Bump minimum Mono version to 5.18

Fixes #4722

src/NzbDrone.Core.Test/HealthCheck/Checks/MonoVersionCheckFixture.cs

@@ -30,6 +30,7 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
 
         [TestCase("5.18")]
         [TestCase("5.20")]
+        [TestCase("6.4")]
         public void should_return_ok(string version)
         {
             GivenOutput(version);
@@ -37,7 +38,6 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
             Subject.Check().ShouldBeOk();
         }
 
-        [TestCase("5.16")]
         public void should_return_notice(string version)
         {
             GivenOutput(version);
@@ -45,8 +45,6 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
             Subject.Check().ShouldBeNotice();
         }
 
-        [TestCase("5.4")]
-        [TestCase("5.8")]
         public void should_return_warning(string version)
         {
             GivenOutput(version);
@@ -67,6 +65,12 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
         [TestCase("4.2")]
         [TestCase("4.4.0")]
         [TestCase("4.4.1")]
+        [TestCase("5.4")]
+        [TestCase("5.8")]
+        [TestCase("5.10")]
+        [TestCase("5.12")]
+        [TestCase("5.14")]
+        [TestCase("5.16")]
         public void should_return_error(string version)
         {
             GivenOutput(version);

src/NzbDrone.Core/HealthCheck/Checks/MonoVersionCheck.cs

@@ -46,30 +46,28 @@ namespace NzbDrone.Core.HealthCheck.Checks
             }
 
             // Stable Mono versions
-            var stableVersion = new Version("5.16");
+            var stableVersion = new Version("5.18");
             if (monoVersion >= stableVersion)
             {
                 _logger.Debug("Mono version is {0} or better: {1}", stableVersion, monoVersion);
                 return new HealthCheck(GetType(),
                     HealthCheckResult.Notice,
-                    $"Currently installed Mono version {monoVersion} is supported but upgrading to {bestVersion} is recommended.",
+                    string.Format(_localizationService.GetLocalizedString("MonoVersionCheckUpgradeRecommendedMessage"), monoVersion, bestVersion),
                     "#currently-installed-mono-version-is-supported-but-upgrading-is-recommended");
             }
 
-            // Old but supported Mono versions, there are known bugs
-            var supportedVersion = new Version("5.4");
-            if (monoVersion >= supportedVersion)
+            var oldVersion = new Version("5.4");
+            if (monoVersion >= oldVersion)
             {
-                _logger.Debug("Mono version is {0} or better: {1}", supportedVersion, monoVersion);
                 return new HealthCheck(GetType(),
-                    HealthCheckResult.Warning,
-                    $"Currently installed Mono version {monoVersion} is supported but has some known issues. Please upgrade Mono to version {bestVersion}.",
-                    "#currently-installed-mono-version-is-supported-but-upgrading-is-recommended");
+                    HealthCheckResult.Error,
+                    string.Format(_localizationService.GetLocalizedString("MonoVersionCheckUpgradeRecommendedMessage"), monoVersion, bestVersion),
+                    "#currently-installed-mono-version-is-old-and-unsupported");
             }
 
             return new HealthCheck(GetType(),
                 HealthCheckResult.Error,
-                $"Currently installed Mono version {monoVersion} is old and unsupported. Please upgrade Mono to version {bestVersion}.",
+                string.Format(_localizationService.GetLocalizedString("MonoVersionCheckUpgradeRecommendedMessage"), monoVersion, bestVersion),
                 "#currently-installed-mono-version-is-old-and-unsupported");
         }
 

src/NzbDrone.Core/Localization/Core/en.json

@@ -143,6 +143,9 @@
   "MonitoredOnly": "Monitored Only",
   "MonoNotNetCoreCheckMessage": "Please upgrade to the .NET Core version of Radarr",
   "MonoTlsCheckMessage": "Radarr Mono 4.x tls workaround still enabled, consider removing MONO_TLS_PROVIDER=legacy environment option",
+  "MonoVersionCheckNotSupportedMessage": "Currently installed Mono version {0} is no longer supported. Please upgrade Mono to version {1}.",
+  "MonoVersionCheckOldNotSupportedMessage": "Currently installed Mono version {0} is old and unsupported. Please upgrade Mono to version {1}.",
+  "MonoVersionCheckUpgradeRecommendedMessage": "Currently installed Mono version {0} is supported but upgrading to {1} is recommended.",
   "Month": "Month",
   "MoreInfo": "More Info",
   "MountCheckMessage": "Mount containing a movie path is mounted read-only: ",