Help Obsolete function warnings in Unity 2021.3.2f1 with Obi 6.4

[bagelbaker]

Hello,

Using

• Unity 2021.3.2f1
  
• Obi 6.4
  
• Burst 1.6.5
  
• Collections 1.2.3
  
• Mathematics 1.2.6
  
• Jobs 0.50.0-preview.9
  

We are getting these compile warnings:

Code:

Assets\Obi\Scripts\Common\Backends\Burst\DataStructures\NativeMultilevelGrid.cs(34,13): warning CS0618: 'UnsafeList' is obsolete: 'Untyped UnsafeList is deprecated, please use UnsafeList<T> instead. (RemovedAfter 2021-05-18)'

Assets\Obi\Scripts\Common\Backends\Burst\DataStructures\NativeMultilevelGrid.cs(39,32): warning CS0618: 'UnsafeList' is obsolete: 'Untyped UnsafeList is deprecated, please use UnsafeList<T> instead. (RemovedAfter 2021-05-18)'

Assets\Obi\Scripts\Common\Backends\Burst\Solver\BurstSolverImpl.cs(314,13): warning CS0618: 'NativeList<int>.CopyFrom(int[])' is obsolete: 'Please use `CopyFromNBC` from `Unity.Collections.NotBurstCompatible` namespace instead. (RemovedAfter 2021-06-22)'

The game still runs and can build a player but we want it to clear those warnings. For the last one, the suggestion is to replace with a function from the "Not Burst Compatible" API which doesn't seem to be the proper way to fix it.

Are these known issues?
How can we fix these?

Cheers