Where is v1.5.2 and 1.6.0-pre.2 in Unity 2021.1.3?

As per-title, I have enabled pre-release in my Unity Package Manager but could not found it anywhere?.

The latest listed is only Version 1.5.0-pre.5!

 

Need to setup it manually in my ..\Packages\packages-lock.json

Code (csharp):

1.  
2. "com.unity.burst": {
3.       "version": "1.6.0-pre.2",
4.       "depth": 0,
5.       "source": "registry",
6.       "dependencies": {
7.         "com.unity.mathematics": "1.2.1"
8.       },
9.       "url": "https://packages.unity.com"
10.     },
11.  

and in ..\Packages\manifest.json

Code (csharp):

1.  
2.     "com.unity.burst": "1.6.0-pre.2",
3.  

Should I report these?