Hello,

I'm encountering compatibility issues with NumPy when running BlueSky.

Problem Description:

1. Using NumPy 2.0.0.dev0:
   When I have NumPy version 2.0.0.dev0 installed, running BlueSky results in the following error:
   AttributeError: np.string_was removed in the NumPy 2.0 release. Usenp.bytes_ instead.
   This error occurs in glnavdata.py at line 123:
   npwpids = np.array(wptids, dtype=np.string_)

2. Using Older NumPy Versions (e.g., 1.21.0):
   When I downgrade NumPy to version 1.21.0 or 1.24.0, I receive a different error upon running BlueSky:

Bluesky needs numpy._core.numeric
Install using e.g. pip install numpy._core.numeric
BlueSky normal end.

Environment Information:
Operating System: Windows 11
Python Version: 3.10
BlueSky Version: Installed via pip install bluesky-simulator[full]
NumPy Versions Tried: 2.0.0.dev0, 1.24.0, 1.21.0

Steps to Reproduce:

1. Install BlueSky and NumPy:

pip install bluesky-simulator[full]
pip install numpy==2.0.0.dev0  # For the first error
# or
pip install numpy==1.21.0      # For the second error

2. Run BlueSky:
bluesky

3. Observe the respective errors mentioned above.

Questions:

• Is there a recommended NumPy version that is fully compatible with BlueSky?
• How can I resolve these conflicting errors when using different NumPy versions?

Additional Notes:

Modifying the source code (e.g., replacing np.string_ with np.bytes_) might be a workaround for the first error, but I'm unsure of the implications.
When using older NumPy versions, the module numpy._core.numeric seems to be missing, leading to the second error.
Any guidance on how to resolve these issues would be greatly appreciated.

Thank you!