- release notes

- use Enum.TryParse for the X509 flags

Author: mgravell

docs/ReleaseNotes.md

@@ -9,6 +9,8 @@ Current package versions:
 ## Unreleased
 No pending unreleased changes
 
+- Add `ConfigurationOptions.SetUserPemCertificate(...)` and `ConfigurationOptions.SetUserPfxCertificate(...)` methods to simplify using client certificates ([#2873 by mgravell](https://github.com/StackExchange/StackExchange.Redis/pull/2873))
+
 ## 2.8.31
 
 - Fix: Respect `IReconnectRetryPolicy` timing in the case that a node that was present disconnects indefinitely ([#2853](https://github.com/StackExchange/StackExchange.Redis/pull/2853) & [#2856](https://github.com/StackExchange/StackExchange.Redis/pull/2856) by NickCraver)

src/StackExchange.Redis/PhysicalConnection.cs

@@ -1510,10 +1510,9 @@ public ConnectionStatus GetStatus()
                     var password = Environment.GetEnvironmentVariable("SERedis_ClientCertPassword");
                     var pfxStorageFlags = Environment.GetEnvironmentVariable("SERedis_ClientCertStorageFlags");
                     X509KeyStorageFlags storageFlags = X509KeyStorageFlags.DefaultKeySet;
-                    if (!string.IsNullOrEmpty(pfxStorageFlags))
+                    if (!string.IsNullOrEmpty(pfxStorageFlags) && Enum.TryParse<X509KeyStorageFlags>(pfxStorageFlags, true, out var typedFlags))
                     {
-                        var tmp = Enum.Parse(typeof(X509KeyStorageFlags), pfxStorageFlags) as X509KeyStorageFlags?;
-                        if (tmp is not null) storageFlags = tmp.GetValueOrDefault();
+                        storageFlags = typedFlags;
                     }
 
                     return ConfigurationOptions.CreatePfxUserCertificateCallback(certificatePath, password, storageFlags);