.Net: Remove experimental flag from VectorStore implementations. (#9624)

### Motivation and Context

As part of graduating vector stores we want to remove the experimental
flag from the implementations and only keep them on memory store
implementations.

#8539

### Description

- Remove experimental flag from packages with vector store
implementations.
- Add experimental flag to any memory store files in the same package.
- Clean up warning suppressions in vector store projects.

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

dotnet/src/Connectors/Connectors.Memory.AzureAISearch/AssemblyInfo.cs

@@ -1,6 +1 @@
 // Copyright (c) Microsoft. All rights reserved.
-
-using System.Diagnostics.CodeAnalysis;
-
-// This assembly is currently experimental.
-[assembly: Experimental("SKEXP0020")]

dotnet/src/Connectors/Connectors.Memory.AzureAISearch/AzureAISearchMemoryRecord.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Text;
 using System.Text.Json.Serialization;
 using Microsoft.SemanticKernel.Memory;
@@ -11,6 +12,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureAISearch;
 /// Azure AI Search record and index definition.
 /// Note: once defined, index cannot be modified.
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class AzureAISearchMemoryRecord
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.AzureAISearch/AzureAISearchMemoryStore.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
@@ -23,6 +24,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureAISearch;
 /// <summary>
 /// <see cref="AzureAISearchMemoryStore"/> is a memory store implementation using Azure AI Search.
 /// </summary>
+[Experimental("SKEXP0020")]
 public partial class AzureAISearchMemoryStore : IMemoryStore
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.AzureAISearch/Connectors.Memory.AzureAISearch.csproj

@@ -5,8 +5,6 @@
     <RootNamespace>Microsoft.SemanticKernel.Connectors.AzureAISearch</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
     <VersionSuffix>preview</VersionSuffix>
-    <!--NU5104: A stable release of a package should not have a prerelease dependency.-->
-    <NoWarn>$(NoWarn);NU5104</NoWarn>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AssemblyInfo.cs

@@ -1,6 +1 @@
 // Copyright (c) Microsoft. All rights reserved.
-
-using System.Diagnostics.CodeAnalysis;
-
-// This assembly is currently experimental.
-[assembly: Experimental("SKEXP0020")]

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AzureCosmosDBMongoDBConfig.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using Microsoft.SemanticKernel.Http;
 
 namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
@@ -11,6 +12,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
 /// <remarks>
 /// Initialize the <see cref="AzureCosmosDBMongoDBConfig"/> with default values.
 /// </remarks>
+[Experimental("SKEXP0020")]
 public class AzureCosmosDBMongoDBConfig(int dimensions)
 {
     private const string DefaultIndexName = "default_index";

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AzureCosmosDBMongoDBMemoryRecord.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using Microsoft.SemanticKernel.Memory;
 using MongoDB.Bson;
@@ -12,6 +13,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
 /// <summary>
 /// A MongoDB memory record.
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class AzureCosmosDBMongoDBMemoryRecord
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AzureCosmosDBMongoDBMemoryRecordMetadata.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using Microsoft.SemanticKernel.Memory;
 using MongoDB.Bson.Serialization.Attributes;
 
@@ -9,6 +10,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
 /// A MongoDB memory record metadata.
 /// </summary>
 #pragma warning disable CA1815 // Override equals and operator equals on value types
+[Experimental("SKEXP0020")]
 internal struct AzureCosmosDBMongoDBMemoryRecordMetadata
 #pragma warning restore CA1815 // Override equals and operator equals on value types
 {

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AzureCosmosDBMongoDBMemoryStore.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using System.Linq;
 using System.Runtime.CompilerServices;
@@ -17,6 +18,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
 /// An implementation of <see cref="IMemoryStore"/> backed by a Azure CosmosDB Mongo vCore database.
 /// Get more details about Azure Cosmos Mongo vCore vector search  https://learn.microsoft.com/en-us/azure/cosmos-db/mongodb/vcore/vector-search
 /// </summary>
+[Experimental("SKEXP0020")]
 public class AzureCosmosDBMongoDBMemoryStore : IMemoryStore, IDisposable
 {
     private readonly MongoClient _mongoClient;

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AzureCosmosDBSimilarityType.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using MongoDB.Bson;
 using MongoDB.Bson.Serialization.Attributes;
@@ -10,6 +11,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
 /// <summary>
 /// Similarity metric to use with the index. Possible options are COS (cosine distance), L2 (Euclidean distance), and IP (inner product).
 /// </summary>
+[Experimental("SKEXP0020")]
 public enum AzureCosmosDBSimilarityType
 {
     /// <summary>
@@ -31,6 +33,7 @@ public enum AzureCosmosDBSimilarityType
     Euclidean
 }
 
+[Experimental("SKEXP0020")]
 internal static class AzureCosmosDBSimilarityTypeExtensions
 {
     public static string GetCustomName(this AzureCosmosDBSimilarityType type)

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/AzureCosmosDBVectorSearchType.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using MongoDB.Bson.Serialization.Attributes;
 
@@ -9,6 +10,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB;
 /// <summary>
 /// Type of vector index to create. The options are vector-ivf and vector-hnsw.
 /// </summary>
+[Experimental("SKEXP0020")]
 public enum AzureCosmosDBVectorSearchType
 {
     /// <summary>
@@ -24,6 +26,7 @@ public enum AzureCosmosDBVectorSearchType
     VectorHNSW
 }
 
+[Experimental("SKEXP0020")]
 internal static class AzureCosmosDBVectorSearchTypeExtensions
 {
     public static string GetCustomName(this AzureCosmosDBVectorSearchType type)

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/Connectors.Memory.AzureCosmosDBMongoDB.csproj

@@ -5,7 +5,6 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.AzureCosmosDBMongoDB</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <NoWarn>$(NoWarn);NU5104;SKEXP0001,SKEXP0010</NoWarn>
     <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBNoSQL/AssemblyInfo.cs

@@ -1,6 +1 @@
 // Copyright (c) Microsoft. All rights reserved.
-
-using System.Diagnostics.CodeAnalysis;
-
-// This assembly is currently experimental.
-[assembly: Experimental("SKEXP0020")]

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBNoSQL/AzureCosmosDBNoSQLMemoryStore.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Text;
@@ -21,6 +22,7 @@ namespace Microsoft.SemanticKernel.Connectors.AzureCosmosDBNoSQL;
 /// An implementation of <see cref="IMemoryStore"/> backed by a Azure Cosmos DB database.
 /// Get more details about Azure Cosmos DB vector search  https://learn.microsoft.com/en-us/azure/cosmos-db/
 /// </summary>
+[Experimental("SKEXP0020")]
 public class AzureCosmosDBNoSQLMemoryStore : IMemoryStore, IDisposable
 {
     private const string EmbeddingPath = "/embedding";
@@ -444,6 +446,7 @@ protected virtual void Dispose(bool disposing)
 /// <param name="timestamp"></param>
 [DebuggerDisplay("{GetDebuggerDisplay()}")]
 #pragma warning disable CA1812 // 'MemoryRecordWithSimilarityScore' is an internal class that is apparently never instantiated. If so, remove the code from the assembly. If this class is intended to contain only static members, make it 'static' (Module in Visual Basic). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1812)
+[Experimental("SKEXP0020")]
 internal sealed class MemoryRecordWithSimilarityScore(
 #pragma warning restore CA1812
     MemoryRecordMetadata metadata,
@@ -465,6 +468,7 @@ private string GetDebuggerDisplay()
 /// <summary>
 /// Creates a new record that also serializes an "id" property.
 /// </summary>
+[Experimental("SKEXP0020")]
 [DebuggerDisplay("{GetDebuggerDisplay()}")]
 internal sealed class MemoryRecordWithId : MemoryRecord
 {

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBNoSQL/Connectors.Memory.AzureCosmosDBNoSQL.csproj

@@ -5,7 +5,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.AzureCosmosDBNoSQL</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <NoWarn>$(NoWarn);NU5104;SKEXP0001,SKEXP0010</NoWarn>
+    <NoWarn>$(NoWarn);NU5104</NoWarn>
     <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 

dotnet/src/Connectors/Connectors.Memory.InMemory/AssemblyInfo.cs

@@ -1,6 +1 @@
 // Copyright (c) Microsoft. All rights reserved.
-
-using System.Diagnostics.CodeAnalysis;
-
-// This assembly is currently experimental.
-[assembly: Experimental("SKEXP0020")]

dotnet/src/Connectors/Connectors.Memory.MongoDB/AssemblyInfo.cs

@@ -1,6 +1 @@
 // Copyright (c) Microsoft. All rights reserved.
-
-using System.Diagnostics.CodeAnalysis;
-
-// This assembly is currently experimental.
-[assembly: Experimental("SKEXP0020")]

dotnet/src/Connectors/Connectors.Memory.MongoDB/MongoDBMemoryEntry.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System;
+using System.Diagnostics.CodeAnalysis;
 using Microsoft.SemanticKernel.Memory;
 using MongoDB.Bson;
 using MongoDB.Bson.Serialization.Attributes;
@@ -10,6 +11,7 @@ namespace Microsoft.SemanticKernel.Connectors.MongoDB;
 /// <summary>
 /// A MongoDB memory entry.
 /// </summary>
+[Experimental("SKEXP0020")]
 public sealed class MongoDBMemoryEntry
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.MongoDB/MongoDBMemoryRecordMetadata.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using Microsoft.SemanticKernel.Memory;
 using MongoDB.Bson.Serialization.Attributes;
 
@@ -9,6 +10,7 @@ namespace Microsoft.SemanticKernel.Connectors.MongoDB;
 /// A MongoDB record metadata.
 /// </summary>
 #pragma warning disable CA1815 // Override equals and operator equals on value types
+[Experimental("SKEXP0020")]
 public struct MongoDBMemoryRecordMetadata
 #pragma warning restore CA1815 // Override equals and operator equals on value types
 {

dotnet/src/Connectors/Connectors.Memory.MongoDB/MongoDBMemoryStore.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Runtime.CompilerServices;
 using System.Threading;
 using System.Threading.Tasks;
@@ -14,6 +15,7 @@ namespace Microsoft.SemanticKernel.Connectors.MongoDB;
 /// <summary>
 /// An implementation of <see cref="IMemoryStore"/> backed by a MongoDB database.
 /// </summary>
+[Experimental("SKEXP0020")]
 public class MongoDBMemoryStore : IMemoryStore, IDisposable
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.Pinecone/AssemblyInfo.cs

@@ -1,6 +1 @@
 // Copyright (c) Microsoft. All rights reserved.
-
-using System.Diagnostics.CodeAnalysis;
-
-// This assembly is currently experimental.
-[assembly: Experimental("SKEXP0020")]

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/ConfigureIndexRequest.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using System.Net.Http;
 using System.Text.Json.Serialization;
 
@@ -9,6 +10,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// This operation specifies the pod type and number of replicas for an index.
 /// See https://docs.pinecone.io/reference/configure_index
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class ConfigureIndexRequest
 {
     public string IndexName { get; set; }

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/DeleteIndexRequest.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using System.Net.Http;
 
 namespace Microsoft.SemanticKernel.Connectors.Pinecone;
@@ -8,6 +9,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// Deletes an index and all its data.
 /// See https://docs.pinecone.io/reference/delete_index
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class DeleteIndexRequest
 {
     public static DeleteIndexRequest Create(string indexName)

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/DeleteRequest.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Net.Http;
 using System.Text;
@@ -12,6 +13,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// DeleteRequest
 /// See https://docs.pinecone.io/reference/delete_post
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class DeleteRequest
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/DescribeIndexRequest.cs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+using System.Diagnostics.CodeAnalysis;
 using System.Net.Http;
 
 namespace Microsoft.SemanticKernel.Connectors.Pinecone;
@@ -8,6 +9,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// Get information about an index.
 /// See https://docs.pinecone.io/reference/describe_index
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class DescribeIndexRequest
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/DescribeIndexStatsRequest.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Net.Http;
 using System.Text.Json.Serialization;
 
@@ -10,6 +11,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// DescribeIndexStatsRequest
 /// See https://docs.pinecone.io/reference/describe_index_stats_post
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class DescribeIndexStatsRequest
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/FetchRequest.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Net.Http;
 using System.Text.Json.Serialization;
@@ -11,6 +12,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// FetchRequest
 /// See https://docs.pinecone.io/reference/fetch
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class FetchRequest
 {
     /// <summary>

dotnet/src/Connectors/Connectors.Memory.Pinecone/Http/ApiSchema/FetchResponse.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Text.Json.Serialization;
 
@@ -12,6 +13,7 @@ namespace Microsoft.SemanticKernel.Connectors.Pinecone;
 /// FetchResponse
 /// See https://docs.pinecone.io/reference/fetch
 /// </summary>
+[Experimental("SKEXP0020")]
 internal sealed class FetchResponse
 {
     /// <summary>