System.Xml work planned for .NET 7

[jeffhandley]

This issue captures the planned work for .NET 7. This list is expected to change throughout the release cycle according to ongoing planning and discussions, with possible additions and subtractions to the scope.

Summary

We are not planning any notable investments into the System.Xml area in .NET 7. We will address issues related to nullable annotations, resolve test issues and high-impact bugs, and we will consider community contributions that provide proven performance optimizations.

Planned for .NET 7

• XmlTextReaderImpl.Read() significant performance regression in net6.0  #60226
• XmlReader.ReadContentAs{Async} different behavior #52646
• System.Xml.XmlSerializer.Tests Crashes on tvOS #36903
• System.Xml.Linq.xNodeBuilder.Tests Fails on Android #50944
• System.Xml.RW.XmlReader.Tests Fails on Android #50945
• System.Xml.XmlSchema.XmlSchemaValidatorApi.Tests Fails on Android #50946
• System.Xml.XmlSchemaSet.Tests Fails on Android #50947
• System.Xml.Xsl.XslCompiledTransformApi.Tests Fails on Android #50948
• NullReferenceException in XML found during nullability annotations #41061
• System.Xml.XmlNode.SelectNodes return should not be nullable #49131
• Nullable annotations: XmlNode.AppendChild #48456

Backlog (roughly in priority order)

• XmlSchema parsing of <xs:import> nodes does not work #30054
• XmlNodeReader MoveToAttribute bug, leaves XmlReader in inconsistent state #34443
• Xslt document function fails when path Contains Private Area Unicode Characters #59353
• Remove unused code in Xslt that parses Scripts in xsls as the Transform operation is not supported in Core. #50308
• XmlReader ReadElementContentAsString Hangs if End of Document Tag Reached in Stream  #1029
• XslCompiledTransform on .net Core Linux crashes - does not happen on Windows, or when enableDebug=true #52436

[ghost]

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Issue Details

---

This issue captures the planned work for .NET 7. This list is expected to change throughout the release cycle according to ongoing planning and discussions, with possible additions and subtractions to the scope.

Summary

We are not planning any notable investments into the System.Xml area in .NET 7. We will address issues related to nullable annotations, resolve test issues and high-impact bugs, and we will consider community contributions that provide proven performance optimizations.

Planned for .NET 7

• XmlTextReaderImpl.Read() significant performance regression in net6.0  #60226
• XmlReader.ReadContentAs{Async} different behavior #52646
• System.Xml.XmlSerializer.Tests Crashes on tvOS #36903
• System.Xml.Linq.xNodeBuilder.Tests Fails on Android #50944
• System.Xml.RW.XmlReader.Tests Fails on Android #50945
• System.Xml.XmlSchema.XmlSchemaValidatorApi.Tests Fails on Android #50946
• System.Xml.XmlSchemaSet.Tests Fails on Android #50947
• System.Xml.Xsl.XslCompiledTransformApi.Tests Fails on Android #50948
• NullReferenceException in XML found during nullability annotations #41061
• System.Xml.XmlNode.SelectNodes return should not be nullable #49131
• Nullable annotations: XmlNode.AppendChild #48456

Under Consideration

• XmlSchema parsing of <xs:import> nodes does not work #30054
• XmlNodeReader MoveToAttribute bug, leaves XmlReader in inconsistent state #34443
• Xslt document function fails when path Contains Private Area Unicode Characters #59353
• Remove unused code in Xslt that parses Scripts in xsls as the Transform operation is not supported in Core. #50308
• XmlReader ReadElementContentAsString Hangs if End of Document Tag Reached in Stream  #1029
• XslCompiledTransform on .net Core Linux crashes - does not happen on Windows, or when enableDebug=true #52436

Author:	jeffhandley
Assignees:	krwq, jeffhandley, eiriktsarpalis, layomia
Labels:	Epic, area-System.Xml, Priority:3, Team:Libraries
Milestone:	7.0.0

[krwq]

Closing issue since all of the planned items are fixed