prepare 8.0.0 release (#177)

## [8.0.0] - 2023-10-16
The latest version of this SDK supports the ability to manage migrations
or modernizations, using migration flags. You might use this
functionality if you are optimizing queries, upgrading to new tech
stacks, migrating from one database to another, or other similar
technology changes. Migration flags are part of LaunchDarkly's Early
Access Program. This feature is available to all LaunchDarkly customers
but may undergo additional changes before it is finalized.

For detailed information about this version, refer to the list below.
For information on how to upgrade from the previous version, read the
[migration
guide](https://docs.launchdarkly.com/sdk/server-side/dotnet/migration-7-to-8).

### Added:
- A new `Migration` type which provides an out-of-the-box configurable
migration framework.
- For more advanced use cases, added new `MigrationVariation` and
`TrackMigration` methods on LdClient.
- `ApplicationInfo`, for configuration of application metadata that may
be used in LaunchDarkly analytics or other product features. This does
not affect feature flag evaluations.
- Added `IsOffline` method to `ILdClient`. This was previously only
available on the concrete `LdClient` implementation.

### Removed:
- Remove support for `User` in `LdClient` methods. The
`Context.FromUser` method can be used to convert a `User` to a
`Context`. In a future version it may be removed.

### Changed:
- Upgraded `LaunchDarkly.EventSource` to `5.1.0`. This will change the
minimum `LaunchDarkly.Logging` version to `2.0.0` for all dependencies.

---------

Co-authored-by: Eli Bishop <eli@launchdarkly.com>
Co-authored-by: Ben Woskow <48036130+bwoskow-ld@users.noreply.github.com>
Co-authored-by: LaunchDarklyCI <LaunchDarklyCI@users.noreply.github.com>
Co-authored-by: LaunchDarklyCI <dev@launchdarkly.com>
Co-authored-by: Ember Stevens <ember.stevens@launchdarkly.com>
Co-authored-by: ember-stevens <79482775+ember-stevens@users.noreply.github.com>
Co-authored-by: LaunchDarklyReleaseBot <launchdarklyreleasebot@launchdarkly.com>
Co-authored-by: Ryan Lamb <4955475+kinyoklion@users.noreply.github.com>
Co-authored-by: Louis Chan <lchan@launchdarkly.com>
Co-authored-by: ld-repository-standards[bot] <113625520+ld-repository-standards[bot]@users.noreply.github.com>
Co-authored-by: Kane Parkinson <93555788+kparkinson-ld@users.noreply.github.com>

Author: 10 people

.ldrelease/config.yml

@@ -20,7 +20,8 @@ jobs:
 
 branches:
   - name: main
-    description: 7.x
+    description: 8.x
+  - name: 7.x
   - name: 6.x
   - name: 5.x
 

CODEOWNERS

@@ -0,0 +1,2 @@
+# Repository Maintainers
+* @launchdarkly/team-sdk-net

README.md

@@ -10,7 +10,7 @@ For using LaunchDarkly in *client-side* .NET applications, including mobile (Xam
 
 ## LaunchDarkly overview
 
-[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves over 100 billion feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/home/getting-started) using LaunchDarkly today!
+[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves trillions of feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/home/getting-started) using LaunchDarkly today!
 
 [![Twitter Follow](https://img.shields.io/twitter/follow/launchdarkly.svg?style=social&label=Follow&maxAge=2592000)](https://twitter.com/intent/follow?screen_name=launchdarkly)
 
@@ -51,7 +51,7 @@ Public Key Token: f86add69004e6885
 
 ## Learn more
 
-Check out our [documentation](https://docs.launchdarkly.com) for in-depth instructions on configuring and using LaunchDarkly. You can also head straight to the [complete reference guide for this SDK](https://docs.launchdarkly.com/docs/dotnet-sdk-reference).
+Read our [documentation](https://docs.launchdarkly.com) for in-depth instructions on configuring and using LaunchDarkly. You can also head straight to the [complete reference guide for this SDK](https://docs.launchdarkly.com/docs/dotnet-sdk-reference).
 
 The authoritative description of all types, properties, and methods is in the [generated API documentation](https://launchdarkly.github.io/dotnet-server-sdk/).
 

contract-tests/CallbackService.cs

@@ -19,7 +19,7 @@ public class CallbackService
         private static readonly HttpClient _httpClient = new HttpClient();
 
         private readonly Uri _uri;
-        
+
         public CallbackService(Uri uri)
         {
             _uri = uri;
@@ -50,6 +50,23 @@ public async Task<T> PostAsync<T>(string path, object parameters)
             return ret;
         }
 
+        public async Task<string> PostStringAsync(string path, string parameter)
+        {
+            var resp = await _httpClient.PostAsync(_uri + path,
+                new StringContent(
+                    parameter,
+                    Encoding.UTF8,
+                    "test/plain"));
+            var body = resp.Content == null ? "" : await resp.Content.ReadAsStringAsync();
+            if (!resp.IsSuccessStatusCode)
+            {
+                throw new Exception(string.Format("Callback to {0} returned HTTP error {1} {2}",
+                    _uri + path, (int)resp.StatusCode, body));
+            }
+
+            return body;
+        }
+
         private async Task<HttpResponseMessage> PostInternalAsync(string path, object parameters)
         {
             var resp = await _httpClient.PostAsync(_uri + path,

contract-tests/Representations.cs

@@ -29,6 +29,13 @@ public class SdkConfigParams
         public SdkConfigStreamParams Streaming { get; set; }
         public SdkConfigEventParams Events { get; set; }
         public SdkConfigBigSegmentsParams BigSegments { get; set; }
+        public SdkTagParams Tags { get; set; }
+    }
+
+    public class SdkTagParams
+    {
+        public string ApplicationId { get; set; }
+        public string ApplicationVersion { get; set; }
     }
 
     public class SdkConfigStreamParams
@@ -66,6 +73,8 @@ public class CommandParams
         public ContextBuildParams ContextBuild { get; set; }
         public ContextConvertParams ContextConvert { get; set; }
         public SecureModeHashParams SecureModeHash { get; set; }
+        public MigrationVariationParams MigrationVariation { get; set; }
+        public MigrationOperationParams MigrationOperation { get; set; }
     }
 
     public class EvaluateFlagParams
@@ -159,4 +168,33 @@ public class SecureModeHashResponse
     {
         public string Result { get; set; }
     }
+
+    public class MigrationVariationParams {
+        public string Key { get; set; }
+        public Context Context { get; set; }
+        public string DefaultStage { get; set; }
+    }
+
+    public class MigrationVariationResponse {
+        public string Result { get; set; }
+    }
+
+    public class MigrationOperationParams {
+        public string Operation { get; set; }
+        public Context Context { get; set; }
+        public string Key { get; set; }
+        public string DefaultStage { get; set; }
+        public string Payload { get; set; }
+        public string ReadExecutionOrder { get; set; }
+        public bool TrackConsistency { get; set; }
+        public bool TrackLatency { get; set; }
+        public bool TrackErrors { get; set; }
+        public Uri OldEndpoint { get; set; }
+        public Uri NewEndpoint { get; set; }
+    }
+
+    public class MigrationOperationResponse {
+        public string Result { get; set; }
+        public string Error { get; set; }
+    }
 }