Merge branch '1.x'

# Conflicts:
#	.ldrelease/config.yml
#	CHANGELOG.md
#	src/LaunchDarkly.ServerSdk.Redis.StrongName/LaunchDarkly.ServerSdk.Redis.StrongName.csproj
#	src/LaunchDarkly.ServerSdk.Redis/LaunchDarkly.ServerSdk.Redis.csproj
#	src/LaunchDarkly.ServerSdk.Redis/RedisFeatureStore.cs

Author: eli-darkly

.ldrelease/config.yml

@@ -20,5 +20,5 @@ template:
     - test  # tests require Redis - run them only in CI
 
 documentation:
-  title: LaunchDarkly SDK Redis Integration
+  title: LaunchDarkly .NET SDK Redis Integration
   githubPages: true

CHANGELOG.md

@@ -19,6 +19,10 @@ This version of `LaunchDarkly.ServerSdk.Redis` requires version 5.14 or higher o
 ### Removed:
 - The `ResponseTimeout` configuration property, which is no longer supported by `StackExchange.Redis`.
 
+## [1.2.1] - 2021-06-01
+### Fixed:
+- The library was not fully compliant with the standard usage of Redis keys by other LaunchDarkly SDKs and by the Relay Proxy, as follows: although feature flag data was stored with the correct keys, the wrong key was used for the special value that indicates that the database has been initialized. As a result, if the Relay Proxy had stored data in Redis, the .NET SDK would not detect it, and if the .NET SDK had stored data in Redis, other SDKs might not detect it.
+
 ## [1.2.0] - 2021-01-26
 ### Added:
 - New classes `LaunchDarkly.Client.Integrations.Redis` and `LaunchDarkly.Client.Integrations.RedisDataStoreBuilder`, which serve the same purpose as the previous classes but are designed to work with the newer persistent data store API introduced in .NET SDK 5.14.0.

src/LaunchDarkly.ServerSdk.Redis/RedisFeatureStore.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using Common.Logging;
 using LaunchDarkly.Client.Utils;
@@ -13,6 +13,7 @@ internal sealed class RedisFeatureStoreCore : IFeatureStoreCore
 
         private readonly ConnectionMultiplexer _redis;
         private readonly string _prefix;
+        private readonly string _initedKey;
 
         // This is used for unit testing only
         private Action _updateHook;
@@ -30,12 +31,13 @@ Action updateHook
 
             _prefix = prefix;
             _updateHook = updateHook;
+            _initedKey = prefix + ":$inited";
         }
 
         public bool InitializedInternal()
         {
             IDatabase db = _redis.GetDatabase();
-            return db.KeyExists(_prefix);
+            return db.KeyExists(_initedKey);
         }
 
         public void InitInternal(IDictionary<IVersionedDataKind, IDictionary<string, IVersionedData>> items)
@@ -54,7 +56,7 @@ public void InitInternal(IDictionary<IVersionedDataKind, IDictionary<string, IVe
                     // transaction. We don't need to await them.
                 }
             }
-            txn.StringSetAsync(_prefix, "");
+            txn.StringSetAsync(_initedKey, "");
             txn.Execute();
         }