# What's new in PyPy2.7 7.0+

Make sure zlib decompressobjs have their streams deallocated immediately on flush.

Fix calling copy on already-flushed compressobjs.

Improve performance of long operations where one of the operands fits into an int.

Improve register allocation in the JIT.

Implement rlib.jit.promote_unicode to complement promote_string

Use utf8 internally to represent unicode, with the goal of never using rpython-level unicode

Since _ctypes is implemented in pure python over libffi, add interfaces and methods to support the buffer interface from python. Specifically, add a `__pypy__.newmemoryview` function to create a memoryview and extend the use of the PyPy-specific `__buffer__` class method.