file writing when file name has fixed name: no layout renderer in file name. 10 secs instead of 34 sec for 10 million. Sync writing with keepFileOpen="true", AutoFlush="false" and ConcurrentWrites="false".
• Improved CleanupFileName by @epignosisx (https://github.com/NLog/NLog/pull/1063)
• Changes the performance of GDC toString
• Added option CleanupFileName on filetarget for faster writing when using dynamic (=non-fixed) file name. Default true (=backwards-compatible)

Fixed assembly file version. Same code as NLog 4.2.1.

See GitHub issue

• Show warning for Databasetarget.UseTransactions instead of exception.
• NetworkTarget: improved performance, allow configuring of max connections.
• Filetarget: Max archives settings sometimes removes to many files.
• Prevent Collection was modified (ObjectGraphScanner.ScanProperties)
• General memory pressure improvements.
• LogReceiverWebServiceTarget.CreateLogReceiver() should be virtual
• VariableLayoutRenderer does not work with Custom LogManagers.

Features

• Performance Counter Target: it's now possible to configure the step size for the counter target. Before the step size was always one.
• Mail Target: pickupDirectoryLocation and deliveryMethod are configurable from the NLog config.
• Cached Layout Renderer: a clearCache option has been added for more control over clearing the cache.
• File target: auto add .zip to compressed archive when archiveName isn't specified.

Bug fixes

• Inner layout can now contain colons.
• Colored Console Target: highlight whole words was broken.
• Mail Target: when useSystemNetMailSettings was false, some settings were still used from the <mailSettings> of the .Net config.
• Removed unnecessary System.Drawing references for Xamarin.
• File Target: sometimes an exception was thrown when archiving was enabled.
• File Target: file archiving DateAndSequence & FileArchivePeriod.Day won't always work.
• GetTargetsByLevelForLogger could throw a "Collection was modified" exception.

In more detail, see news post

Features:

• Fluent API: Added .Properties for easier adding of multiple (event)properties.

Bug fixes:

• AllEventPropertiesLayoutRenderer was not ThreadAgnostic.
• Possible "Collection was modified" exception with ReconfigExistingLoggers.

Other:

• AssemblyFileVersion was wrong and could lead to issues with installers.

Features:

• MDLC now also supports objects, like MDC,GDC and NDC (those we're added in 4.1.0)

Bug fixes:

• Fixed assembly name issue with strong name.
• NLog won't crash if there are binaries starting with "Nlog" that we can't load (auto load)
• Directory was required with the internal logger

Other:

• Obsolete text fixed
• Removed some unused classes (moved to NLog.Windows.Forms before)

See news post.

New features, bug-fixes and easier upgrade to NLog 4.x

See news post

Patch release for 4.0. This release fixes the following problems:

• The auto-load of the extensions was not working in combination with ASP.NET.
• Autoflush was not optimal implemented.
• We reverted an unneeded breaking change in MailTarget. The SMTP property is not required anymore. This is consistent with 3.x.
• Loading the NLog assembly from an embedded resource is now working.
• Writing to files could lead to OverflowExceptions in 64-bit runtime. This was a bug since NLog 2.0.
• Some descriptions for the obsolete methods are corrected.

See also news post

See milestone

and news post

See milestone

and news post

http://nlog-project.org/2015/05/28/nlog-4-release-candidate.html

See milestone

This release add five new features to NLog and fixes more than 20 bugs. See the release post or the full changelog

Contains mostly bug fixes, see full changelog

Removes support for some of the older frameworks supported in NLog 2.x:

• Compact Framework (all versions)
• Silverlight 2 and 3
• .NET 2.0
• COM Interop
• NLogC

Apart from this, this release contains mostly bug fixes. See the NLog 3.0 change log for all changes.

Most notable changes:

• Better support for partial trust (#67, #117, #144)
• Fix memory leak in NetworkTarget (#19)
• Add Enabled attribute to logger rules (#13)
• AppSettings layout renderer (#239)
• Better support for date based file archiving (#241)

See full changelog here https://github.com/NLog/NLog/issues?milestone=2&state=closed