Possile MD5 Skill Issue

[WinterLily]

Describe the bug
hash.md5 doesn't seem to be working, attempting to compile a rule (yara-python) throws 'yara.SyntaxError: ~/analyzeFile/yaraRules/sourceRules/./malware/RAT_CrossRAT.yar(19): invalid field name "md5"'
To Reproduce
Steps to reproduce the behavior:

1. New Ubuntu 22.04 server,
2. YARA built from source.
3. yara-python module installed.
4. Attempt to compile rule containing hash.md5(0, filesize) == "some_hash" condition.

Expected behavior
Would expect the rule to compile.

Please complete the following information:

• OS: Ubuntu 22.04.3 LTS
• YARA version: 4.4

Additional context
This also happens for sha1 and sha256 - I'm aware that OpenSSL has recently deprecated these, but I assume there is/will be some workaround so that hash-based rules continue to work?