Changes:
3.6.4
-----
Documentation
-------------
- bpo-32105: Added asyncio.BaseEventLoop.connect_accepted_socket
versionaddded marker.
- bpo-31537: Fix incorrect usage of ``get_history_length`` in readline
documentation example code. Patch by Brad Smith.
- bpo-30085: The operator functions without double underscores are preferred
for clarity. The one with underscores are only kept for back-
compatibility.
Python 3.6.4 release candidate 1:
Core and Builtins
-----------------
- bpo-32176: co_flags.CO_NOFREE is now always set correctly by the code
object constructor based on freevars and cellvars, rather than needing to
be set correctly by the caller. This ensures it will be cleared
automatically when additional cell references are injected into a modified
code object and function.
- bpo-31949: Fixed several issues in printing tracebacks
(PyTraceBack_Print()).
* Setting sys.tracebacklimit to 0 or less now suppresses printing tracebacks.
* Setting sys.tracebacklimit to None now causes using the default limit.
* Setting sys.tracebacklimit to an integer larger than LONG_MAX now means using
the limit LONG_MAX rather than the default limit.
* Fixed integer overflows in the case of more than 2**31 traceback items on
Windows.
* Fixed output errors handling.
- bpo-30696: Fix the interactive interpreter looping endlessly when no
memory.
- bpo-20047: Bytearray methods partition() and rpartition() now accept only
bytes-like objects as separator, as documented. In particular they now
raise TypeError rather of returning a bogus result when an integer is
passed as a separator.
- bpo-31852: Fix a segmentation fault caused by a combination of the async
soft keyword and continuation lines.
- bpo-21720: BytesWarning no longer emitted when the *fromlist* argument of
__import__() or the __all__ attribute of the module contain bytes
instances.
- bpo-31825: Fixed OverflowError in the 'unicode-escape' codec and in
codecs.escape_decode() when decode an escaped non-ascii byte.
- bpo-28603: Print the full context/cause chain of exceptions on interpreter
exit, even if an exception in the chain is unhashable or compares equal to
later ones. Patch by Zane Bitter.
- bpo-31786: Fix timeout rounding in the select module to round correctly
negative timeouts between -1.0 and 0.0. The functions now block waiting
for events as expected. Previously, the call was incorrectly non-blocking.
Patch by Pablo Galindo.
- bpo-31642: Restored blocking "from package import module" by setting
sys.modules["package.module"] to None.
- bpo-31626: Fixed a bug in debug memory allocator. There was a write to
freed memory after shrinking a memory block.
- bpo-31619: Fixed a ValueError when convert a string with large number of
underscores to integer with binary base.
- bpo-31592: Fixed an assertion failure in Python parser in case of a bad
unicodedata.normalize(). Patch by Oren Milman.
- bpo-31588: Raise a TypeError with a helpful error message when class
creation fails due to a metaclass with a bad __prepare__() method.
Patch by Oren Milman.
- bpo-31566: Fix an assertion failure in _warnings.warn() in case of a bad
__name__ global. Patch by Oren Milman.
- bpo-31505: Fix an assertion failure in json, in case
_json.make_encoder() received a bad encoder() argument. Patch by Oren
Milman.
- bpo-31492: Fix assertion failures in case of failing to import from a
module with a bad __name__ attribute, and in case of failing to access
an attribute of such a module. Patch by Oren Milman.
- bpo-31490: Fix an assertion failure in ctypes class definition, in case
the class has an attribute whose name is specified in _anonymous_ but
not in _fields_. Patch by Oren Milman.
- bpo-31478: Fix an assertion failure in _random.Random.seed() in case the
argument has a bad __abs__() method. Patch by Oren Milman.
- bpo-31315: Fix an assertion failure in imp.create_dynamic(), when
spec.name is not a string. Patch by Oren Milman.
- bpo-31311: Fix a crash in the __setstate__() method of
ctypes._CData, in case of a bad __dict__. Patch by Oren Milman.
- bpo-31293: Fix crashes in true division and multiplication of a timedelta
object by a float with a bad as_integer_ratio() method. Patch by Oren
Milman.
- bpo-31285: Fix an assertion failure in warnings.warn_explicit, when the
return value of the received loader's get_source() has a bad splitlines()
method. Patch by Oren Milman.
- bpo-30817: PyErr_PrintEx() clears now the ignored exception that may be
raised by _PySys_SetObjectId(), for example when no memory.
Library
-------
- bpo-28556: Two minor fixes for typing module: allow shallow copying
instances of generic classes, improve interaction of __init_subclass__
with generics.
- bpo-27240: The header folding algorithm for the new email policies has
been rewritten, which also fixes bpo-30788, bpo-31831, and bpo-32182. In
particular, RFC2231 folding is now done correctly.
- bpo-32186: io.FileIO.readall() and io.FileIO.read() now release the GIL
when getting the file size. Fixed hang of all threads with inaccessible
NFS server. Patch by Nir Soffer.
- bpo-12239: Make :meth:msilib.SummaryInformation.GetProperty return
None when the value of property is VT_EMPTY. Initial patch by
Mark Mc Mahon.
- bpo-31325: Fix wrong usage of :func:collections.namedtuple in the
:meth:RobotFileParser.parse() <urllib.robotparser.RobotFileParser.parse>
method.
- bpo-12382: :func:msilib.OpenDatabase now raises a better exception
message when it couldn't open or create an MSI file. Initial patch by
William Tisäter.
- bpo-32110: codecs.StreamReader.read(n) now returns not more than *n*
characters/bytes for non-negative *n*. This makes it compatible with
read() methods of other file-like objects.
- bpo-32072: Fixed issues with binary plists:
* Fixed saving bytearrays.
* Identical objects will be saved only once.
* Equal references will be load as identical objects.
* Added support for saving and loading recursive data structures.
- bpo-32034: Make asyncio.IncompleteReadError and LimitOverrunError
pickleable.
- bpo-32015: Fixed the looping of asyncio in the case of reconnection the
socket during waiting async read/write from/to the socket.
- bpo-32011: Restored support of loading marshal files with the TYPE_INT64
code. These files can be produced in Python 2.7.
- bpo-31970: Reduce performance overhead of asyncio debug mode.
- bpo-9678: Fixed determining the MAC address in the uuid module:
* Using ifconfig on NetBSD and OpenBSD.
* Using arp on Linux, FreeBSD, NetBSD and OpenBSD.
Based on patch by Takayuki Shimizukawa.
- bpo-30057: Fix potential missed signal in signal.signal().
- bpo-31933: Fix Blake2 params leaf_size and node_offset on big endian
platforms. Patch by Jack O'Connor.
- bpo-31927: Fixed compilation of the socket module on NetBSD 8. Fixed
assertion failure or reading arbitrary data when parse a AF_BLUETOOTH
address on NetBSD and DragonFly BSD.
- bpo-27666: Fixed stack corruption in curses.box() and curses.ungetmouse()
when the size of types chtype or mmask_t is less than the size of C long.
curses.box() now accepts characters as arguments. Based on patch by Steve
Fink.
- bpo-31897: plistlib now catches more errors when read binary plists and
raises InvalidFileException instead of unexpected exceptions.
- bpo-25720: Fix the method for checking pad state of curses WINDOW. Patch
by Masayuki Yamamoto.
- bpo-31893: Fixed the layout of the kqueue_event structure on OpenBSD and
NetBSD. Fixed the comparison of the kqueue_event objects.
- bpo-31891: Fixed building the curses module on NetBSD.
- bpo-28416: Instances of pickle.Pickler subclass with the persistent_id()
method and pickle.Unpickler subclass with the persistent_load() method no
longer create reference cycles.
- bpo-28326: Fix multiprocessing.Process when stdout and/or stderr is closed
or None.
- bpo-31457: If nested log adapters are used, the inner process()
methods are no longer omitted.
- bpo-31457: The manager property on LoggerAdapter objects is now
properly settable.
- bpo-31806: Fix timeout rounding in time.sleep(), threading.Lock.acquire()
and socket.socket.settimeout() to round correctly negative timeouts
between -1.0 and 0.0. The functions now block waiting for events as
expected. Previously, the call was incorrectly non-blocking. Patch by
Pablo Galindo.
- bpo-28603: traceback: Fix a TypeError that occurred during printing of
exception tracebacks when either the current exception or an exception in
its context/cause chain is unhashable. Patch by Zane Bitter.
- bpo-30058: Fixed buffer overflow in select.kqueue.control().
- bpo-31770: Prevent a crash when calling the __init__() method of a
sqlite3.Cursor object more than once. Patch by Oren Milman.
- bpo-31672: idpattern in string.Template matched some non-ASCII
characters. Now it uses -i regular expression local flag to avoid non-
ASCII characters.
- bpo-31764: Prevent a crash in sqlite3.Cursor.close() in case the
Cursor object is uninitialized. Patch by Oren Milman.
- bpo-31752: Fix possible crash in timedelta constructor called with custom
integers.
- bpo-31701: On Windows, faulthandler.enable() now ignores MSC and COM
exceptions.
- bpo-31728: Prevent crashes in _elementtree due to unsafe cleanup of
Element.text and Element.tail. Patch by Oren Milman.
- bpo-31620: an empty asyncio.Queue now doesn't leak memory when queue.get
pollers timeout
- bpo-31632: Fix method set_protocol() of class _SSLProtocolTransport in
asyncio module. This method was previously modifying a wrong reference to
the protocol.
- bpo-31675: Fixed memory leaks in Tkinter's methods splitlist() and split()
when pass a string larger than 2 GiB.
- bpo-31673: Fixed typo in the name of Tkinter's method adderrorinfo().
- bpo-30806: Fix the string representation of a netrc object.
- bpo-15037: Added a workaround for getkey() in curses for ncurses 5.7 and
earlier.
- bpo-25351: Avoid venv activate failures with undefined variables
- bpo-25532: inspect.unwrap() will now only try to unwrap an object
sys.getrecursionlimit() times, to protect against objects which create a
new object on every attribute access.
- bpo-30347: Stop crashes when concurrently iterate over itertools.groupby()
iterators.
- bpo-31516: threading.current_thread() should not return a dummy thread
at shutdown.
- bpo-31351: python -m ensurepip now exits with non-zero exit code if pip
bootstrapping has failed.
- bpo-31482: random.seed() now works with bytes in version=1
- bpo-31334: Fix poll.poll([timeout]) in the select module for
arbitrary negative timeouts on all OSes where it can only be a non-
negative integer or -1. Patch by Riccardo Coccioli.
- bpo-31310: multiprocessing's semaphore tracker should be launched again if
crashed.
- bpo-31308: Make multiprocessing's forkserver process immune to Ctrl-C and
other user interruptions. If it crashes, restart it when necessary.
Documentation
-------------
- bpo-32105: Added asyncio.BaseEventLoop.connect_accepted_socket
versionaddded marker.
- bpo-31537: Fix incorrect usage of get_history_length in readline
documentation example code. Patch by Brad Smith.
- bpo-30085: The operator functions without double underscores are preferred
for clarity. The one with underscores are only kept for back-
compatibility.
Tests
-----
- bpo-31380: Skip test_httpservers test_undecodable_file on macOS: fails on
APFS.
- bpo-31705: Skip test_socket.test_sha256() on Linux kernel older than 4.5.
The test fails with ENOKEY on kernel 3.10 (on ppc64le). A fix was merged
into the kernel 4.5.
- bpo-31174: Fix test_tools.test_unparse: DirectoryTestCase now stores the
names sample to always test the same files. It prevents false alarms when
hunting reference leaks.
- bpo-30695: Add the set_nomemory(start, stop) and remove_mem_hooks()
functions to the _testcapi module.
Build
-----
- bpo-32059: detect_modules() in setup.py now also searches the
sysroot paths when cross-compiling.
- bpo-31957: Fixes Windows SDK version detection when building for Windows.
- bpo-31609: Fixes quotes in PCbuild/clean.bat
- bpo-31934: Abort the build when building out of a not clean source tree.
- bpo-31926: Fixed Argument Clinic sometimes causing compilation errors when
there was more than one function and/or method in a .c file with the same
name.
- bpo-28791: Update Windows builds to use SQLite 3.21.0.
- bpo-28791: Update OS X installer to use SQLite 3.21.0.
- bpo-22140: Prevent double substitution of prefix in python-config.sh.
- bpo-31536: Avoid wholesale rebuild after make regen-all if nothing
changed.
Windows
-------
- bpo-1102: Return None when View.Fetch() returns
ERROR_NO_MORE_ITEMS instead of raising MSIError.
- bpo-31944: Fixes Modify button in Apps and Features dialog.
macOS
-----
- bpo-31392: Update macOS installer to use OpenSSL 1.0.2m
Changes 0.13.1:
[ Language Changes ]
* Pythons 2.6, 3.0, 3.1, and 3.2 are no longer supported
* let has been removed. Python's scoping rules do not make a proper
implementation of it possible. Use setv instead.
* lambda has been removed, but fn now does exactly what lambda did
* defreader has been renamed to defsharp; what were previously called
"reader macros", which were never true reader macros, are now called
"sharp macros"
* try now enforces the usual Python order for its elements (else must
follow all excepts, and finally must come last). This is only a
syntactic change; the elements were already run in Python order even when
defined out of order.
* try now requires an except or finally clause, as in Python
* Importing or executing a Hy file automatically byte-compiles it, or loads
a byte-compiled version if it exists and is up to date. This brings big
speed boosts, even for one-liners, because Hy no longer needs to recompile
its standard library for every startup.
* Added bytestring literals, which create bytes objects under Python 3
and str objects under Python 2
* Commas and underscores are allowed in numeric literals
* Many more operators (e.g., **, //, not, in) can be used
as first-class functions
* The semantics of binary operators when applied to fewer or more
than two arguments have been made more logical
* (** a b c d) is now equivalent to (** a (** b (** c d))),
not (** (** (** a b) c) d)
* setv always returns None
* When a try form executes an else clause, the return value for the
try form is taken from else instead of the try body. For example,
(try 1 (except [ValueError] 2) (else 3)) returns 3.
* xor: If exactly one argument is true, return it
* hy.core.reserved is now hy.extra.reserved
* cond now supports single argument branches
[ Bug Fixes ]
* All shadowed operators have the same arities as real operators
* Shadowed comparison operators now use and instead of &
for chained comparisons
* partition no longer prematurely exhausts input iterators
* read and read-str no longer raise an error when the input
parses to a false value (e.g., the empty string)
* A yield inside of a with statement will properly suppress implicit
returns
* setv no longer unnecessarily tries to get attributes
* loop no longer replaces string literals equal to "recur"
* The REPL now prints the correct value of do and try forms
* Fixed a crash when tokenizing a single quote followed by whitespace
[ Misc. Improvements ]
* New contrib module hy-repr
* Added a command-line option --repl-output-fn
* Change PKGNAME as a name of tarball
Changelog:
GnuCOBOL 2.2 released (20170906)
* Move to GPL/LGPL 3
* New GnuCOBOL features (too much to list)
** User Defined Functions, FUNCTION-ID.
** New intrinsic functions
ABSOLUTE-VALUE alias for ABS
CURRENCY-SYMBOL CURRENCY-SYMBOL of the current program
FORMATTED-CURRENT-DATE ISO 8601 datetime function
FORMATTED-DATE ISO 8601 datetime function
FORMATTED-DATETIME ISO 8601 datetime function
FORMATTED-TIME ISO 8601 datetime function
TEST-FORMATTED-DATETIME ISO 8601 datetime function
INTEGER-OF-FORMATTED-DATE date to integer
HIGHEST-ALGEBRAIC now implemented
LOWEST-ALGEBRAIC now implemented
LOCALE-COMPARE now implemented
NUMVAL-F now implemented
TEST-NUMVAL now implemented
TEST-NUMVAL-C now implemented
TEST-NUMVAL-F now implemented
LENGTH-AN alias for BYTE-LENGTH
MODULE-CALLER-ID return the name of the caller
MODULE-DATE current module: compilation date
MODULE-TIME current module: compilation time
MODULE-FORMATTED-DATE current module: formatted datetime
MODULE-ID current module: PROGRAM-ID
MODULE-PATH current module: path on compile time
MODULE-SOURCE current module: name on compile time
MONETARY-DECIMAL-POINT LOCALE based fiscal decimal point
MONETARY-THOUSANDS-SEPARATOR LOCALE based fiscal visual grouping separator
Note:
The functions that are actually available as intrinsic functions depend
on the -std used. Function names that aren't marked as intrinsic functions
by the current -std can be used freely as user defined words or
even as user defined functions.
** New system functions
C$CALLEDBY return the name of the caller
CBL_GC_FORK fork current process (not on Windows)
CBL_GC_WAITPID wait for process to end
CBL_GC_GETOPT (CBL_OC_GETOPT) comand lineoption parser for COBOL
CBL_GC_PRINTABLE (C$PRINTABLE) check if character is printable
CBL_GC_HOSTED (CBL_OC_HOSTED) provides access to C extern variables,
like stdin, errno
CBL_GC_NANOSLEEP CBL_OC_NANOSLEEP
CBL_GET_SCR_SIZE get current terminal size - if any
CBL_READ_KBD_CHAR get character from terminal
CBL_SET_CSR_POS set current position on terminal
x'E4' clear terminal screen
x'E5' ring the bell
** many new / extended COBOL statements from COBOL2002/2014 and extensions
from different COBOL dialects
** more SWITCHes: from SWITCH-01 to SWITCH-36 and its variants from many
COBOL dialects
** more IEEE numeric types added, FLOAT-DECIMAL-16, FLOAT-DECIMAL-34, etc
** more literal types added, numeric boolean etc.
** most of the COBOL 2014 spec Compiler Directive Facility is in
** optional: stricter syntax checks
** refactored and extended compiler and runtime messages with available
translations (currently to Spanish, Portuguese and Dutch, partial to German)
** screen IO: many extended ACCEPT DISPLAY and SCREEN SECTION changes
** Direct call interface for C:
CALL-CONVENTIONS for CALLs and PROCEDURE DIVISION
SIZE of parameters specified for CALL ... BY VALUE
RETURN NOTHING for calling void functions
RETURN ADDRESS OF VAR for calling functions returning a pointer
PROCEDURE DIVISION RETURNING OMITTED -> callable as void function
** Much, much more!
* New cobc options:
** New -std options:
cobol2014 COBOL 2014 Standard
xopen X/Open COBOL Standard
mf-strict Micro Focus COBOL compatibility - strict
ibm-strict IBM COBOL compatibility - strict
ibm-strict MVS/VM COBOL compatibility - strict
acu ACUCOBOL-GT compatibility
acu-strict ACUCOBOL-GT compatibility - strict
bs2000 BS2000 COBOL compatibility (back again)
bs2000-strict BS2000 COBOL compatibility - strict
rm RM-COBOL compatibility
rm-strict RM-COBOL compatibility - strict
Note:
The GnuCOBOL compiler tries to limit both the feature-set and reserved words
to the specified compiler when the "strict" dialects are used.
COBOL sources compiled with these dialects are therefore likely to compile
with the specified compiler and vice versa: sources that were compiled on
the specified compiler should compile without any issues with GnuCOBOL.
With the "non-strict" dialects GnuCOBOL will activate the complete
feature-set where it doesn't directly conflict with the specified dialect,
including reserved words and GnuCOBOL specific extensions.
COBOL sources compiled with these dialects therefore may work only
with GnuCOBOL. COBOL sources may need a change because of rich feature-set
and reserved words in GnuCOBOL, otherwise offending words may be removed
by `-fno-reserved=word`.
COBOL-85, X/Open COBOL, COBOL 2002 and COBOL 2014 are always "strict".
** New listing options:
-t listing, -T wide listing, --tlines=lines, lines per page of listing
-Xref
Note: -P, generate preprocessor listing, is still available (and improved)
** All compiler configuration flags may be set on command line
to override a specific setting of the current -std, see cobc --help
** All Warnings can be explicit enabled/disabled or even marked as error,
see cobc --help
-Wunreachable report on possible unreachable statements
** Options for the C compiler/linker:
-K <entry>, compile entry point as static (resolve at link time)
-A, add options to C compile phase
-Q, add options to C link phase
** Miscellaneous
-i -info, display build/environment
-D define symbol for Compiler Directive Facility
-j -job=args, run job after compile
input filename of '-' reads source from standard in
For more: see cobc --help
* New cobcrun options:
-i -info, display build/environment
-r -runtime-env, display runtime configuration
-c -config, set runtime config from file
-M -module, set path/module name when looking for entry
* New build features
make test downloads NIST testsuite if necessary
now usable with parallel builds (make -j4 test)
make checkall runs both the internal an NIST testsuite
** testsuite defaults to coloured output
** Windows(tm) Visual Studio build support files added,
options to validate the software generated with VS against both test suites
** removed maintainer mode - if files need a rebuild because of a change
they are always rebuild
** help2man, bison and flex are checked during configure,
if they need to be invoked and are missing a useful error message is given
** All files created by GnuCOBOL runtime use the same file permission settings
now: COB_FILE_MODE which was changed to 0666
** changed unix package name from "gnu-cobol" to "gnucobol"
async_hooks:
- add trace events to async_hooks
- add provider types for net server
console:
- console.debug can now be used outside of the inspector
deps:
- upgrade libuv to 1.18.0
- patch V8 to 6.2.414.46
module:
- module.builtinModules will return a list of built in modules
n-api:
- add helper for addons to get the event loop
process:
- process.setUncaughtExceptionCaptureCallback can now be used to
customize behavior for --abort-on-uncaught-exception
- A signal handler is now able to receive the signal code that
triggered the handler.
src:
- embedders can now use Node::CreatePlatform to create an instance of
NodePlatform
stream:
- writable.writableHighWaterMark and readable.readableHighWaterMark
will return the values the stream object was instantiated with
Ruby 2.2.9 Released
Posted by usa on 14 Dec 2017
Ruby 2.2.9 has been released. This release includes several security
fixes. Please check the topics below for details.
* CVE-2017-17405: Command injection vulnerability in Net::FTP
* Unsafe Object Deserialization Vulnerability in RubyGems
Ruby 2.2 is now under the state of the security maintenance phase, until the
end of the March of 2018. After the date, maintenance of Ruby 2.2 will be
ended. We recommend you start planning migration to newer versions of Ruby,
such as 2.4 or 2.3.
Update ruby24-base/ruby24 to 2.4.3.
Ruby 2.4.3 Released
Posted by nagachika on 14 Dec 2017
Ruby 2.4.3 has been released.
This release includes some bug fixes and a security fix.
* CVE-2017-17405: Command injection vulnerability in Net::FTP
There are also som bug fixes. See commit logs for more details.
Update ruby23-base/ruby23 to 2.3.6.
Ruby 2.3.6 has been released.
This release includes about 10 bug fixes after the previous release,
and also includes several security fixes. Please check the topics
below for details.
* CVE-2017-17405: Command injection vulnerability in Net::FTP
* Unsafe Object Deserialization Vulnerability in RubyGems
See the ChangeLog for details.
Some highlights:
crypto, ssl:
- The crypto API is extended to use private/public keys
stored in an Engine for sign/verify or encrypt/decrypt
operations.
- The ssl application provides an API to use this new
engine concept in TLS.
ssh:
- SSH can now fetch the host key from the private keys
stored in an Engine. See the crypto application for
details about Engines.
ssl:
- A new command line option -ssl_dist_optfile has been
added to facilitate specifying the many options needed
when using SSL as the distribution protocol.
stdlib:
- Improve performance of the new string functionality
when handling ASCII characters.
Full release notes:
http://www.erlang.org/download/otp_src_20.2.readme
This is a useless library (we've built it incorrectly for a long time so it
contains no valid symbols) that only creates CONFLICTS with other python3
packages. No objection on tech-pkg. Bump PKGREVISION.
This is a useless library (we've built it incorrectly for a long time so it
contains no valid symbols) that only creates CONFLICTS with other python3
packages. No objection on tech-pkg. Bump PKGREVISION.
This is a useless library (we've built it incorrectly for a long time so it
contains no valid symbols) that only creates CONFLICTS with other python3
packages. No objection on tech-pkg. Bump PKGREVISION.
The update broke MesaLib, which blocks a vast number of packages. In
the interest of stability heading towards 2017Q4, revert it, leaving
the issue of how to handle updates to this package (how much testing
is required, keeping multiple versions, etc.) to after the branch.
- build: fix npm install with --shared
- build: building with python 3 is now supported
- src: v8 options can be specified with either '_' or '-' in NODE_OPTIONS
Upstream Changelog is large; bug fixes are omitted and heaeders only
follow; see NEWS for details.
Changes in 2.2.3 (since 2.2.2):
* New interfaces and functionality
** (web uri) module has better support for RFC 3986
** `struct-ref/unboxed' and `struct-set!/unboxed'
** Improved support for arrays with non-zero lower bounds
** Add `uintptr_t' and `intptr_t' to FFI types.
* Compiler improvements
** Improve speed of compiler backend for functions without loops
** Disable slot pre-coloring for optimization level "-O1" or below
** Improve complexity of constant subexpression elimination pass
** CPS conversion avoids generating return arity adapters if possible
* New deprecations
** Using `uri?' as a predicate on relative-refs deprecated
** Struct tail arrays deprecated
** Struct "self" slots deprecated
** Struct fields with opaque ("o") protection deprecated
** Using `struct-ref' and `struct-set!' on unboxed fields is deprecated
Changes in 2.2.2 (since 2.2.1):
Changes in 2.2.1 (since 2.2.0):
* Notable changes
** New sandboxed evaluation facility
** All literal constants are read-only
** Syntax objects are now a distinct type
5.0.0:
Non-comprehensive list of changes in this release
* LLVM’s WeakVH has been renamed to WeakTrackingVH and a new WeakVH has been introduced. The new WeakVH nulls itself out on deletion, but does not track values across RAUW.
* A new library named BinaryFormat has been created which holds a collection of code which previously lived in Support. This includes the file_magic structure and identify_magic functions, as well as all the structure and type definitions for DWARF, ELF, COFF, WASM, and MachO file formats.
* The tool llvm-pdbdump has been renamed llvm-pdbutil to better reflect its nature as a general purpose PDB manipulation / diagnostics tool that does more than just dumping contents.
* The BBVectorize pass has been removed. It was fully replaced and no longer used back in 2014 but we didn’t get around to removing it. Now it is gone. The SLP vectorizer is the suggested non-loop vectorization pass.
* A new tool opt-viewer.py has been added to visualize optimization remarks in HTML. The tool processes the YAML files produced by clang with the -fsave-optimization-record option.
* A new CMake macro LLVM_REVERSE_ITERATION has been added. If enabled, all supported unordered LLVM containers would be iterated in reverse order. This is useful for uncovering non-determinism caused by iteration of unordered containers. Currently, it supports reverse iteration of SmallPtrSet and DenseMap.
* A new tool llvm-dlltool has been added to create short import libraries from GNU style definition files. The tool utilizes the PE COFF SPEC Import Library Format and PE COFF Auxiliary Weak Externals Format to achieve compatibility with LLD and MSVC LINK.
* Disable SunOS support for a while
Changelog:
Version 1.22.1 (2017-11-22)
Update Cargo to fix an issue with macOS 10.13 "High Sierra"
Version 1.22.0 (2017-11-22)
Language
non_snake_case lint now allows extern no-mangle functions
Now accepts underscores in unicode escapes
T op= &T now works for numeric types. eg. let mut x = 2; x += &8;
types that impl Drop are now allowed in const and static types
Compiler
rustc now defaults to having 16 codegen units at debug on supported
platforms.
rustc will no longer inline in codegen units when compiling for debug
This should decrease compile times for debug builds.
strict memory alignment now enabled on ARMv6
Remove support for the PNaCl target le32-unknown-nacl
Libraries
Allow atomic operations up to 32 bits on armv5te_unknown_linux_gnueabi
Box<Error> now impls From<Cow<str>>
std::mem::Discriminant is now guaranteed to be Send + Sync
fs::copy now returns the length of the main stream on NTFS.
Properly detect overflow in Instant += Duration.
impl Hasher for {&mut Hasher, Box<Hasher>}
impl fmt::Debug for SplitWhitespace.
Option<T> now impls Try This allows for using ? with Option types.
Stabilized APIs
Cargo
Cargo will now build multi file examples in subdirectories of the
examples folder that have a main.rs file.
Changed [root] to [package] in Cargo.lock Packages with the old
format will continue to work and can be updated with cargo update.
Now supports vendoring git repositories
Misc
libbacktrace is now available on Apple platforms.
Stabilised the compile_fail attribute for code fences in doc-comments.
This now lets you specify that a given code example will fail to compile.
Compatibility Notes
The minimum Android version that rustc can build for has been
bumped to 4.0 from 2.3
Allowing T op= &T for numeric types has broken some type inference cases
