PyPy 7.3.23 is released as a bug-fix update following the previous release on April 26, 2026. The update fixes an overly eager warning about unused coroutines and addresses issues related to multiple inheritance in C-extensions. A change to the bytecode interpreter makes it use exception tables instead of dedicated opcodes, bringing PyPy disassembly closer to CPython format without impacting performance so far. The release provides two interpreters from the same codebase: PyPy2.7 for Python 2.7 syntax and features with the CPython 2.7.18+ backported security updates, and PyPy3.11 for Python 3.11 syntax and features with the CPython 3.11.15 stdlib. It is a micro release with API compatibility across 7.3 versions and recommends updating.
"This is a bug-fix release that fixes an overeager warning about unused coroutines, and some problems around multiple inheritance in c-extensions."
"This version includes a change to the bytecode interpreter to use exception tables instead of dedicated opcodes. Now the PyPy disassembly will be closer to CPython format. So far it does not impact performance."
"PyPy2.7, which is an interpreter supporting the syntax and the features of Python 2.7 including the stdlib for CPython 2.7.18+ (the + is for backported security updates)"
"PyPy3.11, which is an interpreter supporting the syntax and the features of Python 3.11, including the stdlib for CPython 3.11.15."
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