The iconic Java framework has evolved and modernized, integrating a host of new features without sacrificing power or simplicity.
On free-threading there is a large ~20% performance regression under asyncio_tcp_ssl benchmark. A large part of slowdown is from #124993 which added critical sections and locks for thread safety ...
There is a race condition in the threading module where a parent thread calling Thread.start() can wait forever if the newly created thread crashes with a MemoryError ...