Booted this mod up alongside the new CE 1.1 update, got red text. Log is as follows:

Combat Extended:: An incompatible and outdated detour has been detected and disabled in the following mod:
Plague Doctor's Suit (Continued)
Verse.Log:Error(String, Boolean)
CombatExtended.HarmonyCE.Compatibility.GraphicApparelDetour_Disable:ReportOffendingDetourMods()
CombatExtended.HarmonyCE.Compatibility.<TargetMethods>d__3:MoveNext()
System.Linq.Enumerable:Any(IEnumerable`1, Func`2)
HarmonyLib.PatchClassProcessor:<GetBulkMethods>g__FailOnResult|12_1(IEnumerable`1)
HarmonyLib.PatchClassProcessor:RunMethod(IEnumerable`1, IEnumerable`1, Func`2, Object[])
HarmonyLib.PatchClassProcessor:GetBulkMethods()
HarmonyLib.PatchClassProcessor:Patch()
HarmonyLib.Harmony:<PatchAll>b__10_0(Type)
HarmonyLib.CollectionExtensions:Do(IEnumerable`1, Action`1)
HarmonyLib.Harmony:PatchAll(Assembly)
CombatExtended.HarmonyCE.HarmonyBase:InitPatches()
CombatExtended.Controller:.ctor(ModContentPack)
System.Reflection.MonoCMethod:InternalInvoke(Object, Object[], Exception&)
System.Reflection.MonoCMethod:InternalInvoke(Object, Object[])
System.Reflection.MonoCMethod:DoInvoke(Object, BindingFlags, Binder, Object[], CultureInfo)
System.Reflection.MonoCMethod:Invoke(BindingFlags, Binder, Object[], CultureInfo)
System.RuntimeType:CreateInstanceImpl(BindingFlags, Binder, Object[], CultureInfo, Object[], StackCrawlMark&)
System.Activator:CreateInstance(Type, BindingFlags, Binder, Object[], CultureInfo, Object[])
System.Activator:CreateInstance(Type, Object[])
Verse.LoadedModManager:CreateModClasses()
Verse.LoadedModManager:LoadAllActiveMods()
Verse.PlayDataLoader:DoPlayLoad()
Verse.PlayDataLoader:LoadAllPlayData(Boolean)
Verse.<>c:<Start>b__6_1()
Verse.LongEventHandler:RunEventFromAnotherThread(Action)
Verse.<>c:<UpdateCurrentAsynchronousEvent>b__27_0()
System.Threading.ThreadHelper:ThreadStart_Context(Object)
System.Threading.ExecutionContext:RunInternal(ExecutionContext, ContextCallback, Object, Boolean)
System.Threading.ExecutionContext:Run(ExecutionContext, ContextCallback, Object, Boolean)
System.Threading.ExecutionContext:Run(ExecutionContext, ContextCallback, Object)
System.Threading.ThreadHelper:ThreadStart()

Followed by a second line that says:

Please ask the developer of this mod to update it with a more compatible patching method, such as the Harmony library.
....