This is a hotfix release that addresses occasional hangs when using test parallization and fixes crashes in NCrunch prior to version 3.9.

Issues Resolved

2205 Ncrunch: System.Xml.XmlException: Root element is missing, when adding NUnit 3.7.0
2209 NUnit occasionally hangs when parallelizable TestFixture has OneTimeSetUp and OneTimeTearDown

NUnit 3.7 - May 29, 2017

This release of NUnit expands on parallel test execution to allow test methods to be run in parallel. Please see the Parallelizable Attribute for more information.

NUnit 3.7 also drops the Portable build of the framework and replaces it with a .NET Standard 1.3 version to compliment the .NET Standard 1.6 version. This change enables several constraints and other features in the .NET Standard builds that weren't available in portable like Path and Directory based asserts.

The AssertionHelper class has been deprecated because it is seldom used and has not received any of the updates that Asserts and Constraints receive. If your code is using the AssertionHelper class, we recommend that you migrate your asserts.

Issues Resolved

164 Run test methods within a fixture in parallel
391 Multiple Assertions
652 Add ability to execute test actions before SetUp or OneTimeSetUp
1000 Support multiple Author attributes per test
1096 Treat OneTimeSetup and OneTimeTearDown as separate work items
1143 NUnitLite - Explore flag does not apply where filter to output
1238 Feature request: Print LoaderExceptions when fixture loading fails
1363 Make Timeouts work without running test on its own thread
1474 Several SetUpFixtures at the same level may be active at the same time
1819 TestContext.Progress.Write writes new line
1830 Add –labels switch changes to nunilite and nunitlite tests
1859 ConcurrentQueue is duplicate with System.Threading.dll package
1877 Resolve differences between NUnit Console and NUnitLite implementations of
1885 Test parameter containing a semicolon
1896 Test has passed however Reason with an empty message is printed in the xml
1918 Changing DefaultFloatingPointTolerance breaks tests running in parallel
1932 NUnit Warn class should be removed from stack trace by filter
1934 NullReferenceException when null arguments are used in TestFixtureAttribute
1952 TestContext.Out null when used in task with .NET Core
1963 Investigate removing SpecialValue
1965 TestContext does not flow in async method
1971 Switch CHANGES.txt to Markdown
1973 Implemented TestExecutionContext to use AsyncLocal<> for NETSTANDARD1_6
1975 TestFixtureSource doesn't work with a class that has no namespace
1983 Add missing ConstraintExpression.Contain overload
1990 Add namespace filter
1997 Remove unused –verbose and –full command line options
1999 Author Tests assume ICustomAttributeProvider.GetCustomAttributes return order is defined
2003 Better user info about ParallelizableAttribute and ParallelScope
2005 Exclude empty failure messages from results xml
2007 3.6 Multiple assertion backwards compatibility
2010 Add DelayedConstraint in NetStandard 1.6 build
2020 Better message when timeout fails
2023 Ability to abort threads running a message pump
2025 NullReferenceException using Is.EqualTo on two unequal strings
2030 Add method to mark tests as invalid with a reason
2031 Limit Language level to C#6
2034 Remove silverlight project - no longer used
2035 NullReferenceException inside failing Assert.That call
2040 Cannot catch AssertionException
2045 NUnitlite-runner crashes if no file is provided
2050 Creation of TestExecutionContext should be explicit
2052 NullReferenceException with TestCaseSource if a property has no setter
2061 TestContext.WorkDirectory not initialized during build process
2079 Make TestMethod.Arguments public or otherwise accessible (e.g. TestContext)
2080 Allow comments in files
2087 Enhance error message: Test is not runnable in single-threaded context. Timeout
2092 Convert Portable library to .NET Standard 1.3
2095 Extend use of tolerance to ComparisonConstraints
2099 Include type in start-suite/start-test report elements
2110 NullReferenceException when getting TestDirectory from TestContext
2115 Mark AssertionHelper as Obsolete
2121 Chained PropertyConstraint constraints report incorrect ActualValue
2131 Remove "Version 3" suffix from NUnitLite NuGet Package
2132 TestFixtureTests.CapturesArgumentsForConstructorWithMultipleArgsSupplied assumes order of custom attributes
2143 Non-parallel fixture with parallel children runs in parallel with other fixtures
2147 Test Assembly using NUnitLite & Nunit 3.6.1 hangs under .NET Core when --timeout is supplied on command line
2150 Add portable-slow-tests to Cake file
2152 Allow attaching files to TestResults
2154 Fix execution of non-parallel test fixtures
2157 Getting WorkerId inside Assert.Throws / DoesNotThrow returns null instead of previous non-null value
2158 Update SetupFixtureAttribute XML Docs
2159 Prevent crash in .NET standard with log file path
2165 Trying to install NUnit 3.6.1 on .NET Framework asks for download of 20 more packages
2169 Incorrect xmldocs for SetUpAttribute
2170 Cake build fails if only Visual Studio 2017 installed
2173 Remove PreTestAttribute and PostTestAttribute
2186 Replace special characters as part of converting branch names to package versions
2191 System.Reflection.TargetInvocationException with nunit3-console –debug on Mono

NUnit 3.6.1 - February 26, 2017

This is a hotfix release of the framework that addresses critical issues found in the 3.6 release.

Issues Resolved

1962 A Theory with no data passes
1986 NUnitLite ignores –workers option
1994 NUnitLite runner crashing when –trace is specified
2017 Two NUnit project's tests fail on systems with comma decimal mark settings
2043 Regression in 3.6.0 when catching AssertionException

NUnit 3.6 - January 9, 2017

This release of the framework no longer includes builds for Compact Framework or for SilverLight, but adds a .NET Standard 1.6 build. If anyone still using Compact Framework or SilverLight and would like to continue development on those versions of the framework, please contact the NUnit team.

Framework

.NET Standard 1.6 is now supported
Adds support for Multiple Assert blocks
Added the –params option to NUnitLite
Theories now support Nullable enums
Improved assert error messages to help differentiate differences in values
Added warnings with Warn.If(), Warn.Unless() and Assert.Warn()
Enabled Path, File and Directory Asserts/Contraints for .NET Core testing
Added NonTestAssemblyAttribute for use by third-party developers to indicate that their assemblies reference the NUnit framework, but do not contain tests

Issues Resolved

406 Warning-level Assertions
890 Allow file references anywhere in the command line.
1380 Appveyor Failures when branch name is too long
1589 Split the nunit repository into multiple repositories
1599 Move Compact Framework to separate project
1601 Move Silverlight to a separate project
1609 Upgrade Cake build to latest version
1661 Create .NET Standard Framework Build
1668 Need implementation-independent way to test number of items in a collection
1743 Provide multiple results for a test case in the XML output
1758 No direct inverse for Contains.Key
1765 TestCaseSourceAttribute constructor for method with parameters
1802 Design Multiple Assert syntax as seen by users
1808 Disambiguate error messages from EqualConstraint
1811 Build.ps1 fails if spaces in path
1823 Remove engine nuspecs and old global.json
1827 Remove unused repository paths from repositories.config
1828 Add Retry for failed tests only
1829 NUnitLite accepts –params option but does not make any use of it.
1836 Support nullable enums in Theories
1837 [Request] AfterContraint to support more readable usage
1840 Remove SL and CF #Defined source
1866 [Request] More readable way to set polling interval in After constraint
1870 EqualConstraint result failure message for DateTime doesn't show sufficient resolution
1872 Parameterized method being called with no parameter
1876 What should we do about Env.cs
1880 AttributeUsage for various Attributes
1889 Modify nunitlite to display multiple assert information
1891 TestContext.Progress and TestContext.Error silently drop text that is not properly XML encoded
1901 Make nunitlite-runner Prefer32Bit option consistent across Debug/Release
1904 Add .NET Standard 1.6 Dependencies to the Nuspec Files
1907 Handle early termination of multiple assert block
1911 Changing misleading comment that implies that every ICollection<T> is a list
1912 Add new warning status and result state
1913 Report Warnings in NUnitLite
1914 Extra AssertionResult entries in TestResults
1915 Enable Path, File and Directory Assert/Constraints in the .NET Standard Build
1917 Use of IsolatedContext breaks tests in user-created AppDomain
1924 Run tests using the NUnit Console Runner
1929 Rename zip and remove source zip
1933 Tests should pass if test case source provides 0 test cases
1941 Use dictionary-based property for test run parameters
1945 Use high-quality icon for nuspecs
1947 Add NonTestAssemblyAttribute
1954 Change Error Message for Assert.Equals
1960 Typo fixes
1966 Xamarin Runner cannot reference NUnit NuGet Package

NUnit 3.5 - October 3, 2016

This is the first version of NUnit where the framework will be released separately from the console runner, engine and other extensions. From this point forward, the NUnit Framework will be released on its own schedule that is not bound to that of any other NUnit project and version numbers may diverge over time.

This is also the first release where the NUnit Framework will not be included in the installer. Only the console runner, engine and extensions will be available as an MSI installer. We recommend that you use the NUnit NuGet packages for the framework, but a ZIP file with the binaries will also be available.

Framework

Added Assert.Zero and Assert.NotZero methods
You can now pass a Func<string> to Asserts to lazily evaluate exception messages
Added the ability to Assert on the order of multiple properties in a collection
Tests with a Timeout will no longer timeout while you are debugging

Issues Resolved

144 Pass a Func<string> to lazily evaluate an exception message
995 Enable Warning as Error
1106 Move various Assembly Info files under Properties for CF
1334 Add Assert.Zero and Assert.NotZero
1479 Don't enforce [Timeout] when debugger is attached
1540 Remove old .NET Core Projects
1553 Allow ordering tests to be done in multiple properties
1575 Escaping control chars in custom message
1596 Eliminate code sharing across projects to be split
1598 Split framework and console/engine into separate projects
1610 Refactor dependencies in build.cake
1615 Appveyor error in TestCF
1621 Remove console and command-line option files from common
1640 When submitting only part of optional parameters, all are overriden by defaults
1641 Create OSX CI Build on Travis
1663 Find way to hide NUnit.Compatability.Path from intellisense
1681 NUnitLite under .net core doesn't support TeamCity output
1683 Existence of SerializableAttribute in .NET Core
1693 2 unit tests fail due to localization
1716 Move installer to new repository
1717 Change suffix for master builds
1723 Remove Cake target TestAll
1739 Create separate copies of MockAssembly for framework, engine and extensions
1751 Serializable attribute exists in both System.Runtime.Serialization.Formatters and nunit.framework
1775 Support NUnit assertions in partial trust code.
1800 Remove Console/Engine projects from nunit.linux.sln
1805 Error message "arguments provided for method not taking any" seems incomplete / doesn't make much sense
1815 Prevent NullReferenceException in SubPathConstraint

NUnit 3.4.1 - June 30, 2016

Console Runner

A new option, –list-extensions, will display all the engine extensions that have been installed by the engine.

Issues Resolved

1623 NUnit 3.4 is not integrated with TeamCity
1626 NUnit.ConsoleRunner is not picking up NUnit.Extension.NUnitV2ResultWriter
1628 Agent's process stays in memory when it was failed to unload AppDomain
1635 Console option to list loaded extensions

NUnit 3.4 - June 25, 2016

Framework

Improvements in comparing equality using IEquatable<T>
Test case names will only be truncated if the runner requests it or it is overridden on the command line with the –test-name-format option
The .NET 2.0 version of the framework now includes LINQ. If your tests target .NET 2.0, you can now use LINQ queries in your tests

Engine

The TeamCity event listener has been separated out into an engine extension
Fixed numerous issues around thread safety of parallel test runs
Additional fixes to reduce memory usage
Fixes for Mono 4.4

Console Runner

There is a new –params command line option that allows you to pass parameters to your tests which can be retrieved using TestContext.Parameters
Another new command line option –loaduserprofile causes the User Profile to be loaded into the NUnit Agent process.

Issues Resolved

329 (CLI) Runner does not report AppDomain unloading timeout
720 Need a way to get test-specific command-line arguments at runtime
1010 Need to control engine use of extensions
1139 Nunit3 console doesn't show test output continously
1225 The –teamcity option should really be an extension
1241 Make TestDirectory accessible when TestCaseSource attributes are evaluated
1366 Classname for inherited test is not correct
1371 Support dotnet test in .NET CLI and .NET Core
1379 Console returns 0 for invalid fixtures
1422 Include TestListWithEmptyLine.tst in ZIP Package
1423 SingleThreaded attribute should raise an error if a thread is required
1425 Lazy initialization of OutWriter in TestResult is not thread safe
1427 Engine extensions load old packages
1430 TestObjects are retained for lifetime of test run, causing high memory usage
1432 NUnit hangs when reporting to TeamCity
1434 TestResult class needs to be thread-safe
1435 Parallel queue creation needs to be thread-safe
1436 CurrentFramework and Current Platform need to be more thread-safe
1439 EqualConstraint does Not use Equals Override on the Expected Object
1441 Add Linq for use internally in .NET 2.0 code
1446 TestOrderAttributeTests is not public
1450 Silverlight detection doesn't work when building on 32-bit OS
1457 Set the 2.0 build to ignore missing xml dcoumentation
1463 Should TestResult.AssertCount have a public setter?
1464 TNode.EscapeInvalidXmlCharacters recreates Regex continually
1470 Make EventQueue and associated classes lock-less and thread safe
1476 Examine need for "synchronous" events in event queue
1481 TestCase with generic return type causes NullReferenceException
1483 Remoting exceptions during test execution
1484 Comparing Equality using IEquatable<T> Should Use Most Specific Method
1493 NUnit 2 test results report ParameterizedMethod but should be ParameterizedTest
1507 NullReferenceException when null arguments are used in TestFixtureAttribute
1513 Add new teamcity extension to packages
1518 NUnit does not send the "testStarted" TeamCity service message when exception was thrown from SetUp/OneTimeSetUp
1520 Detect Portable, Silverlight and Compact and give error message
1528 Use of Sleep(0) in NUnit
1543 Blank name attribute in nunit2-formatted XML result file test-run element
1547 Create separate assembly for System.Linq compatibility classes
1548 Invalid Exception when engine is in a 32-bit process
1549 Changing default behavior for generating test case names
1551 Path in default .addins file for ConsoleRunner package may not exist
1555 EndsWith calls in Constraint constructor can cause major perf issues
1560 Engine writes setting file unnecessarily
1573 Move Nunit.Portable.Agent to new Repo
1579 NUnit v3 dangerously overrides COMPLUS_Version environment variable
1582 Mono 4.4.0 Causes Test Failures
1593 Nunit Console Runner 3.2.1 and Mono 4.4 throws RemotingException
1597 Move Portable agent to its own repository
1605 TeamCity package has no pre-release suffix
1607 nunit.nuget.addins discovery pattern is wrong then restored through project.json
1617 Load user profile on test runners

NUnit 3.2.1 - April 19, 2016

Framework

The output and error files are now thread safe when running tests in parallel
Added a .NET 3.5 build of the framework preventing conflicts with the compatiblity classes in the 2.0 framework
Added a SingleThreadedAttribute to be added to a TestFixture to indicate all child tests should run on the same thread

Engine

Unless required, run all tests within a fixture on the same thread
Added an EventListener extension point
Reduced memory usage

Console Runner

No longer probes for newer versions of the engine, instead uses the engine that is included with the console

Issues Resolved

332 Add CF to the Appveyor CI build
640 Keep CF Build (and other future builds) in Sync
773 Upgrade Travis CI from Legacy Infrastructure
1141 Explicit Tests get run when using –where with some filters
1161 NUnit3-Console should disallow the combination of –inprocess and –x86, giving an error message
1208 Apartment on assembly level broken
1231 Build may silently fail some tests
1247 Potential memory issue
1266 SetCultureAttribute does not work if set on assembly level
1302 Create EventListener ExtensionPoint for the Engine
1317 Getting CF framework unit tests running on CI build
1318 NUnit console runner fails with error code -100
1327 TestCaseSource in NUnit 3 converts an argument declared as String[] to String
1329 Unable to build without Compact Framework
1333 Single Thread per Worker
1338 BUILDING.txt is outdated
1349 Collision on System.Func from nunit.framework with System.Core in .Net 3.5 (CS0433)
1352 Tests losing data setup on thread
1359 Compilation error in NUnitPortableDriverTests.cs
1383 Skip Silverlight build if SDK not installed
1386 Bug when using Assert.Equals() with types that explicitly implement IEquatable<T>
1390 –testlist with file with blank first line causes IndexOutOfRangeException
1399 Fixed NullReference issue introduced by the fix for #681
1405 ITestRunner.StopRun throws exception of type 'System.MissingMethodException'
1406 TextCapture is not threadsafe but is used to intercept calls that are expected to be threadsafe
1410 Make OutFile and ErrFile streamwriters synchronized
1413 Switch console to use a local engine

NUnit 3.2 - March 5, 2016

Framework

Added an Order attribute that defines the order in which tests are run
Added Assert.ThrowsAsync for testing if async methods throw an exception
You can now compare unlike collections using Is.EquivalentTo().Using(...)
Added the ability to add custom message formatters to MsgUtils
TestCaseSourceAttribute now optionally takes an array of parameters that can be passed to the source method
Added Is.Zero and Is.Not.Zero to the fluent syntax as a shorter option for Is.EqualTo(0) and Is.Not.EqualTo(0)

Engine

Engine extensions can be installed via NuGet packages

Issues Resolved

170 Test Order Attribute
300 Create an NUnit Visual Studio Template
464 Async delegate assertions
532 Batch runner for Silverlight tests
533 Separate NUnitLite runner and autorunner
681 NUnit agent cannot resolve test dependency assemblies when mixed mode initialization runs in the default AppDomain
793 Replace CoreEngine by use of Extensions
907 Console report tests are too fragile
922 Wrap Console in NUnitLite
930 Switch from MSBuild based build system to Cake
981 Define NUnit Versioning for post-3.0 Development
1004 Poor formatting of results for Assert.AreEqual(DateTimeOffset, DateTimeOffset)
1018 ArgumentException when 2.x version of NUnit Framework is in the bin directory
1022 Support Comparing Unlike Collections using Is.EquivalentTo().Using(...)
1044 Re-order Test Summary Errors/Failures
1066 ApartmentAttribute and TestCaseAttribute(s) do not work together
1103 Can't use TestCaseData from base class
1109 NullReferenceException when using inherited property for ValueSource
1113 Console runner and xml output consistency
1117 Fix misbehaviour of Throws.Exception with non-void returning functions
1120 NUnitProject should parse .nunit project files containing Xml Declarations
1121 Usage of field set to null as value source leads to somewhat cryptic error
1122 Region may be disposed before test delegate is executed
1133 Provide a way to install extensions as nuget packages
1136 Don't allow V2 framework to update in V2 driver tests
1171 A bug when using Assert.That() with Is.Not.Empty
1185 Engine finds .NET 4.0 Client Profile twice
1187 ITestAssemblyRunner.StopRun as implemented by NUnitTestAssemblyRunner
1195 name attribute in test-suite and test-results element of output xml is different to nunit 2.6.4 using nunit2-format
1196 Custom value formatter for v3 via MsgUtils
1210 Available runtimes issues
1230 Add ability for testcasedatasource to have parameters passed to methods
1233 Add TestAssemblyRunner tests to both portable and silverlight builds
1234 Have default NUnitLite Runner Program.cs return exit code
1236 Make Appveyor NuGet feed more useable
1246 Introduce Is.Zero syntax to test for zero
1252 Exception thrown when any assembly is not found
1261 TypeHelper.GetDisplayName generates the wrong name for generic types with nested classes
1278 Fix optional parameters in TestCaseAttribute
1282 TestCase using Params Behaves Oddly
1283 Engine should expose available frameworks.
1286 value of the time attribute in nunit2 outputs depends on the machine culture
1297 NUnit.Engine nuget package improvements
1301 Assert.AreNotSame evaluates ToString unnecessarily

NUnit 3.0.1 - December 1, 2015

Console Runner

The Nunit.Runners NuGet package was updated to become a meta-package that pulls in the NUnit.Console package
Reinstated the –pause command line option that will display a message box allowing you to attach a debugger if the –debug option does not work

Issues Resolved

994 Add max number of Agents to the NUnit project file
1014 Ensure NUnit API assembly updates with MSI installs
1024 Added –pause flag to console runner
1030 Update Nunit.Runners package to 3.0
1033 "No arguments were provided" with Theory and Values combination
1035 Check null arguments
1037 Async tests not working on Windows 10 Universal
1041 NUnit2XmlResult Writer is reporting Sucess when test fails
1042 NUnit2 reports on 3.0 is different than 2.6.4
1046 FloatingPointNumerics.AreAlmostEqualUlps throws OverflowException
1049 Cannot select Generic tests from command line
1050 Do not expose System.Runtime.CompilerServices.ExtensionAttribute to public
1054 Create nuget feeds for CI builds on Appveyor
1055 nunit3 console runner –where option does not return error on invalid selection string
1060 Remove "Version 3" from NUnit Nuget Package
1061 Nunit30Settings.xml becomes corrupted
1062 Console.WriteLine statements in "OneTimeSetUp" and "OneTimeTearDown" annotated methods are not directed to the console when using nunit3-console.exe runner
1063 Error in Random Test

NUnit 3.0.0 Final Release - November 15, 2015

Issues Resolved

635 Mono 4.0 Support

NUnit 3.0.0 Release Candidate 3 - November 13, 2015

Engine

The engine now only sets the config file for project.nunit to project.config if project.config exists. Otherwise, each assembly uses its own config, provided it is run in a separate AppDomain by itself.

NOTE: It is not possible for multiple assemblies in the same AppDomain to use different configs. This is not an NUnit limitation, it's just how configs work!

Issues Resolved

856 Extensions support for third party runners in NUnit 3.0
1003 Delete TeamCityEventHandler as it is not used
1015 Specifying .nunit project and –framework on command line causes crash
1017 Remove Assert.Multiple from framework

NUnit 3.0.0 Release Candidate 2 - November 8, 2015

Engine

The IDriverFactory extensibility interface has been modified.

Issues Resolved

970 Define PARALLEL in CF build of nunitlite
978 It should be possible to determine version of NUnit using nunit console tool
983 Inconsistent return codes depending on ProcessModel
986 Update docs for parallel execution
988 Don't run portable tests from NUnit Console
990 V2 driver is passing invalid filter elements to NUnit
991 Mono.Options should not be exposed to public directly
993 Give error message when a regex filter is used with NUnit V2
997 Add missing XML Documentation
1008 NUnitLite namespace not updated in the NuGet Packages

NUnit 3.0.0 Release Candidate - November 1, 2015

Framework

The portable build now supports ASP.NET 5 and the new Core CLR.

NOTE: The nunit3-console runner cannot run tests that reference the portable build. You may run such tests using NUnitLite or a platform-specific runner.
TestCaseAttribute and TestCaseData now allow modifying the test name without replacing it entirely.
The Silverlight packages are now separate downloads.

NUnitLite

The NUnitLite runner now produces the same output display and XML results as the console runner.

Engine

The format of the XML result file has been finalized and documented.

Console Runner

The console runner program is now called nunit3-console.
Console runner output has been modified so that the summary comes at the end, to reduce the need for scrolling.

Issues Resolved

59 Length of generated test names should be limited
68 Customization of test case name generation
404 Split tests between nunitlite.runner and nunit.framework
575 Add support for ASP.NET 5 and the new Core CLR
783 Package separately for Silverlight
833 Intermittent failure of WorkItemQueueTests.StopQueue_WithWorkers
859 NUnit-Console output - move Test Run Summary to end
867 Remove Warnings from Ignored tests
868 Review skipped tests
887 Move environment and settings elements to the assembly suite in the result file
899 Colors for ColorConsole on grey background are too light
904 InternalPreserveStackTrace is not supported on all Portable platforms
914 Unclear error message from console runner when assembly has no tests
916 Console runner dies when test agent dies
918 Console runner –where parameter is case sensitive
920 Remove addins\nunit.engine.api.dll from NuGet package
929 Rename nunit-console.exe
931 Remove beta warnings from NuGet packages
936 Explicit skipped tests not displayed
939 Installer complains about .NET even if already installed
940 Confirm or modify list of packages for release
947 Breaking API change in ValueSourceAttribute
949 Update copyright in NUnit Console
954 NUnitLite XML output is not consistent with the engine's
955 NUnitLite does not display the where clause
959 Restore filter options for NUnitLite portable build
960 Intermittent failure of CategoryFilterTests
967 Run Settings Report is not being displayed.

NUnit 3.0.0 Beta 5 - October 16, 2015

Framework

Parameterized test cases now support nullable arguments.
The NUnit framework may now be built for the .NET Core framework. Note that this is only available through building the source code. A binary will be available in the next release.

Engine

The engine now runs multiple test assemblies in parallel by default
The output XML now includes more information about the test run, including the text of the command used, any engine settings and the filter used to select tests.
Extensions may now specify data in an identifying attribute, for use by the engine in deciding whether to load that extension.

Console Runner

The console now displays all settings used by the engine to run tests as well as the filter used to select tests.
The console runner accepts a new option –maxagents. If multiple assemblies are run in separate processes, this value may be used to limit the number that are executed simultaneously in parallel.
The console runner no longer accepts the –include and –exclude options. Instead, the new –where option provides a more general way to express which tests will be executed, such as –where "cat==Fast && Priority==High". See the docs for details of the syntax.
The new –debug option causes NUnit to break in the debugger immediately before tests are run. This simplifies debugging, especially when the test is run in a separate process.

Issues Resolved

41 Check for zeroes in Assert messages
254 Finalize XML format for test results
275 NUnitEqualityComparer fails to compare IEquatable<T> where second object is derived from T
304 Run test Assemblies in parallel
374 New syntax for selecting tests to be run
515 OSPlatform.IsMacOSX doesn't work
573 nunit-console hangs on Mac OS X after all tests have run
669 TeamCity service message should have assembly name as a part of test name.
689 The TeamCity service message "testFinished" should have an integer value in the "duration" attribute
713 Include command information in XML
719 We have no way to configure tests for several assemblies using NUnit project file and the common installation from msi file
735 Workers number in xml report file cannot be found
784 Build Portable Framework on Linux
790 Allow Extensions to provide data through an attribute
794 Make it easier to debug tests as well as NUnit itself
801 NUnit calls Dispose multiple times
814 Support nullable types with TestCase
818 Possible error in Merge Pull Request #797
821 Wrapped method results in loss of result information
822 Test for Debugger in NUnitTestAssemblyRunner probably should not be in CF build
824 Remove unused System.Reflection using statements
826 Randomizer uniqueness tests fail randomly!
828 Merge pull request #827 (issue 826)
830 Add ability to report test results synchronously to test runners
837 Enumerators not disposed when comparing IEnumerables
840 Add missing copyright notices
844 Pull Request #835 (Issue #814) does not build in CF
847 Add new –process:inprocess and –inprocess options
850 Test runner fails if test name contains invalid xml characters
851 'Exclude' console option is not working in NUnit Lite
853 Cannot run NUnit Console from another directory
860 Use CDATA section for message, stack-trace and output elements of XML
863 Eliminate core engine
865 Intermittent failures of StopWatchTests
869 Tests that use directory separator char to determine platform misreport Linux on MaxOSX
870 NUnit Console Runtime Environment misreports on MacOSX
874 Add .NET Core Framework
878 Cannot exclude MacOSX or XBox platforms when running on CF
892 Fixed test runner returning early when executing more than one test run.
894 Give nunit.engine and nunit.engine.api assemblies strong names
896 NUnit 3.0 console runner not placing test result xml in –work directory

NUnit 3.0.0 Beta 4 - August 25, 2015

Framework

A new RetryAttribute allows retrying of failing tests.
New SupersetConstraint and Is.SupersetOf syntax complement SubsetConstraint.
Tests skipped due to ExplicitAttribute are now reported as skipped.

Engine

We now use Cecil to examine assemblies prior to loading them.
Extensions are no longer based on Mono.Addins but use our own extension framework.

Issues Resolved

125 3rd-party dependencies should be downloaded on demand
283 What should we do when a user extension does something bad?
585 RetryAttribute
642 Restructure MSBuild script
649 Change how we zip packages
654 ReflectionOnlyLoad and ReflectionOnlyLoadFrom
664 Invalid "id" attribute in the report for case "test started"
685 In the some cases when tests cannot be started NUnit returns exit code "0"
728 Missing Assert.That overload
741 Explicit Tests get run when using –exclude
746 Framework should send events for all tests
747 NUnit should apply attributes even if test is non-runnable
749 Review Use of Mono.Addins for Engine Extensibility
750 Include Explicit Tests in Test Results
753 Feature request: Is.SupersetOf() assertion constraint
755 TimeOut attribute doesn't work with TestCaseSource Attribute
757 Implement some way to wait for execution to complete in ITestEngineRunner
760 Packaging targets do not run on Linux
766 Added overloads for True()/False() accepting booleans
778 Build and build.cmd scripts invoke nuget.exe improperly
780 Teamcity fix
782 No sources for 2.6.4

NUnit 3.0.0 Beta 3 - July 15, 2015

Framework

The RangeAttribute has been extended to support more data types including uint, long and ulong
Added platform support for Windows 10 and fixed issues with Windows 8 and 8.1 support
Added async support to the portable version of NUnit Framework
The named members of the TestCaseSource and ValueSource attributes must now be static.
RandomAttribute has been extended to add support for new data types including uint, long, ulong, short, ushort, float, byte and sbyte
TestContext.Random has also been extended to add support for new data types including uint, long, ulong, short, ushort, float, byte, sbyte and decimal
Removed the dependency on Microsoft.Bcl.Async from the NUnit Framework assembly targeting .NET 4.0. If you want to write async tests in .NET 4.0, you will need to reference the NuGet package yourself.
Added a new TestFixtureSource attribute which is the equivalent to TestCaseSource but provides for instantiation of fixtures.
Significant improvements have been made in how NUnit deduces the type arguments of generic methods based on the arguments provided.

Engine

If the target framework is not specified, test assemblies that are compiled to target .NET 4.5 will no longer run in .NET 4.0 compatibility mode

Console

If the console is run without arguments, it will now display help

Issues Resolved

47 Extensions to RangeAttribute
237 System.Uri .ctor works not properly under Nunit
244 NUnit should properly distinguish between .NET 4.0 and 4.5
310 Target framework not specified on the AppDomain when running against .Net 4.5
321 Rationalize how we count tests
472 Overflow exception and DivideByZero exception from the RangeAttribute
524 int and char do not compare correctly?
539 Truncation of string arguments
544 AsyncTestMethodTests for 4.5 Framework fails frequently on Travis CI
656 Unused parameter in Console.WriteLine found
670 Failing Tests in TeamCity Build
673 Ensure proper disposal of engine objects
674 Engine does not release test assemblies
679 Windows 10 Support
682 Add Async Support to Portable Framework
683 Make FrameworkController available in portable build
687 TestAgency does not launch agent process correctly if runtime type is not specified (i.e. v4.0)
692 PlatformAttribute_OperatingSystemBitNess fails when running in 32-bit process
693 Generic Test<T> Method cannot determine type arguments for fixture when passed as IEnumerable<T>
698 Require TestCaseSource and ValueSource named members to be static
703 TeamCity non-equal flowid for 'testStarted' and 'testFinished' messages
712 Extensions to RandomAttribute
715 Provide a data source attribute at TestFixture Level
718 RangeConstraint gives error with from and two args of differing types
723 Does nunit.nuspec require dependency on Microsoft.Bcl.Async?
724 Adds support for Nullable<bool> to Assert.IsTrue and Assert.IsFalse
734 Console without parameters doesn't show help

NUnit 3.0.0 Beta 2 - May 12, 2015

Framework

The Compact Framework version of the framework is now packaged separately and will be distributed as a ZIP file and as a NuGet package.
The NUnit 2.x RepeatAttribute was added back into the framework.
Added Throws.ArgumentNullException
Added GetString methods to NUnit.Framework.Internal.RandomGenerator to create repeatable random strings for testing
When checking the equality of DateTimeOffset, you can now use the WithSameOffset modifier
Some classes intended for internal usage that were public for testing have now been made internal. Additional classes will be made internal for the final 3.0 release.

Engine

Added a core engine which is a non-extensible, minimal engine for use by devices and similar situations where reduced functionality is compensated for by reduced size and simplicity of usage. See https://github.com/nunit/dev/wiki/Core-Engine for more information.

Issues Resolved

22 Add OSArchitecture Attribute to Environment node in result xml
24 Assert on Dictionary Content
48 Explicit seems to conflict with Ignore
168 Create NUnit 3.0 documentation
196 Compare DateTimeOffsets including the offset in the comparison
217 New icon for the 3.0 release
316 NUnitLite TextUI Runner
320 No Tests found: Using parametrized Fixture and TestCaseSource
360 Better exception message when using non-BCL class in property
454 Rare registry configurations may cause NUnit to fail
478 RepeatAttribute
481 Testing multiple assemblies in nunitlite
538 Potential bug using TestContext in constructors
546 Enable Parallel in NUnitLite/CF (or more) builds
551 TextRunner not passing the NumWorkers option to the ITestAssemblyRunner
556 Executed tests should always return a non-zero duration
559 Fix text of NuGet packages
560 Fix PackageVersion property on wix install projects
562 Program.cs in NUnitLite NuGet package is incorrect
564 NUnitLite Nuget package is Beta 1a, Framework is Beta 1
565 NUnitLite Nuget package adds Program.cs to a VB Project
568 Isolate packaging from building
570 ThrowsConstraint failure message should include stack trace of actual exception
576 Throws.ArgumentNullException would be nice
577 Documentation on some members of Throws falsely claims that they return TargetInvocationException constraints
579 No documentation for recommended usage of TestCaseSourceAttribute
580 TeamCity Service Message Uses Incorrect Test Name with NUnit2Driver
582 Test Ids Are Not Unique
583 TeamCity service messages to support parallel test execution
584 Non-runnable assembly has incorrect ResultState
609 Add support for integration with TeamCity
611 Remove unused –teamcity option from CF build of NUnitLite
612 MaxTime doesn't work when used for TestCase
621 Core Engine
622 nunit-console fails when use –output
628 Modify IService interface and simplify ServiceContext
631 Separate packaging for the compact framework
646 ConfigurationManager.AppSettings Params Return Null under Beta 1
648 Passing 2 or more test assemblies targeting > .NET 2.0 to nunit-console fails

NUnit 3.0.0 Beta 1 - March 25, 2015

General

There is now a master windows installer for the framework, engine and console runner.

Framework

We no longer create a separate framework build for .NET 3.5. The 2.0 and 3.5 builds were essentially the same, so the former should now be used under both runtimes.
A new Constraint, DictionaryContainsKeyConstraint, may be used to test that a specified key is present in a dictionary.
LevelOfParallelizationAttribute has been renamed to LevelOfParallelismAttribute.
The Silverlight runner now displays output in color and includes any text output created by the tests.
The class and method names of each test are included in the output xml where applicable.
String arguments used in test case names are now truncated to 40 rather than 20 characters.

Engine

The engine API has now been finalized. It permits specifying a minimum version of the engine that a runner is able to use. The best installed version of the engine will be loaded. Third-party runners may override the selection process by including a copy of the engine in their installation directory and specifying that it must be used.
The V2 framework driver now uses the event listener and test listener passed to it by the runner. This corrects several outstanding issues caused by events not being received and allows selecting V2 tests to be run from the command-line, in the same way that V3 tests are selected.

Console

The console now defaults to not using shadowcopy. There is a new option –shadowcopy to turn it on if needed.

Issues Resolved

224 Silverlight Support
318 TestActionAttribute: Retrieving the TestFixture
428 Add ExpectedExceptionAttribute to C# samples
440 Automatic selection of Test Engine to use
450 Create master install that includes the framework, engine and console installs
477 Assert does not work with ArraySegment
482 nunit-console has multiple errors related to -framework option
483 Adds constraint for asserting that a dictionary contains a particular key
484 Missing file in NUnit.Console nuget package
485 Can't run v2 tests with nunit-console 3.0
487 NUnitLite can't load assemblies by their file name
488 Async setup and teardown still don't work
497 Framework installer shold register the portable framework
504 Option –workers:0 is ignored
508 Travis builds with failure in engine tests show as successful
509 Under linux, not all mono profiles are listed as available
512 Drop the .NET 3.5 build
517 V2 FrameworkDriver does not make use of passed in TestEventListener
523 Provide an option to disable shadowcopy in NUnit v3
528 V2 FrameworkDriver does not make use of passed in TestFilter
530 Color display for Silverlight runner
531 Display text output from tests in Silverlight runner
534 Add classname and methodname to test result xml
541 Console help doesn't indicate defaults

NUnit 3.0.0 Alpha 5 - January 30, 2015

General

A Windows installer is now included in the release packages.

Framework

TestCaseAttribute now allows arguments with default values to be omitted. Additionaly, it accepts a Platform property to specify the platforms on which the test case should be run.
TestFixture and TestCase attributes now enforce the requirement that a reason needs to be provided when ignoring a test.
SetUp, TearDown, OneTimeSetUp and OneTimeTearDown methods may now be async.
String arguments over 20 characters in length are truncated when used as part of a test name.

Engine

The engine is now extensible using Mono.Addins. In this release, extension points are provided for FrameworkDrivers, ProjectLoaders and OutputWriters. The following addins are bundled as a part of NUnit:
- A FrameworkDriver that allows running NUnit V2 tests under NUnit 3.0.
- ProjectLoaders for NUnit and Visual Studio projects.
- An OutputWriter that creates XML output in NUnit V2 format.
DomainUsage now defaults to Multiple if not specified by the runner

Console

New options supported:
- testlist provides a list of tests to run in a file
- stoponerror indicates that the run should terminate when any test fails.

Issues Resolved

20 TestCaseAttribute needs Platform property.
60 NUnit should support async setup, teardown, fixture setup and fixture teardown.
257 TestCaseAttribute should not require parameters with default values to be specified.
266 Pluggable framework drivers.
368 Create addin model.
369 Project loader addins
370 OutputWriter addins
403 Move ConsoleOptions.cs and Options.cs to Common and share...
419 Create Windows Installer for NUnit.
427 [TestFixture(Ignore=true)] should not be allowed.
437 Errors in tests under Linux due to hard-coded paths.
441 NUnit-Console should support –testlist option
442 Add –stoponerror option back to nunit-console.
456 Fix memory leak in RuntimeFramework.
459 Remove the Mixed Platforms build configuration.
468 Change default domain usage to multiple.
469 Truncate string arguments in test names in order to limit the length.

NUnit 3.0.0 Alpha 4 - December 30, 2014

Framework

ApartmentAttribute has been added, replacing STAAttribute and MTAAttribute.
Unnecessary overloads of Assert.That and Assume.That have been removed.
Multiple SetUpFixtures may be specified in a single namespace.
Improvements to the Pairwise strategy test case generation algorithm.
The new NUnitLite runner –testlist option, allows a list of tests to be kept in a file.

Engine

A driver is now included, which allows running NUnit 2.x tests under NUnit 3.0.
The engine can now load and run tests specified in a number of project formats:
- NUnit (.nunit)
- Visual Studio C# projects (.csproj)
- Visual Studio F# projects (.vjsproj)
- Visual Studio Visual Basic projects (.vbproj)
- Visual Studio solutions (.sln)
- Legacy C++ and Visual JScript projects (.csproj and .vjsproj) are also supported
- Support for the current C++ format (.csxproj) is not yet available
Creation of output files like TestResult.xml in various formats is now a service of the engine, available to any runner.

Console

The command-line may now include any number of assemblies and/or supported projects.

Issues Resolved

37 Multiple SetUpFixtures should be permitted on same namespace
210 TestContext.WriteLine in an AppDomain causes an error
227 Add support for VS projects and solutions
231 Update C# samples to use NUnit 3.0
233 Update F# samples to use NUnit 3.0
234 Update C++ samples to use NUnit 3.0
265 Reorganize console reports for nunit-console and nunitlite
299 No full path to assembly in XML file under Compact Framework
301 Command-line length
363 Make Xml result output an engine service
377 CombiningStrategyAttributes don't work correctly on generic methods
388 Improvements to NUnitLite runner output
390 Specify exactly what happens when a test times out
396 ApartmentAttribute
397 CF nunitlite runner assembly has the wrong name
407 Assert.Pass() with ]]> in message crashes console runner
414 Simplify Assert overloads
416 NUnit 2.x Framework Driver
417 Complete work on NUnit projects
420 Create Settings file in proper location

NUnit 3.0.0 Alpha 3 - November 29, 2014

Breaking Changes

NUnitLite tests must reference both the nunit.framework and nunitlite assemblies.

Framework

The NUnit and NUnitLite frameworks have now been merged. There is no longer any distinction between them in terms of features, although some features are not available on all platforms.
The release includes two new framework builds: compact framework 3.5 and portable. The portable library is compatible with .NET 4.5, Silverlight 5.0, Windows 8, Windows Phone 8.1, Windows Phone Silverlight 8, Mono for Android and MonoTouch.
A number of previously unsupported features are available for the Compact Framework:
- Generic methods as tests
- RegexConstraint
- TimeoutAttribute
- FileAssert, DirectoryAssert and file-related constraints

Engine

The logic of runtime selection has now changed so that each assembly runs by default in a separate process using the runtime for which it was built.
On 64-bit systems, each test process is automatically created as 32-bit or 64-bit, depending on the platform specified for the test assembly.

Console

The console runner now runs tests in a separate process per assembly by default. They may still be run in process or in a single separate process by use of command-line options.
The console runner now starts in the highest version of the .NET runtime available, making it simpler to debug tests by specifying that they should run in-process on the command-line.
The -x86 command-line option is provided to force execution in a 32-bit process on a 64-bit system.
A writeability check is performed for each output result file before trying to run the tests.
The -teamcity option is now supported.

Issues Resolved

12 Compact framework should support generic methods
145 NUnit-console fails if test result message contains invalid xml characters
155 Create utility classes for platform-specific code
223 Common code for NUnitLite console runner and NUnit-Console
225 Compact Framework Support
238 Improvements to running 32 bit tests on a 64 bit system
261 Add portable nunitlite build
284 NUnitLite Unification
293 CF does not have a CurrentDirectory
306 Assure NUnit can write resultfile
308 Early disposal of runners
309 NUnit-Console should support incremental output under TeamCity
325 Add RegexConstraint to compact framework build
326 Add TimeoutAttribute to compact framework build
327 Allow generic test methods in the compact framework
328 Use .NET Stopwatch class for compact framework builds
331 Alpha 2 CF does not build
333 Add parallel execution to desktop builds of NUnitLite
334 Include File-related constraints and syntax in NUnitLite builds
335 Re-introduce 'Classic' NUnit syntax in NUnitLite
336 Document use of separate obj directories per build in our projects
337 Update Standard Defines page for .NET 3.0
341 Move the NUnitLite runners to separate assemblies
367 Refactor XML Escaping Tests
372 CF Build TestAssemblyRunnerTests
373 Minor CF Test Fixes
378 Correct documentation for PairwiseAttribute
386 Console Output Improvements

NUnit 3.0.0 Alpha 2 - November 2, 2014

Breaking Changes

The console runner no longer displays test results in the debugger.
The NUnitLite compact framework 2.0 build has been removed.
All addin support has been removed from the framework. Documentation of NUnit 3.0 extensibility features will be published in time for the beta release. In the interim, please ask for support on the nunit-discuss list.

General

A separate solution has been created for Linux
We now have continuous integration builds under both Travis and Appveyor
The compact framework 3.5 build is now working and will be supported in future releases.

New Features

The console runner now automatically detects 32- versus 64-bit test assemblies.
The NUnitLite report output has been standardized to match that of nunit-console.
The NUnitLite command-line has been standardized to match that of nunit-console where they share the same options.
Both nunit-console and NUnitLite now display output in color.
ActionAttributes now allow specification of multiple targets on the attribute as designed. This didn't work in the first alpha.
OneTimeSetUp and OneTimeTearDown failures are now shown on the test report. Individual test failures after OneTimeSetUp failure are no longer shown.
The console runner refuses to run tests build with older versions of NUnit. A plugin will be available to run older tests in the future.

Issues Resolved

222 Color console for NUnitLite
229 Timing failures in tests
241 Remove reference to Microslft BCL packages
243 Create solution for Linux
245 Multiple targets on action attributes not implemented
246 C++ tests do not compile in VS2013
247 Eliminate trace display when running tests in debug
255 Add new result states for more precision in where failures occur
256 ContainsConstraint break when used with AndConstraint
264 Stacktrace displays too many entries
269 Add manifest to nunit-console and nunit-agent
270 OneTimeSetUp failure results in too much output
271 Invalid tests should be treated as errors
274 Command line options should be case insensitive
276 NUnit-console should not reference nunit.framework
278 New result states (ChildFailure and SetupFailure) break NUnit2XmlOutputWriter
282 Get tests for NUnit2XmlOutputWriter working
288 Set up Appveyor CI build
290 Stack trace still displays too many items
315 NUnit 3.0 alpha: Cannot run in console on my assembly
319 CI builds are not treating test failures as failures of the build
322 Remove Stopwatch tests where they test the real .NET Stopwatch

NUnit 3.0.0 Alpha 1 - September 22, 2014

Breaking Changes

Legacy suites are no longer supported
Assert.NullOrEmpty is no longer supported (Use Is.Null.Or.Empty)

General

MsBuild is now used for the build rather than NAnt
The framework test harness has been removed now that nunit-console is at a point where it can run the tests.

New Features

Action Attributes have been added with the same features as in NUnit 2.6.3.
TestContext now has a method that allows writing to the XML output.
TestContext.CurrentContext.Result now provides the error message and stack trace during teardown.
Does prefix operator supplies several added constraints.

Issues Resolved

6 Log4net not working with NUnit
13 Standardize commandline options for nunitlite runner
17 No allowance is currently made for nullable arguents in TestCase parameter conversions
33 TestCaseSource cannot refer to a parameterized test fixture
54 Store message and stack trace in TestContext for use in TearDown
111 Implement Changes to File, Directory and Path Assertions
112 Implement Action Attributes
156 Accessing multiple AppDomains within unit tests result in SerializationException
163 Add –trace option to NUnitLite
167 Create interim documentation for the alpha release
169 Design and implement distribution of NUnit packages
171 Assert.That should work with any lambda returning bool
175 Test Harness should return an error if any tests fail
180 Errors in Linux CI build
181 Replace NAnt with MsBuild / XBuild
183 Standardize commandline options for test harness
188 No output from NUnitLite when selected test is not found
189 Add string operators to Does prefix
193 TestWorkerTests.BusyExecutedIdleEventsCalledInSequence fails occasionally
197 Deprecate or remove Assert.NullOrEmpty
202 Eliminate legacy suites
203 Combine framework, engine and console runner in a single solution and repository
209 Make Ignore attribute's reason mandatory
215 Running 32-bit tests on a 64-bit OS
219 Teardown failures are not reported

Console Issues Resolved (Old nunit-console project, now combined with nunit)

2 Failure in TestFixtureSetUp is not reported correctly
5 CI Server for nunit-console
6 System.NullReferenceException on start nunit-console-x86
21 NUnitFrameworkDriverTests fail if not run from same directory
24 'Debug' value for /trace option is deprecated in 2.6.3
38 Confusing Excluded categories output

NUnit 2.9.7 - August 8, 2014

Breaking Changes

NUnit no longer supports void async test methods. You should use a Task return Type instead.
The ExpectedExceptionAttribute is no longer supported. Use Assert.Throws() or Assert.That(..., Throws) instead for a more precise specification of where the exception is expected to be thrown.

New Features

Parallel test execution is supported down to the Fixture level. Use ParallelizableAttribute to indicate types that may be run in parallel.
Async tests are supported for .NET 4.0 if the user has installed support for them.
A new FileExistsConstraint has been added along with FileAssert.Exists and FileAssert.DoesNotExist
ExpectedResult is now supported on simple (non-TestCase) tests.
The Ignore attribute now takes a named parameter Until, which allows specifying a date after which the test is no longer ignored.
The following new values are now recognized by PlatformAttribute: Win7, Win8, Win8.1, Win2012Server, Win2012ServerR2, NT6.1, NT6.2, 32-bit, 64-bit
TimeoutAttribute is now supported under Silverlight
ValuesAttribute may be used without any values on an enum or boolean argument. All possible values are used.
You may now specify a tolerance using Within when testing equality of DateTimeOffset values.
The XML output now includes a start and end time for each test.

Issues Resolved

8 [SetUpFixture] is not working as expected
14 CI Server for NUnit Framework
21 Is.InRange Constraint Ambiguity
27 Values attribute support for enum types
29 Specifying a tolerance with "Within" doesn't work for DateTimeOffset data types
31 Report start and end time of test execution
36 Make RequiresThread, RequiresSTA, RequiresMTA inheritable
45 Need of Enddate together with Ignore
55 Incorrect XML comments for CollectionAssert.IsSubsetOf
62 Matches(Constraint) does not work as expected
63 Async support should handle Task return type without state machine
64 AsyncStateMachineAttribute should only be checked by name
65 Update NUnit Wiki to show the new location of samples
66 Parallel Test Execution within test assemblies
67 Allow Expected Result on simple tests
70 EquivalentTo isn't compatible with IgnoreCase for dictioneries
75 Async tests should be supported for projects that target .NET 4.0
82 nunit-framework tests are timing out on Linux
83 Path-related tests fail on Linux
85 Culture-dependent NUnit tests fail on non-English machine
88 TestCaseSourceAttribute documentation
90 EquivalentTo isn't compatible with IgnoreCase for char
100 Changes to Tolerance definitions
110 Add new platforms to PlatformAttribute
113 Remove ExpectedException
118 Workarounds for missing InternalPreserveStackTrace in mono
121 Test harness does not honor the –worker option when set to zero
129 Standardize Timeout in the Silverlight build
130 Add FileAssert.Exists and FileAssert.DoesNotExist
132 Drop support for void async methods
153 Surprising behavior of DelayedConstraint pollingInterval
161 Update API to support stopping an ongoing test run

NOTE: Bug Fixes below this point refer to the number of the bug in Launchpad.

NUnit 2.9.6 - October 4, 2013

Main Features

Separate projects for nunit-console and nunit.engine
New builds for .NET 4.5 and Silverlight
TestContext is now supported
External API is now stable; internal interfaces are separate from API
Tests may be run in parallel on separate threads
Solutions and projects now use VS2012 (except for Compact framework)

Bug Fixes

463470 We should encapsulate references to pre-2.0 collections
498690 Assert.That() doesn't like properties with scoped setters
501784 Theory tests do not work correctly when using null parameters
531873 Feature: Extraction of unit tests from NUnit test assembly and calling appropriate one
611325 Allow Teardown to detect if last test failed
611938 Generic Test Instances disappear
655882 Make CategoryAttribute inherited
664081 Add Server2008 R2 and Windows 7 to PlatformAttribute
671432 Upgrade NAnt to Latest Release
676560 Assert.AreEqual does not support IEquatable<T>
691129 Add Category parameter to TestFixture
697069 Feature request: dynamic location for TestResult.xml
708173 NUnit's logic for comparing arrays - use Comparer<T[]> if it is provided
709062 "System.ArgumentException : Cannot compare" when the element is a list
712156 Tests cannot use AppDomain.SetPrincipalPolicy
719184 Platformdependency in src/ClientUtilities/util/Services/DomainManager.cs:40
719187 Using Path.GetTempPath() causes conflicts in shared temporary folders
735851 Add detection of 3.0, 3.5 and 4.0 frameworks to PlatformAttribute
736062 Deadlock when EventListener performs a Trace call + EventPump synchronisation
756843 Failing assertion does not show non-linear tolerance mode
766749 net-2.0-console-x86.exe.config should have a <startup/> element and also enable loadFromRemoteSources
770471 Assert.IsEmpty does not support IEnumerable
785460 Add Category parameter to TestCaseSourceAttribute
787106 EqualConstraint provides inadequate failure information for IEnumerables
792466 TestContext MethodName
794115 HashSet incorrectly reported
800089 Assert.Throws() hides details of inner AssertionException
848713 Feature request: Add switch for console to break on any test case error
878376 Add 'Exactly(n)' to the NUnit constraint syntax
882137 When no tests are run, higher level suites display as Inconclusive
882517 NUnit 2.5.10 doesn't recognize TestFixture if there are only TestCaseSource inside
885173 Tests are still executed after cancellation by user
885277 Exception when project calls for a runtime using only 2 digits
885604 Feature request: Explicit named parameter to TestCaseAttribute
890129 DelayedConstraint doesn't appear to poll properties of objects
892844 Not using Mono 4.0 profile under Windows
893919 DelayedConstraint fails polling properties on references which are initially null
896973 Console output lines are run together under Linux
897289 Is.Empty constraint has unclear failure message
898192 Feature Request: Is.Negative, Is.Positive
898256 IEnumerable<T> for Datapoints doesn't work
899178 Wrong failure message for parameterized tests that expect exceptions
904841 After exiting for timeout the teardown method is not executed
908829 TestCase attribute does not play well with variadic test functions
910218 NUnit should add a trailing separator to the ApplicationBase
920472 CollectionAssert.IsNotEmpty must dispose Enumerator
922455 Add Support for Windows 8 and Windows 2012 Server to PlatformAttribute
928246 Use assembly.Location instead of assembly.CodeBase
958766 For development work under TeamCity, we need to support nunit2 formatted output under direct-runner
1000181 Parameterized TestFixture with System.Type as constructor arguments fails
1000213 Inconclusive message Not in report output
1023084 Add Enum support to RandomAttribute
1028188 Add Support for Silverlight
1029785 Test loaded from remote folder failed to run with exception System.IODirectory
1037144 Add MonoTouch support to PlatformAttribute
1041365 Add MaxOsX and Xbox support to platform attribute
1057981 C#5 async tests are not supported
1060631 Add .NET 4.5 build
1064014 Simple async tests should not return Task<T>
1071164 Support async methods in usage scenarios of Throws constraints
1071343 Runner.Load fails on CF if the test assembly contains a generic method
1071861 Error in Path Constraints
1072379 Report test execution time at a higher resolution
1074568 Assert/Assume should support an async method for the ActualValueDelegate
1082330 Better Exception if SetCulture attribute is applied multiple times
1111834 Expose Random Object as part of the test context
1111838 Include Random Seed in Test Report
1172979 Add Category Support to nunitlite Runner
1203361 Randomizer uniqueness tests sometimes fail
1221712 When non-existing test method is specified in -test, result is still "Tests run: 1, Passed: 1"
1223294 System.NullReferenceException thrown when ExpectedExceptionAttribute is used in a static class
1225542 Standardize commandline options for test harness

Bug Fixes in 2.9.6 But Not Listed Here in the Release

541699 Silverlight Support
1222148 /framework switch does not recognize net-4.5
1228979 Theories with all test cases inconclusive are not reported as failures

NUnit 2.9.5 - July 30, 2010

Bug Fixes

483836 Allow non-public test fixtures consistently
487878 Tests in generic class without proper TestFixture attribute should be invalid
498656 TestCase should show array values in GUI
513989 Is.Empty should work for directories
519912 Thread.CurrentPrincipal Set In TestFixtureSetUp Not Maintained Between Tests
532488 constraints from ConstraintExpression/ConstraintBuilder are not reusable
590717 categorie contains dash or trail spaces is not selectable
590970 static TestFixtureSetUp/TestFixtureTearDown methods in base classes are not run
595683 NUnit console runner fails to load assemblies
600627 Assertion message formatted poorly by PropertyConstraint
601108 Duplicate test using abstract test fixtures
601645 Parametered test should try to convert data type from source to parameter
605432 ToString not working properly for some properties
606548 Deprecate Directory Assert in 2.5 and remove it in 3.0
608875 NUnit Equality Comparer incorrectly defines equality for Dictionary objects

NUnit 2.9.4 - May 4, 2010

Bug Fixes

419411 Fixture With No Tests Shows as Non-Runnable
459219 Changes to thread princpal cause failures under .NET 4.0
459224 Culture test failure under .NET 4.0
462019 Line endings needs to be better controlled in source
462418 Assume.That() fails if I specify a message
483845 TestCase expected return value cannot be null
488002 Should not report tests in abstract class as invalid
490679 Category in TestCaseData clashes with Category on ParameterizedMethodSuite
501352 VS2010 projects have not been updated for new directory structure
504018 Automatic Values For Theory Test Parameters Not Provided For bool And enum
505899 'Description' parameter in both TestAttribute and TestCaseAttribute is not allowed
523335 TestFixtureTearDown in static class not executed
556971 Datapoint(s)Attribute should work on IEnumerable<T> as well as on Arrays
561436 SetCulture broken with 2.5.4
563532 DatapointsAttribute should be allowed on properties and methods

NUnit 2.9.3 - October 26, 2009

Main Features

Created new API for controlling framework
New builds for .Net 3.5 and 4.0, compact framework 3.5
Support for old style tests has been removed
New adhoc runner for testing the framework

Bug Fixes

432805 Some Framework Tests don't run on Linux
440109 Full Framework does not support "Contains"

NUnit 2.9.2 - September 19, 2009

Main Features

NUnitLite code is now merged with NUnit
Added NUnitLite runner to the framework code
Added Compact framework builds

Bug Fixes

430100 Assert.Catch<T> should return T
432566 NUnitLite shows empty string as argument
432573 Mono test should be at runtime

NUnit 2.9.1 - August 27, 2009

General

Created a separate project for the framework and framework tests
Changed license to MIT / X11
Created Windows installer for the framework

Bug Fixes

400502 NUnitEqualityComparer.StreamsEqual fails for same stream
400508 TestCaseSource attirbute is not working when Type is given
400510 TestCaseData variable length ctor drops values
417557 Add SetUICultureAttribute from NUnit 2.5.2
417559 Add Ignore to TestFixture, TestCase and TestCaseData
417560 Merge Assert.Throws and Assert.Catch changes from NUnit 2.5.2
417564 TimeoutAttribute on Assembly