Author: Matti Picus <[email protected]>
Branch:
Changeset: r86502:2fe6d5f48eb5
Date: 2016-08-25 00:45 +1000
http://bitbucket.org/pypy/pypy/changeset/2fe6d5f48eb5/
Log: document commits to default up to July 15
diff --git a/pypy/doc/release-pypy2.7-v5.4.0.rst
b/pypy/doc/release-pypy2.7-v5.4.0.rst
--- a/pypy/doc/release-pypy2.7-v5.4.0.rst
+++ b/pypy/doc/release-pypy2.7-v5.4.0.rst
@@ -59,14 +59,82 @@
* New features:
+ * Add `sys.{get,set}dlopenflags`
+
+ * Improve CPython compatibility of 'is' for small and empty strings
+
+ * Support for rgc.FinalizerQueue in the Boehm garbage collector
+
+ * (RPython) support spawnv() if it is called in C `_spawnv` on windows
+
+ * Fill in more slots when creating a PyTypeObject from a W_TypeObject,
+ like `__hex__`, `__sub__`, `__pow__`
+
+ * Copy CPython's logic more closely for `isinstance()` and
+ `issubclass()` as well as `type.__instancecheck__()` and
+ `type.__subclasscheck__()`
+
* Bug Fixes
+ * Reject `mkdir()` in read-only sandbox filesystems
+
+ * Add include guards to pymem.h to enable c++ compilation
+
+ * Fix OpenBSD build breakage and support OpenBSD in VMProf.
+
+ * Fix for `bytearray('').replace('a', 'ab')` for empty strings
+
+ * Sync internal state before calling `PyFile_AsFile()`
+
+ * Allow writing to a char* from `PyString_AsString()` until it is
+ forced, also refactor `PyStringObject` to look like CPython's
+ and allow subclassing `PyString_Type` and `PyUnicode_Type`
+
+ * Rpython rffi's socket(2) wrapper did not preserve errno
+
+ * Refactor `PyTupleObject` to look like CPython's and allow
+ subclassing `PyTuple_Type`
+
+ * Allow c-level assignment to a function pointer in a C-API
+ user-defined type after calling PyTypeReady by retrieving
+ a pointer to the function via offsets
+ rather than storing the function pointer itself
+
+ * Use `madvise(MADV_FREE)`, or if that doesn't exist
+ `MADV_DONTNEED` on freed arenas to release memory back to the
+ OS for resource monitoring
+
* Issues reported with our previous release were resolved_ after
reports from users on our issue tracker at
https://bitbucket.org/pypy/pypy/issues or on IRC at #pypy
* Performance improvements:
+ * Add a before_call()-like equivalent before a few operations like
+ `malloc_nursery`, to move values from registers into other registers
+ instead of to the stack.
+
+ * More tightly pack the stack when calling with `release gil`
+
+ * Support `int_floordiv()`, `int_mod()` in the JIT more efficiently
+ and add `rarithmetic.int_c_div()`, `rarithmetic.int_c_mod()` as
+ explicit interfaces. Clarify that `int_floordiv()` does python-style
+ rounding, unlike `llop.int_floordiv()`.
+
+ * Use `ll_assert` (more often) in incminimark
+
+ * (Testing) Simplify handling of interp-level tests and make it
+ more forward-compatible. Don't use interp-level RPython
+ machinery to test building app-level extensions in cpyext
+
+ * Constant-fold `ffi.offsetof("structname", "fieldname")` in cffi
+ backend
+
+ * Avoid a case in the JIT, where successive guard failures in
+ the same Python function end up as successive levels of
+ RPython functions, eventually exhausting the stack, while at
+ app-level the traceback is very short
+
.. _resolved: http://doc.pypy.org/en/latest/whatsnew-5.3.0.html
Please update, and continue to help us make PyPy better.
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