There are two versions: a 32-bit one that is limited to 4GB, and a 64-bit one that is not. We will be releasing the 64-bit one soon, the release candidate is already available on https://downloads.python.org/pypy/. You want the one that has win64 in the name. Please try it out and tell us how it worked for you. Note if you want to use any c-extension packages like NumPy and lxml you will have to compile them yourself. Matti On 1/4/21 10:32 pm, Steven Mathews wrote:

Is pypy still locked to 4GB RAM? Or fully 64bit Windows now? The docs say 'finally done' but doesn't seem to specify if it means compatibility-only or can handle over 4GB now.

There are two versions: a 32-bit one that is limited to 4GB, and a 64-bit one that is not. We will be releasing the 64-bit one soon, the release candidate is already available on https://downloads.python.org/pypy/. You want the one that has win64 in the name. Please try it out and tell us how it worked for you. Note if you want to use any c-extension packages like NumPy and lxml you will have to compile them yourself. Matti On 1/4/21 10:32 pm, Steven Mathews wrote:

Is pypy still locked to 4GB RAM? Or fully 64bit Windows now? The docs say 'finally done' but doesn't seem to specify if it means compatibility-only or can handle over 4GB now.