Microsoft.Extensions work planned for .NET 8

[maryamariyan]

This issue captures the planned work for .NET 8. This list is expected to change throughout the release cycle according to ongoing planning and discussions, with possible additions and subtractions to the scope.

Related overlapping Epic issue

• Libraries work to support Cloud Native effort for .NET 8 #78518

Summary

For .NET 8 we are prioritizing the work to improve code reliability and minimize the number of high-impact bugs in the codebase. There's also some bottom up planned community requested feature requests available in the list.

Planned for .NET 8

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Hosting

• [API Proposal]: When stopping an IHost instance, IHostedService instances StopAsync method is called sequentially instead of asynchronously #68036

Dependency Injection

• Consider updating ActivatorUtilities.CreateFactory to use ILEmit when possible #66153
• Services resolving incorrectly in Development environment but not Production #65145
• ActivatorUtilities.CreateInstance depends on the order of constructors' definitions #46132
• [Feature Request] Generic ObjectFactory and ActivatorUtilities.CreateFactory #34471

Configuration

• Cannot create instance of type 'X' because parameter 'XParameter' has no matching config. Each parameter in the constructor that does not have a default value must have a corresponding config entry. #77660
• [API Proposal]: Allow keys with colons in config #67616
• Developers can safely trim apps which need Configuration Binder #44493
• Built-in configuration providers can do more robust key handling #44517
• ConfigurationBuilder - Configuration.Json: Binding a Dictionary<string,string> error when Key contains an string url like http://www.google.es #42643
• [Feature Request] Add a replacement for dot in EnvironmentVariablesConfigurationProvider #35989
• EnvironmentVariablesConfigurationProvider should support all types of connectionstrings  #36123
• Configuration binding swallows the conversion exception #73915
• Configuration binding with nested types and readonly properties not working #77677
• ConfigurationBinder fails to bind class that implements IDictionary #77246
• API documentation debt - Microsoft.Extensions.Configuration #43869

Logging

• EventSourceLogger does not propagate SpanId and TraceId #76718
• Add support for logging with more than 6 arguments at runtime #55525

Logging Source Generator (also listed in #52549)

• [LSG] Objects logging using @ operator in logging source generator attribute #78013
• [LSG] warning CS8785: Generator 'LoggerMessageGenerator' failed to generate source. #77525
• [LSG] LoggerMessage source generator generates error when using template destructuring #69490
• [LSG] Logging Source Generator fails to detect event name uniqueness within a class scope #64667
• [LSG] Logging Source Generator fails to compile when out parameter modifier is present #64665
• [LSG] LoggerMessage - Add diagnostic - Can't have malformed format strings #52226
• [LSG] LoggerMessage - Add diagnostic when unexpected order provided in message template #52225

Options

• [API Proposal]: Make it easier to create quality ValidateOptionsResult instances #77404
• [API Proposal]: Introduce a code generator to handle option validation #85475
• Explore options immutability #43359

Caching

• [API Proposal]: Operations on partial IDistributedCache key values #76340
• Enhancement to IDistributedCache - Allow for bulk remove and key enumeration #44512
• API documentation debt - Microsoft.Extensions.Caching #43868
• How to get the list of keys using IDistributedCache extension. #36402
• Bulk remove on IDistributedCache #36568

Primitives

• API to provide the current system time #36617

Future considered Issues

• [LSG] LoggerMessage - Add diagnostic - Can't have the same template with different casing #52228
• Strong type support in Microsoft.Extensions.Logging #61947

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Issue Details

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This issue captures the planned work for .NET 8. 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

For .NET 8 we are prioritizing the work to improve code reliability and minimize the number of high-impact bugs in the codebase. There's also some bottom up planned community requested feature requests available in the list.

Planned for .NET 8

• Support immutable types in Microsoft.Extensions #47191
• Services resolving incorrectly in Development environment but not Production #65145
• ActivatorUtilities.CreateInstance depends on the order of constructors' definitions #46132
• [LSG] LoggerMessage source generator generates error when using template destructuring #69490
• Built-in configuration providers can do more robust key handling #44517
• EnvironmentVariablesConfigurationProvider should support all types of connectionstrings  #36123
• Enhancement to IDistributedCache - Allow for bulk remove and key enumeration #44512
• Strong type support in Microsoft.Extensions.Logging #61947
• Add support for logging with more than 6 arguments at runtime #55525
• Explore options immutability #43359

Author:	maryamariyan
Assignees:	-
Labels:	Epic, area-Extensions-Primitives
Milestone:	8.0.0

[tarekgh]

Closing this as we tracked items in the linked issue.