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| --- | ||
| title: ".NET docs: What's new for October 2024" | ||
| description: "What's new in the .NET docs for October 2024." | ||
| ms.custom: October-2024 | ||
| ms.date: 11/01/2024 | ||
| title: ".NET docs: What's new for January 2025" | ||
| description: "What's new in the .NET docs for January 2025." | ||
| ms.custom: January-2025 | ||
| ms.date: 02/01/2025 | ||
| --- | ||
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| # .NET docs: What's new for October 2024 | ||
| # .NET docs: What's new for January 2025 | ||
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| Welcome to what's new in the .NET docs for October 2024. This article lists some of the major changes to docs during this period. | ||
| Welcome to what's new in the .NET docs for January 2025. This article lists some of the major changes to docs during this period. | ||
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| ## .NET breaking changes | ||
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| ### New articles | ||
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| - [BinaryReader.GetString() returns \uFFFD on malformed sequences](../core/compatibility/core-libraries/9.0/binaryreader.md) | ||
| - [CET supported by default](../core/compatibility/interop/9.0/cet-support.md) | ||
| - [EnumConverter validates registered types to be enum](../core/compatibility/core-libraries/9.0/enumconverter.md) | ||
| - [New security analyzers](../core/compatibility/windows-forms/9.0/security-analyzers.md) | ||
| - [New TimeSpan.From*() overloads that take integers](../core/compatibility/core-libraries/9.0/timespan-from-overloads.md) | ||
| - [Some SVE APIs removed](../core/compatibility/jit/9.0/sve-apis.md) | ||
| - [User info in `mailto:` URIs is compared](../core/compatibility/networking/8.0/uri-comparison.md) | ||
| - [Windows private key lifetime simplified](../core/compatibility/cryptography/9.0/private-key-lifetime.md) | ||
| - [`dotnet sln add` no longer allows invalid file names](../core/compatibility/sdk/9.0/dotnet-sln.md) | ||
| - [ActivitySource.CreateActivity and ActivitySource.StartActivity behavior change](../core/compatibility/core-libraries/10.0/activity-sampling.md) | ||
| - [API obsoletions with non-default diagnostic IDs (.NET 10)](../core/compatibility/core-libraries/10.0/obsolete-apis.md) | ||
| - [Breaking changes in .NET 10](../core/compatibility/10.0.md) | ||
| - [C# 14 overload resolution with span parameters](../core/compatibility/core-libraries/10.0/csharp-overload-resolution.md) | ||
| - [Consistent shift behavior in generic math](../core/compatibility/core-libraries/10.0/generic-math.md) | ||
| - [Default RID used when targeting .NET Framework](../core/compatibility/sdk/9.0/default-rid.md) | ||
| - [Environment variable renamed to DOTNET_ICU_VERSION_OVERRIDE](../core/compatibility/globalization/10.0/version-override.md) | ||
| - [LDAP DirectoryControl parsing is now more stringent](../core/compatibility/core-libraries/10.0/ldap-directorycontrol-parsing.md) | ||
| - [MacCatalyst version normalization](../core/compatibility/core-libraries/10.0/maccatalyst-version-normalization.md) | ||
| - [Renamed parameter in HtmlElement.InsertAdjacentElement](../core/compatibility/windows-forms/10.0/insertadjacentelement-orientation.md) | ||
| - [TreeView checkbox image truncation](../core/compatibility/windows-forms/10.0/treeview-text-location.md) | ||
| - [X500DistinguishedName validation is stricter](../core/compatibility/cryptography/10.0/x500distinguishedname-validation.md) | ||
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| ## .NET fundamentals | ||
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| ### New articles | ||
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| - [Analyze projects with .NET Upgrade Assistant](../core/porting/upgrade-assistant-how-to-analyze.md) | ||
| - [CA2022: Avoid inexact read with Stream.Read](../fundamentals/code-analysis/quality-rules/ca2022.md) | ||
| - [CA2265: Do not compare `Span<T>` to `null` or `default`](../fundamentals/code-analysis/quality-rules/ca2265.md) | ||
| - [Configuration source generator](../core/extensions/configuration-generator.md) | ||
| - [Experimental features in .NET 9+](../fundamentals/syslib-diagnostics/experimental-overview.md) | ||
| - [Intrinsic APIs marked RequiresUnreferencedCode](../core/deploying/trimming/intrinsic-requiresunreferencedcode-apis.md) | ||
| - [Microsoft.Testing.Platform architecture](../core/testing/unit-testing-platform-architecture.md) | ||
| - [Microsoft.Testing.Platform capabilities](../core/testing/unit-testing-platform-architecture-capabilities.md) | ||
| - [Microsoft.Testing.Platform extensibility](../core/testing/unit-testing-platform-architecture-extensions.md) | ||
| - [Microsoft.Testing.Platform Services](../core/testing/unit-testing-platform-architecture-services.md) | ||
| - [Native interoperability ABI support](../standard/native-interop/abi-support.md) | ||
| - [Respect nullable annotations](../standard/serialization/system-text-json/nullable-annotations.md) | ||
| - [SYSLIB1230: Deriving from a `GeneratedComInterface`-attributed interface defined in another assembly is not supported](../fundamentals/syslib-diagnostics/syslib1230.md) | ||
| - [Upgrade projects with .NET Upgrade Assistant](../core/porting/upgrade-assistant-how-to-upgrade.md) | ||
| - [What is code analysis with .NET Upgrade Assistant?](../core/porting/upgrade-assistant-analyze-overview.md) | ||
| - [Extract schema](../standard/serialization/system-text-json/extract-schema.md) | ||
| - [.NET SDK container creation overview](../core/containers/overview.md) | ||
| - [CA2024: Do not use StreamReader.EndOfStream in async methods](../fundamentals/code-analysis/quality-rules/ca2024.md) | ||
| - [Containerize a .NET app with dotnet publish](../core/containers/sdk-publish.md) | ||
| - [Distributed tracing in System.Net libraries](../fundamentals/networking/telemetry/tracing.md) | ||
| - [Keyed DI support in `IHttpClientFactory`](../core/extensions/httpclient-factory-keyed-di.md) | ||
| - [MSTEST0038: Don't use 'Assert.AreSame' or 'Assert.AreNotSame' with value types](../core/testing/mstest-analyzers/mstest0038.md) | ||
| - [MSTEST0039: Use newer 'Assert.Throws' methods](../core/testing/mstest-analyzers/mstest0039.md) | ||
| - [MSTEST0040: Do not assert inside 'async void' contexts](../core/testing/mstest-analyzers/mstest0040.md) | ||
| - [NETSDK1032: RuntimeIdentifier and PlatformTarget must be compatible](../core/tools/sdk-errors/netsdk1032.md) | ||
| - [NETSDK1144: Optimizing assemblies for size failed](../core/tools/sdk-errors/netsdk1144.md) | ||
| - [Preview APIs](../fundamentals/runtime-libraries/preview-apis.md) | ||
| - [QUIC configuration options](../fundamentals/networking/quic/quic-options.md) | ||
| - [Serialization extension methods on HttpClient](../standard/serialization/system-text-json/httpclient-extensions.md) | ||
| - [SYSLIB0058: Certain SslStream properties are obsolete](../fundamentals/syslib-diagnostics/syslib0058.md) | ||
| - [SYSLIB0059: SystemEvents.EventsThreadShutdown callbacks aren't run before the process exits](../fundamentals/syslib-diagnostics/syslib0059.md) | ||
| - [SYSLIB0060: Rfc2898DeriveBytes constructors are obsolete](../fundamentals/syslib-diagnostics/syslib0060.md) | ||
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| ### Updated articles | ||
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| - [HttpWebRequest to HttpClient migration guide](../fundamentals/networking/http/httpclient-migrate-from-httpwebrequest.md) - Fix build suggestions | ||
| - [Install .NET on macOS](../core/install/macos.md) - Rewrite install on macOS article | ||
| - [Creating metrics](../core/diagnostics/metrics-instrumentation.md) - [diagnostics] Add InstrumentAdvice details to instrumentation doc | ||
| - [dotnet-coverage code coverage utility](../core/additional-tools/dotnet-coverage.md) - Update dotnet-coverage docs. Adding uninstrument command | ||
| - [Microsoft.Testing.Platform and VSTest comparison](../core/testing/unit-testing-platform-vs-vstest.md) - Add first level info for migration off of VSTest | ||
| - [Tutorial: Containerize a .NET app](../core/docker/build-container.md) - Address issues related to .NET containers | ||
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| ## C# language | ||
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| ### New articles | ||
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| - [Custom attributes that generate flags or options in the Intermediate Language (IL) output](../csharp/language-reference/attributes/pseudo-attributes.md) | ||
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| ## Visual Basic language | ||
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| ### Updated articles | ||
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| - [Generic types in Visual Basic (Visual Basic)](../visual-basic/programming-guide/language-features/data-types/generic-types.md) - Add VB new features | ||
| - [Troubleshooting Interoperability (Visual Basic)](../visual-basic/programming-guide/com-interop/troubleshooting-interoperability.md) - Fix up missing periods (.NET Framework docs) | ||
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| ## AI in .NET | ||
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| ### New articles | ||
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| - [Create a minimal AI assistant using .NET](../ai/quickstarts/quickstart-assistants.md) | ||
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| ## Azure SDK for .NET | ||
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| ### New articles | ||
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| - [Use Copilot Conversational Assessment with the Azure Migrate application and code assessment tool.](../azure/migration/appcat/visual-studio-copilot.md) | ||
| - [Authentication best practices with the Azure Identity library for .NET](../azure/sdk/authentication/best-practices.md) | ||
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| ## Microsoft Orleans | ||
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| ### New articles | ||
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| - [Grain directory implementation](../orleans/implementation/grain-directory.md) | ||
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| ### Updated articles | ||
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| - [Background Services and Startup Tasks](../orleans/host/configuration-guide/startup-tasks.md) - [Orleans] Update startup tasks guidance | ||
| - [Cluster management in Orleans](../orleans/implementation/cluster-management.md) - [Orleans] Update clustering implementation docs | ||
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| ## .NET Framework | ||
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| ### New articles | ||
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| - [February 2024 security and quality rollup](../framework/release-notes/2024/02-14-february-security-and-quality-rollup.md) | ||
| - [January 2024 cumulative update preview](../framework/release-notes/2024/01-23-january-preview-cumulative-update.md) | ||
| - [January 2024 security and quality rollup](../framework/release-notes/2024/01-09-january-security-and-quality-rollup.md) | ||
| - [March 2024 cumulative update preview](../framework/release-notes/2024/03-26-march-preview-cumulative-update.md) | ||
| - [October 2024 cumulative update preview](../framework/release-notes/2024/10-22-october-preview-cumulative-update.md) | ||
| - [October 2024 security and quality rollup](../framework/release-notes/2024/10-08-october-security-and-quality-rollup.md) | ||
| - [.NET Framework release notes](../framework/release-notes/release-notes.md) | ||
| - [January 2025 cumulative update](../framework/release-notes/2025/01-14-january-cumulative-update.md) | ||
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| ### Updated articles | ||
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| - [Security Concerns and Useful Tips for Tracing](../framework/wcf/diagnostics/tracing/security-concerns-and-useful-tips-for-tracing.md) - Fix up missing periods (.NET Framework docs) | ||
| - [Security Concerns for Message Logging](../framework/wcf/diagnostics/security-concerns-for-message-logging.md) - Fix up missing periods (.NET Framework docs) | ||
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| ## Community contributors | ||
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| The following people contributed to the .NET docs during this period. Thank you! Learn how to contribute by following the links under "Get involved" in the [what's new landing page](index.yml). | ||
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| - [shethaadit](https://github.com/shethaadit) - Adit Sheth  | ||
| - [BartoszKlonowski](https://github.com/BartoszKlonowski) - Bartosz Klonowski  | ||
| - [bigboybamo](https://github.com/bigboybamo) - Olabamiji Oyetubo  | ||
| - [juner](https://github.com/juner) - juner  | ||
| - [Marusyk](https://github.com/Marusyk) - Roman Marusyk  | ||
| - [timdeschryver](https://github.com/timdeschryver) - Tim Deschryver  | ||
| - [aarijimam](https://github.com/aarijimam) - Nawab Aarij Imam  | ||
| - [alexravenna](https://github.com/alexravenna) - Alex Ravenna  | ||
| - [am11](https://github.com/am11) - Adeel Mujahid  | ||
| - [ardalis](https://github.com/ardalis) - Steve Smith  | ||
| - [azarboon](https://github.com/azarboon) - Mahdi Azarboon  | ||
| - [batkaevruslan](https://github.com/batkaevruslan) - Ruslan Batkaev  | ||
| - [BigT-88](https://github.com/BigT-88) -  | ||
| - [colejohnson66](https://github.com/colejohnson66) - Cole Tobin  | ||
| - [fabrizziocht](https://github.com/fabrizziocht) - Fabrizzio Chavez  | ||
| - [gbamqzkdyg](https://github.com/gbamqzkdyg) - Luca Ma  | ||
| - [glen-84](https://github.com/glen-84) - Glen  | ||
| - [hakenr](https://github.com/hakenr) - Robert Haken  | ||
| - [HugoRoss](https://github.com/HugoRoss) - Christoph Hafner  | ||
| - [ichensky](https://github.com/ichensky) - Ivan Chensky  | ||
| - [janus-toendering](https://github.com/janus-toendering) - Janus Tøndering  | ||
| - [jochenkirstaetter](https://github.com/jochenkirstaetter) - Jochen Kirstätter  | ||
| - [jsedlak](https://github.com/jsedlak) - John Sedlak  | ||
| - [magiudev](https://github.com/magiudev) - Miguel Angel Echeverri Quiroz  | ||
| - [MarGraz](https://github.com/MarGraz) -  | ||
| - [Navis304](https://github.com/Navis304) - Robert  | ||
| - [omajid](https://github.com/omajid) - Omair Majid  | ||
| - [PawelAdamczuk](https://github.com/PawelAdamczuk) - Paweł Adamczuk  | ||
| - [pragnya17](https://github.com/pragnya17) - Pragnya  | ||
| - [Rageking8](https://github.com/Rageking8) -  | ||
| - [shethaadit](https://github.com/shethaadit) - Adit Sheth  | ||
| - [BartoszKlonowski](https://github.com/BartoszKlonowski) - Bartosz Klonowski  | ||
| - [azarboon](https://github.com/azarboon) - Mahdi Azarboon  | ||
| - [theluckyprogrammer](https://github.com/theluckyprogrammer) - Tomasz Osmanowski  | ||
| - [mpidash](https://github.com/mpidash) - Mario Pistrich  | ||
| - [Rageking8](https://github.com/Rageking8) -  | ||
| - [frdij](https://github.com/frdij) - Frans van Dijk  | ||
| - [gregoryagu](https://github.com/gregoryagu) - Greg Gum  | ||
| - [joproulx](https://github.com/joproulx) - Jonathan  | ||
| - [K4PS3](https://github.com/K4PS3) - khaled  | ||
| - [MangelMaxime](https://github.com/MangelMaxime) - Maxime Mangel  | ||
| - [mguinness](https://github.com/mguinness) -  | ||
| - [RandaZraik](https://github.com/RandaZraik) - Randa Zraik  | ||
| - [rkargMsft](https://github.com/rkargMsft) -  | ||
| - [samwherever](https://github.com/samwherever) - Sam Allen  | ||
| - [Swimburger](https://github.com/Swimburger) - Niels Swimberghe  | ||
| - [vcrobe](https://github.com/vcrobe) -  | ||
| - [WeihanLi](https://github.com/WeihanLi) - Weihan Li  | ||
| - [xakep139](https://github.com/xakep139) - Nikita Balabaev  | ||
| - [xtqqczze](https://github.com/xtqqczze) -  | ||
| - [Youssef1313](https://github.com/Youssef1313) - Youssef Victor  | ||
| - [SetTrend](https://github.com/SetTrend) - Axel D.  | ||
| - [ShaoHans](https://github.com/ShaoHans) - ShaoHans  | ||
| - [wasabii](https://github.com/wasabii) - Jerome Haltom  | ||
| - [willibrandon](https://github.com/willibrandon) - Brandon Williams  | ||
| - [zacharylayne](https://github.com/zacharylayne) -  | ||
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