For references:

PEP 0302: New Import Hooks
PEP 0327: Decimal Data Type
PEP 0339: Design of the CPython Compiler
PEP 0362: Function Signature Object
PEP 0364: Transitioning to the Py3K Standard Library
PEP 0372: Adding an ordered dictionary to collections
PEP 0380: Syntax for Delegating to a Subgenerator
PEP 0382: Namespace Packages
PEP 0393: Flexible String Representation
PEP 0400: Deprecate codecs.StreamReader and codecs.StreamWriter
PEP 0403: General purpose decorator clause (aka "@in" clause)
PEP 0404: Python 2.8 Un-release Schedule
PEP 0410: Use decimal.Decimal type for timestamps
PEP 0416: Add a frozendict builtin type
PEP 0418: Add monotonic time, performance counter, and process time functions
PEP 0420: Implicit Namespace Packages
PEP 0426: Metadata for Python Software Packages 2.0
PEP 0432: Simplifying the CPython startup sequence
PEP 0433: Easier suppression of file descriptor inheritance
PEP 0437: A DSL for specifying signatures, annotations and argument converters
PEP 0446: Make newly created file descriptors non-inheritable
PEP 0457: Syntax For Positional-Only Parameters
PEP 0461: Adding % formatting to bytes and bytearray
PEP 0472: Support for indexing with keyword arguments
PEP 0488: Elimination of PYO files
PEP 0498: Literal String Interpolation
PEP 0628: Add ``math.tau``
PEP 3103: A Switch/Case Statement
PEP 3104: Access to Names in Outer Scopes
PEP 3108: Standard Library Reorganization
PEP 3121: Extension Module Initialization and Finalization
PEP 3127: Integer Literal Support and Syntax
PEP 3131: Supporting Non-ASCII Identifiers
PEP 3137: Immutable Bytes and Mutable Buffer
PEP 3141: A Type Hierarchy for Numbers
PEP 3147: PYC Repository Directories
PEP 3149: ABI version tagged .so files
PEP 3150: Statement local namespaces (aka "given" clause)
PEP 3156: Asynchronous IO Support Rebooted: the "asyncio" Module