Question NON ECS, Collections Package with Unity 2021.2 has now started throwing runtime errors

Hi there,

I wrote a Non-ECS, Job System with Collections only code which worked fine until I upgraded both Unity 2021.2 and most recent Collections Package.
Now i see errors like this

UnityException: EditorPrefsGetInt is not allowed to be called from a MonoBehaviour constructor (or instance field initializer), call it in Awake or Start instead.

This never happend before, so i sort of know how to solve this with lots of changes
but when this change happened and why?

Code (CSharp):

1. Unity.Collections.NativeLeakDetection.Initialize () (at <4dc2257427d341fb9842705f290f2b68>:0)
2. Unity.Collections.NativeLeakDetection.get_Mode () (at <4dc2257427d341fb9842705f290f2b68>:0)
3. Unity.Collections.LowLevel.Unsafe.DisposeSentinel.CreateInternal (Unity.Collections.LowLevel.Unsafe.DisposeSentinel& sentinel, System.Int32 callSiteStackDepth) (at <4dc2257427d341fb9842705f290f2b68>:0)
4. Unity.Collections.LowLevel.Unsafe.DisposeSentinel.Create (Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle& safety, Unity.Collections.LowLevel.Unsafe.DisposeSentinel& sentinel, System.Int32 callSiteStackDepth, Unity.Collections.Allocator allocator) (at <4dc2257427d341fb9842705f290f2b68>:0)
5. Unity.Collections.NativeList`1[T].Initialize[U] (System.Int32 initialCapacity, U& allocator, System.Int32 disposeSentinelStackDepth) (at Library/PackageCache/com.unity.collections@1.0.0-pre.5/Unity.Collections/NativeList.cs:141)
6. Unity.Collections.NativeList`1[T]..ctor (System.Int32 initialCapacity, Unity.Collections.AllocatorManager+AllocatorHandle allocator, System.Int32 disposeSentinelStackDepth) (at Library/PackageCache/com.unity.collections@1.0.0-pre.5/Unity.Collections/NativeList.cs:176)
7. Unity.Collections.NativeList`1[T]..ctor (System.Int32 initialCapacity, Unity.Collections.AllocatorManager+AllocatorHandle allocator) (at Library/PackageCache/com.unity.collections@1.0.0-pre.5/Unity.Collections/NativeList.cs:120)
8. (at

Regards