Version 4.2.0 released 2026-10-02

* Start building wheels for Python 3.15 and drop Python 3.8 support

via upgrade to cibuildwheel v4.2.0

https://github.com/simplejson/simplejson/pull/385

* Build and test riscv64 Linux wheels on native RISE runners

https://github.com/simplejson/simplejson/pull/389

* The C scanner now reports the same error message as the pure Python

decoder for an invalid first key in an object

https://github.com/simplejson/simplejson/pull/388

* ``int_as_string_bitcount`` now supports thresholds of 64 bits and above

(including 128-bit integers) in both the C and pure Python encoders;

the C encoder previously rejected them

https://github.com/simplejson/simplejson/pull/387

* Circular references introduced through ``for_json()`` or ``_asdict()``

now raise ``ValueError("Circular reference detected")`` instead of

recursing without bound

https://github.com/simplejson/simplejson/pull/390

* CI now tests Python 3.15 (including free-threaded 3.15t), PyPy 3.12,

CPython 3.14.8 debug builds, and uses current GitHub Actions and

cibuildwheel v4.2.1

https://github.com/simplejson/simplejson/pull/386

Version 4.1.2 released 2026-08-26

* Fix control character error position when content precedes the control char

https://github.com/simplejson/simplejson/pull/379

* Report the offending char, not the backslash, for invalid \X escapes

https://github.com/simplejson/simplejson/pull/380

* Handle non-finite Decimals like floats in the encoder

https://github.com/simplejson/simplejson/pull/381

* Parse failures due to trailing commas are now reported consistently

across implementations

https://github.com/simplejson/simplejson/pull/382

Version 4.1.1 released 2026-04-24

* The ``build_wheels_py27`` CI job now also builds Python 2.7 wheels

for Windows AMD64 and Windows x86, joining the existing Py2.7

manylinux1 / manylinux2010 x86_64 wheels. This unblocks offline /

``--no-index`` installs on Py2.7-on-Windows (the original

reporter's case), which previously had no matching binary wheel on

PyPI, fell through to the sdist, and failed on the PEP 517

isolated-build step complaining that ``setuptools>=42`` was not in

the wheelhouse.

https://github.com/simplejson/simplejson/issues/377

Version 4.1.0 released 2026-04-22

* The C extension now accelerates encoding when ``indent=`` is set.

Previously the encoder fell back to the pure-Python implementation

whenever a non-None ``indent`` was passed; now the C encoder emits

the newline-plus-indent prefix, the level-aware item separator, and

the closing indent directly. A representative nested-dict workload

benchmarks about 4-5x faster end-to-end, and the ``indent=0`` and

empty-container edge cases continue to match the Python output

byte-for-byte.

* The C extension now emits PEP 678 ``exc.add_note()`` annotations on

serialization failures, matching the pure-Python encoder. A chained

error on ``{'a': [1, object(), 3]}`` produces the same three notes

(``when serializing object object``, ``when serializing list item 1``,

``when serializing dict item 'a'``) whether the speedups are loaded

or not, so the add_note assertions in ``test_errors.py`` no longer

need ``indent=2`` to force the Python path.

Version 4.0.1 released 2026-04-18

* Skip uploading Pyodide/wasm wheels to PyPI, which rejects them with

"unsupported platform tag 'pyodide_2024_0_wasm32'". The wheels are

still built in CI and preserved as workflow artifacts.

https://github.com/simplejson/simplejson/pull/375

Version 4.0.0 released 2026-04-18

* simplejson 4 requires Python 2.7 or Python 3.8+. Older Python

versions (2.5, 2.6, 3.0-3.7) are no longer supported. pip will

not install simplejson 4 on unsupported versions.

* The C extension now uses heap types and per-module state instead of

static types and global state. This is required for free-threading

support and sub-interpreter isolation. The Python-level API is

unchanged.

* Full support for Python 3.13+ free-threading (PEP 703). The C

extension is now safe to use with the GIL disabled (python3.14t):

- Converted all static types to heap types with per-module state

- Added per-object critical sections to scanner and encoder

- Added free-threading-safe dict operations for Python 3.13+

- Unified per-module state management and templated parser

https://github.com/simplejson/simplejson/pull/363

https://github.com/simplejson/simplejson/pull/364

https://github.com/simplejson/simplejson/pull/365

https://github.com/simplejson/simplejson/pull/367

https://github.com/simplejson/simplejson/pull/369

* Numerous C extension memory safety fixes:

- Fix use-after-free and leak in encoder ident handling

- Fix NULL dereferences on OOM in module init and static string init

- Fix reference leaks in dict encoder (skipkeys item, variable shadowing)

- Fix member table copy-paste, exception clobbering, missing Py_VISIT

- Fix error-as-truthy bugs in maybe_quote_bigint and is_raw_json

- Fix iterable_as_array swallowing MemoryError and KeyboardInterrupt

- Fix for_json and _asdict swallowing MemoryError, KeyboardInterrupt,

and other non-AttributeError exceptions raised by user __getattr__

https://github.com/simplejson/simplejson/pull/355

https://github.com/simplejson/simplejson/pull/356

https://github.com/simplejson/simplejson/pull/357

https://github.com/simplejson/simplejson/pull/358

https://github.com/simplejson/simplejson/pull/359

https://github.com/simplejson/simplejson/pull/360

https://github.com/simplejson/simplejson/pull/373

* C/Python parity fixes:

- Fix C scanstring off-by-one bounds checks that caused truncated

or boundary \uXXXX escapes to raise "Invalid \\uXXXX escape

sequence" instead of "Unterminated string", and report error

position at the 'u' instead of the leading backslash. The C and

Python decoders now agree on exception class, message, and

position across all tested edge cases.

- Align the Python encoder's dispatch order with the C encoder for

objects that define _asdict(). Previously a list/tuple/dict

subclass with an _asdict() method encoded as its container type

under the Python encoder and as the _asdict() return value under

the C encoder; both now check _asdict() before list/tuple/dict.

for_json() continues to outrank _asdict() in both.

- Fix C scanstring raising a plain ValueError ("end is out of

bounds") instead of JSONDecodeError for out-of-range end indices.

User code with `except JSONDecodeError:` now catches both the

C and pure-Python paths consistently.

https://github.com/simplejson/simplejson/pull/372

* C extension performance and correctness improvements:

- Add PyDict_Next fast path for unsorted exact-dict encoding,

avoiding intermediate items list and N tuple allocations

- Add indexed fast path for exact list/tuple encoding, avoiding

iterator allocation and per-item PyIter_Next overhead

- Use PyUnicodeWriter as JSON_Accu backend on Python 3.14+,

eliminating intermediate string objects and ''.join calls

- Fix integer overflow in ascii_escape output_size calculation

that could cause buffer overwrite on pathologically large strings

- Fix list encoder separator counter overflow (int to Py_ssize_t)

- Dead code cleanup (unreachable NULL checks, do-while wrappers)

https://github.com/simplejson/simplejson/pull/370

* Added Python 3.14 support and updated to cibuildwheel 3.2.1. CI now

tests free-threaded (3.14t) and debug builds with -Werror, refcount

leak detection, and GIL-disabled mode.

https://github.com/simplejson/simplejson/pull/343

* Added a ThreadSanitizer (TSan) stress test CI job. Builds a

TSan-instrumented free-threaded CPython (cached between runs) and

runs a concurrent stress test script against the C extension to

catch data races under free-threading.

https://github.com/simplejson/simplejson/pull/373

* Replace deprecated license classifiers with SPDX license expression

https://github.com/simplejson/simplejson/pull/347

* Documented RawJSON usage with examples and caveats

https://github.com/simplejson/simplejson/pull/346

* Added pyproject.toml for PEP 517 build support. setup.py is retained

for Python 2.7 wheel builds and backwards compatibility.

* Migrated build_ext import from distutils to setuptools in setup.py.

The distutils.errors imports are kept since setuptools vendors

distutils on Python 3.12+ where stdlib distutils was removed.

* CI now tests PEP 517 builds (pyproject.toml) alongside the existing

setup.py-based builds.

* Added Pyodide (wasm32) wheel builds with C speedups via cibuildwheel.

Previously Pyodide users fell back to the pure-Python wheel; now they

get the compiled C extension cross-compiled to WebAssembly. Thread

and subprocess tests are skipped on Emscripten where those APIs are

unavailable.

* Test suite now fails (instead of skipping) when C speedups are missing

during cibuildwheel runs, catching broken extension builds early.

* New ``array_hook`` parameter for ``loads()``, ``load()``, and

``JSONDecoder``. Called with each decoded JSON array (as a list),

its return value replaces the list. Analogous to ``object_hook``

for dicts. Works with both the Python decoder and C scanner.

(Matches CPython 3.15 json module.)

* Trailing comma detection: the decoder now raises ``JSONDecodeError``

with "Illegal trailing comma before end of object/array" for inputs

like ``[1,]`` and ``{"a": 1,}`` instead of generic error messages.

Both the Python decoder and C scanner are updated.

(Matches CPython 3.13+ json module.)

* ``frozendict`` encoding support: when ``frozendict`` is available

(CPython 3.15+ PEP 814), it is encoded as a JSON object just like

``dict``. No effect on older Python versions.

* Serialization errors now include ``add_note()`` context on Python

3.11+ (PEP 678), annotating exceptions with the path to the error,

e.g. "when serializing list item 1" / "when serializing dict item

'key'". Only applies to the Python encoder.

* New C fast path for ``encode_basestring`` (``ensure_ascii=False``).

Previously the non-ASCII string encoder fell back to pure Python;

now it has a C implementation matching the existing

``encode_basestring_ascii`` fast path.

https://github.com/simplejson/simplejson/issues/207

* The Python decoder now rejects non-ASCII digits (e.g. fullwidth

``\uff10``) in JSON numbers, matching the C scanner behavior.

The ``NUMBER_RE`` regex was changed from ``\d`` to ``[0-9]``.

* Removed dead single-phase init code for Python 3.3/3.4 from the

C extension (these versions are no longer supported).

Version 3.20.2 released 2025-09-24

* Disable speedups on GraalPy same as on PyPy

https://github.com/simplejson/simplejson/pull/339

Version 3.20.1 released 2025-02-14

* Do not memoize keys before they are coerced to string

https://github.com/simplejson/simplejson/pull/329

Version 3.19.3 released 2024-08-14

* Updated test & build matrix to include Python 3.13.

Dropped wheel support for Python 2.7 on macOS.

https://github.com/simplejson/simplejson/pull/326

Version 3.19.2 released 2023-10-05

* Updated test & build matrix to include Python 3.12 and use

GitHub Actions as a Trusted Publisher (OIDC)

https://github.com/simplejson/simplejson/pull/317

Version 3.19.1 released 2023-04-06

* This release contains security hardening measures based on recommendations

by a security audit sponsored by OSTIF and conducted by X41 D-Sec GmbH.

Several of these measures include changing defaults to be more strict,

by default simplejson will now only consume and produce compliant JSON,

but the flags still exist for any backwards compatibility needs.

No high priority issues were discovered, the reference count

leak is thought to be unreachable since the digits of the float are

checked before PyOS_string_to_double is called.

A link to the public version of this report will be included in a

future release of simplejson. The following fixes were implemented in

one PR: https://github.com/simplejson/simplejson/pull/313

* Fix invalid handling of unicode escape sequences in the pure Python

implementation of the decoder (SJ-PT-23-01)

* Fix missing reference count decrease if PyOS_string_to_double raises

an exception in Python 2.x; was probably unreachable (SJ-PT-23-02)

* Backport the integer string length limitation from Python 3.11 to

limit quadratic number parsing (SJ-PT-23-03)

* Fix inconsistencies with error messages between the C and Python

implementations (SJ-PT-23-100)

* Remove unused unichr import from encoder (SJ-PT-23-101)

* Remove unused namedtuple_as_object and tuple_as_array arguments from

simplejson.load (SJ-PT-23-102)

* Remove vestigial _one_shot code from iterencode (SJ-PT-23-103)

* Change default of allow_nan from True to False and add allow_nan

to decoder (SJ-PT-23-107)

Version 3.18.4 released 2023-03-14

* Test the sdist to prevent future regressions

https://github.com/simplejson/simplejson/pull/311

* Enable ppc64le wheels

https://github.com/simplejson/simplejson/pull/312

Version 3.18.3 released 2023-02-05

* Fix regression in sdist archive

https://github.com/simplejson/simplejson/pull/310

Version 3.18.2 released 2023-02-04

* Distribute a pure python wheel for Pyodide

https://github.com/simplejson/simplejson/pull/308

Version 3.18.1 released 2023-01-03

* Remove unnecessary `i` variable from encoder module namespace

https://github.com/simplejson/simplejson/pull/303

* Declare support for Python 3.11 and add wheels

https://github.com/simplejson/simplejson/pull/305

Version 3.18.0 released 2022-11-14

* Allow serialization of classes that implement for_json or _asdict by

ignoring TypeError when those methods are called

https://github.com/simplejson/simplejson/pull/302

* Raise JSONDecodeError instead of ValueError in invalid unicode escape

sequence edge case

https://github.com/simplejson/simplejson/pull/298

Version 3.17.6 released 2021-11-15

* Declare support for Python 3.10 and add wheels

https://github.com/simplejson/simplejson/pull/291

https://github.com/simplejson/simplejson/pull/292

Version 3.17.5 released 2021-08-23

* Fix the C extension module to harden is_namedtuple against looks-a-likes such

as Mocks. Also prevent dict encoding from causing an unraised SystemError when

encountering a non-Dict. Noticed by running user tests against a CPython

interpreter with C asserts enabled (COPTS += -UNDEBUG).

https://github.com/simplejson/simplejson/pull/284

Version 3.17.4 released 2021-08-19

* Upgrade cibuildwheel

https://github.com/simplejson/simplejson/pull/287

Version 3.17.3 released 2021-07-09

* Replaced Travis-CI and AppVeyor with Github Actions,

adding wheels for Python 3.9.

https://github.com/simplejson/simplejson/pull/283

Version 3.17.2 released 2020-07-16

* Added arm64 to build matrix and reintroduced

manylinux wheels

https://github.com/simplejson/simplejson/pull/264

* No more bdist_wininst builds per PEP 527

https://github.com/simplejson/simplejson/pull/260

* Minor grammatical issue fixed in README

https://github.com/simplejson/simplejson/pull/261

Version 3.17.0 released 2019-11-17

* Updated documentation to be Python 3 first, and

have removed documentation notes about version changes

that occurred more than five years ago.

https://github.com/simplejson/simplejson/pull/257

https://github.com/simplejson/simplejson/pull/254

* Update build matrix for Python 3.8

https://github.com/simplejson/simplejson/pull/255

https://github.com/simplejson/simplejson/pull/256

Version 3.16.1 released 2018-09-07

* Added examples for JSON lines use cases

https://github.com/simplejson/simplejson/pull/236

* Add wheels for more Python versions and platforms

https://github.com/simplejson/simplejson/pull/234

https://github.com/simplejson/simplejson/pull/233

https://github.com/simplejson/simplejson/pull/231

Version 3.16.0 released 2018-06-28

* Restore old behavior with regard to the type of decoded empty

strings with speedups enabled on Python 2.x

https://github.com/simplejson/simplejson/pull/225

* Add python_requires to setup.py to help pip

https://github.com/simplejson/simplejson/pull/224

* Fix CSS in docs when built locally

https://github.com/simplejson/simplejson/pull/222

Version 3.15.0 released 2018-05-12

* Clean up the C code

https://github.com/simplejson/simplejson/pull/220

* Bypass the decode() method in bytes subclasses

https://github.com/simplejson/simplejson/pull/219

* Support builds without cStringIO

https://github.com/simplejson/simplejson/pull/217

* Allow to disable serializing bytes by default in Python 3

https://github.com/simplejson/simplejson/pull/216

* Simplify the compatibility code

https://github.com/simplejson/simplejson/pull/215

* Fix tests in Python 2.5

https://github.com/simplejson/simplejson/pull/214

Version 3.14.0 released 2018-04-21

* Defer is_raw_json test (performance improvement)

https://github.com/simplejson/simplejson/pull/212

* Avoid escaping U+2028 and U+2029 without ensure_ascii

https://github.com/simplejson/simplejson/pull/211

* Fix an incorrect type test in Python 2, avoiding an unnecessary unicode copy.

https://github.com/simplejson/simplejson/pull/210

Version 3.13.2 released 2017-11-24

* Fix additional Python 2.x compilation issue on Windows

Version 3.13.1 released 2017-11-24

* Improve CI to catch speedups build regressions

* Fix speedups build regression in Python 2.x

https://github.com/simplejson/simplejson/issues/193

Version 3.13.0 released 2017-11-23

* Workarounds for NamedTemporaryFile issues with Windows for tool tests

* Make TypeError messages contain type name instead of a repr.

https://github.com/simplejson/simplejson/pull/191

* Ensure that encoding of text subtypes is consistent with or without speedups

https://github.com/simplejson/simplejson/issues/185

Version 3.12.1 released 2017-11-23

* Misc updates to build infrastructure

* Fix an assertion failure when make_encoder receives a bad encoder argument

https://github.com/simplejson/simplejson/pull/188

* Fix potential crash during GC

https://github.com/simplejson/simplejson/pull/187

* Fix a reference leak when sorting keys

https://github.com/simplejson/simplejson/pull/186

Version 3.12.0 released 2017-11-05

* Fix threaded import race condition

https://github.com/simplejson/simplejson/issues/184

* Move RawJSON implementation to simplejson.raw_json module

* Move JSONDecodeError implementation to simplejson.errors module

Version 3.11.1 released 2017-06-19

* Fix issue with item_sort_key when speedups are available, and add

auto-discovery to test suites to prevent similar regressions

https://github.com/simplejson/simplejson/issues/173

Version 3.11.0 released 2017-06-18

* docstring fix in JSONEncoder

https://github.com/simplejson/simplejson/pull/172

* Call PyObject_IsTrue() only once for the strict argument of scanner

https://github.com/simplejson/simplejson/pull/170

* Fix a crash with unencodable encoding in the encoder

https://github.com/simplejson/simplejson/pull/171

* Remove unused imports

https://github.com/simplejson/simplejson/pull/162

* Remove remnants of Python 2.4 support

https://github.com/simplejson/simplejson/pull/168

* Fix argument checking errors in _speedups.c

https://github.com/simplejson/simplejson/pull/169

* Remove the `__init__` methods in extension classes

https://github.com/simplejson/simplejson/pull/166

* Fix typo in the doc for loads

https://github.com/simplejson/simplejson/issues/161

* Add Python 3.6 to testing matrix and PyPI metadata

https://github.com/simplejson/simplejson/pull/153

https://github.com/simplejson/simplejson/pull/152

Version 3.10.0 released 2016-10-28

* Add RawJSON class to allow a faster path for already encoded JSON.

https://github.com/simplejson/simplejson/pull/143

Version 3.9.0 released 2016-10-21

* Workaround for bad behavior in string subclasses

https://github.com/simplejson/simplejson/issues/144

* Fix warnings flagged by -3

https://github.com/simplejson/simplejson/pull/146

* Update readthedocs documentation links

https://github.com/simplejson/simplejson/pull/137

* Add build status badge to README

https://github.com/simplejson/simplejson/pull/134

Version 3.8.2 released 2016-02-14

* Fix implicit cast compiler warning in _speedups.c

* simplejson is now available as wheels for OS X and Windows thanks to Travis-CI

and AppVeyor respectively! Many thanks to @aebrahim for getting this party

started.

https://github.com/simplejson/simplejson/pull/130

https://github.com/simplejson/simplejson/issues/122

Version 3.8.1 released 2015-10-27

* Fix issue with iterable_as_array and indent option

https://github.com/simplejson/simplejson/issues/128

* Fix typo in keyword argument name introduced in 3.8.0

https://github.com/simplejson/simplejson/pull/123

Version 3.8.0 released 2015-07-18

* New iterable_as_array encoder option to perform lazy serialization of

any iterable objects, without having to convert to tuple or list.

Version 3.7.3 released 2015-05-31

* Fix typo introduced in 3.7.0 (behavior should be indistinguishable)

https://github.com/simplejson/simplejson/commit/e18cc09b688ea1f3305c27616fd3cadd2adc6d31#commitcomment-11443842

Version 3.7.2 released 2015-05-22

* Do not cache Decimal class in encoder, only reference the decimal module.

This may make reload work in more common scenarios.

Version 3.7.1 released 2015-05-18

* Fix compilation with MSVC

https://github.com/simplejson/simplejson/pull/119

Version 3.7.0 released 2015-05-18

* simplejson no longer trusts custom str/repr methods for int, long, float

subclasses. These instances are now formatted as if they were exact

instances of those types.

https://github.com/simplejson/simplejson/issues/118

Version 3.6.5 released 2014-10-24

* Importing bug fix for reference leak when an error occurs during

dict encoding

https://github.com/simplejson/simplejson/issues/109

Version 3.6.4 released 2014-09-29

* Important bug fix for dump when only sort_keys is set

https://github.com/simplejson/simplejson/issues/106

Version 3.6.3 released 2014-08-18

* Documentation updates

https://github.com/simplejson/simplejson/issues/103

Version 3.6.2 released 2014-08-09

* Documentation updates

http://bugs.python.org/issue21514

Version 3.6.1 released 2014-08-09

* Documentation updates

https://github.com/simplejson/simplejson/issues/102

Version 3.6.0 released 2014-07-21

* Automatically strip any UTF-8 BOM from input to more closely

follow the latest specs

https://github.com/simplejson/simplejson/pull/101

Version 3.5.3 released 2014-06-24

* Fix lower bound checking in scan_once / raw_decode API

https://github.com/simplejson/simplejson/issues/98

Version 3.5.2 released 2014-05-22

* Fix Windows build with VS2008

https://github.com/simplejson/simplejson/pull/97

Version 3.5.1 released 2014-05-21

* Consistently reject int_as_string_bitcount settings that are not

positive integers

Version 3.5.0 released 2014-05-20

* Added int_as_string_bitcount encoder option

https://github.com/simplejson/pull/96

* Fixed potential crash when encoder created with incorrect options

Version 3.4.1 released 2014-04-30

* Fixed tests to run on Python 3.4

Version 3.4.0 released 2014-04-02

* Native setuptools support re-introduced

https://github.com/simplejson/simplejson/pull/92

Version 3.3.3 released 2014-02-14

* Improve test suite's Python 3.4 compatibility

https://github.com/simplejson/simplejson/issues/87

Version 3.3.2 released 2014-01-06

* Docstring fix for decoded string types

https://github.com/simplejson/simplejson/pull/82

Version 3.3.1 released 2013-10-05

* JSONDecodeError exceptions can now be pickled

https://github.com/simplejson/simplejson/pull/78

Version 3.3.0 released 2013-05-07

* Unpaired surrogates once again pass through the decoder, to match older

behavior and the RFC-4627 spec.

https://github.com/simplejson/simplejson/issues/62

Version 3.2.0 released 2013-05-01

* New ignore_nan kwarg in encoder that serializes out

of range floats (Infinity, -Infinity, NaN) as null for ECMA-262

compliance.

https://github.com/simplejson/simplejson/pull/63

* New for_json kwarg in encoder to make it possible to for

subclasses of dict and list to be specialized.

https://github.com/simplejson/simplejson/pull/69

Version 3.1.3 released 2013-04-06

* Updated documentation to discourage subclassing whenever possible.

default, object_hook, and object_pairs_hook provide almost all of

the functionality of subclassing.

Version 3.1.2 released 2013-03-20

* Updated documentation to reflect separators behavior when indent is

not None

https://github.com/simplejson/simplejson/issues/59

* Test suite should be compatible with debug builds of Python 2.x and 3.x

https://github.com/simplejson/simplejson/pull/65

Version 3.1.1 released 2013-02-21

* setup.py now has another workaround for Windows machines without

MSVC installed

http://bugs.python.org/issue7511

Version 3.1.0 released 2013-02-21

* Updated JSON conformance test suite

http://bugs.python.org/issue16559

* simplejson.tool tests and bugfix for Python 3.x

http://bugs.python.org/issue16549

* Improve error messages for certain kinds of truncated input

http://bugs.python.org/issue16009

* Moved JSONDecodeError to json.scanner (still available for import

from json.decoder)

* Changed scanner to use JSONDecodeError directly rather than

StopIteration to improve error messages

Version 3.0.9 released 2013-02-21

* Fix an off-by-one error in the colno property of JSONDecodeError

(when lineno == 1)

http://bugs.python.org/issue17225

Version 3.0.8 released 2013-02-19

* Fix a Python 2.x compiler warning for narrow unicode builds

https://github.com/simplejson/simplejson/issues/56

Version 3.0.7 released 2013-01-11

* NOTE: this release only changes the license.

* simplejson is now dual-licensed software, MIT or AFL v2.1. It is

also made explicit that this code is also licensed to the PSF under

a Contributor Agreement.

Version 3.0.6 released 2013-01-11

* Fix for major Python 2.x ensure_ascii=False encoding regression

introduced in simplejson 3.0.0. If you use this setting, please

upgrade immediately.

https://github.com/simplejson/simplejson/issues/50

Version 3.0.5 released 2013-01-03

* NOTE: this release only changes the tests, it is

not essential to upgrade

* Tests now run with deprecation warnings printed

* Fixed Python 3 syntax error in simplejson.tool

https://github.com/simplejson/simplejson/issues/49

* Fixed Python 3.3 deprecation warnings in test suite

https://github.com/simplejson/simplejson/issues/48

Version 3.0.4 released 2013-01-02

* MSVC compatibility for Python 3.3

https://github.com/simplejson/simplejson/pull/47

Version 3.0.3 released 2013-01-01

* Fixes for bugs introduced in 3.0.2

* Fixes for Python 2.5 compatibility

* MSVC compatibility for Python 2.x

https://github.com/simplejson/simplejson/pull/46

Version 3.0.2 released 2013-01-01

* THIS VERSION HAS BEEN REMOVED

* Missed a changeset to _speedups.c in the 3.0.1 branch cut

Version 3.0.1 released 2013-01-01

* THIS VERSION HAS BEEN REMOVED

* Add accumulator optimization to encoder, equivalent to the usage of

`_Py_Accu` in the Python 3.3 json library. Only relevant if encoding

very large JSON documents.

Version 3.0.0 released 2012-12-30

* Python 3.3 is now supported, thanks to Vinay Sajip

https://github.com/simplejson/simplejson/issues/8

* `sort_keys`/`item_sort_key` now sort on the stringified version of the

key, rather than the original object. This ensures that the sort

only compares string types and makes the behavior consistent between

Python 2.x and Python 3.x.

* Like other number types, Decimal instances used as keys are now

coerced to strings when use_decimal is True.

Version 2.6.2 released 2012-09-21

* JSONEncoderForHTML was not exported in the simplejson module

https://github.com/simplejson/simplejson/issues/41

Version 2.6.1 released 2012-07-27

* raw_decode() now skips whitespace before the object

https://github.com/simplejson/simplejson/pull/38

Version 2.6.0 released 2012-06-26

* Error messages changed to match proposal for Python 3.3.1

http://bugs.python.org/issue5067

Version 2.5.2 released 2012-05-10

* Fix for regression introduced in 2.5.1

https://github.com/simplejson/simplejson/issues/35

Version 2.5.1 released 2012-05-10

* Support for use_decimal=True in environments that use Python

sub-interpreters such as uWSGI

https://github.com/simplejson/simplejson/issues/34

Version 2.5.0 released 2012-03-29

* New item_sort_key option for encoder to allow fine grained control of sorted

output

Version 2.4.0 released 2012-03-06

* New bigint_as_string option for encoder to trade JavaScript number precision

issues for type issues.

https://github.com/simplejson/simplejson/issues/31

Version 2.3.3 released 2012-02-27

* Allow unknown numerical types for indent parameter

https://github.com/simplejson/simplejson/pull/29

Version 2.3.2 released 2011-12-30

* Fix crashing regression in speedups introduced in 2.3.1

Version 2.3.1 released 2011-12-29

* namedtuple_as_object now checks _asdict to ensure that it

is callable.

https://github.com/simplejson/simplejson/issues/26

Version 2.3.0 released 2011-12-05

* Any objects with _asdict() methods are now considered for

namedtuple_as_object.

https://github.com/simplejson/simplejson/pull/22

Version 2.2.1 released 2011-09-06

* Fix MANIFEST.in issue when building a sdist from a sdist.

https://github.com/simplejson/simplejson/issues/16

Version 2.2.0 released 2011-09-04

* Remove setuptools requirement, reverted to pure distutils

* use_decimal default for encoding (dump, dumps, JSONEncoder) is now True

* tuple encoding as JSON objects can be turned off with new

tuple_as_array=False option.

https://github.com/simplejson/simplejson/pull/6

* namedtuple (or other tuple subclasses with _asdict methods) are now

encoded as JSON objects rather than arrays by default. Can be disabled

and treated as a tuple with the new namedtuple_as_object=False option.

https://github.com/simplejson/simplejson/pull/6

* JSONDecodeError is now raised instead of ValueError when a document

ends with an opening quote and the C speedups are in use.

https://github.com/simplejson/simplejson/issues/15

* Updated documentation with information about JSONDecodeError

* Force unicode linebreak characters to be escaped (U+2028 and U+2029)

http://timelessrepo.com/json-isnt-a-javascript-subset

* Moved documentation from a git submodule to

https://simplejson.readthedocs.io/

Version 2.1.6 released 2011-05-08

* Prevent segfaults with deeply nested JSON documents

https://github.com/simplejson/simplejson/issues/11

* Fix compatibility with Python 2.5

https://github.com/simplejson/simplejson/issues/5

Version 2.1.5 released 2011-04-17

* Built sdist tarball with setuptools_git installed. Argh.

Version 2.1.4 released 2011-04-17

* Does not try to build the extension when using PyPy

* Trailing whitespace after commas no longer emitted when indent is used

* Migrated to github http://github.com/simplejson/simplejson

Version 2.1.3 released 2011-01-17

* Support the sort_keys option in C encoding speedups

http://code.google.com/p/simplejson/issues/detail?id=86

* Allow use_decimal to work with dump()

http://code.google.com/p/simplejson/issues/detail?id=87

Version 2.1.2 released 2010-11-01

* Correct wrong end when object_pairs_hook is used

http://code.google.com/p/simplejson/issues/detail?id=85

* Correct output for indent=0

http://bugs.python.org/issue10019

* Correctly raise TypeError when non-string keys are used with speedups

http://code.google.com/p/simplejson/issues/detail?id=82

* Fix the endlineno, endcolno attributes of the JSONDecodeError exception.

http://code.google.com/p/simplejson/issues/detail?id=81

Version 2.1.1 released 2010-03-31

* Change how setup.py imports ez_setup.py to try and workaround old versions

of setuptools.

http://code.google.com/p/simplejson/issues/detail?id=75

* Fix compilation on Windows platform (and other platforms with very

picky compilers)

* Corrected simplejson.__version__ and other minor doc changes.

* Do not fail speedups tests if speedups could not be built.

http://code.google.com/p/simplejson/issues/detail?id=73

Version 2.1.0 released 2010-03-10

* Decimal serialization officially supported for encoding with

use_decimal=True. For encoding this encodes Decimal objects and

for decoding it implies parse_float=Decimal

* Python 2.4 no longer supported (may still work, but no longer tested)

* Decoding performance and memory utilization enhancements

http://bugs.python.org/issue7451

* JSONEncoderForHTML class for escaping &, <, >

http://code.google.com/p/simplejson/issues/detail?id=66

* Memoization of object keys during encoding (when using speedups)

* Encoder changed to use PyIter_Next for list iteration to avoid

potential threading issues

* Encoder changed to use iteritems rather than PyDict_Next in order to

support dict subclasses that have a well defined ordering

http://bugs.python.org/issue6105

* indent encoding parameter changed to be a string rather than an integer

(integer use still supported for backwards compatibility)

http://code.google.com/p/simplejson/issues/detail?id=56

* Test suite (python setup.py test) now automatically runs with and without

speedups

http://code.google.com/p/simplejson/issues/detail?id=55

* Fixed support for older versions of easy_install (e.g. stock Mac OS X config)

http://code.google.com/p/simplejson/issues/detail?id=54

* Fixed str/unicode mismatches when using ensure_ascii=False

http://code.google.com/p/simplejson/issues/detail?id=48

* Fixed error message when parsing an array with trailing comma with speedups

http://code.google.com/p/simplejson/issues/detail?id=46

* Refactor decoder errors to raise JSONDecodeError instead of ValueError

http://code.google.com/p/simplejson/issues/detail?id=45

* New ordered_pairs_hook feature in decoder which makes it possible to

preserve key order. http://bugs.python.org/issue5381

* Fixed containerless unicode float decoding (same bug as 2.0.4, oops!)

http://code.google.com/p/simplejson/issues/detail?id=43

* Share PosInf definition between encoder and decoder

* Minor reformatting to make it easier to backport simplejson changes

to Python 2.7/3.1 json module

Version 2.0.9 released 2009-02-18

* Adds cyclic GC to the Encoder and Scanner speedups, which could've

caused uncollectible cycles in some cases when using custom parser

or encoder functions

Version 2.0.8 released 2009-02-15

* Documentation fixes

* Fixes encoding True and False as keys

* Fixes checking for True and False by identity for several parameters

Version 2.0.7 released 2009-01-04

* Documentation fixes

* C extension now always returns unicode strings when the input string is

unicode, even for empty strings

Version 2.0.6 released 2008-12-19

* Windows build fixes

Version 2.0.5 released 2008-11-23

* Fixes a segfault in the C extension when using check_circular=False and

encoding an invalid document

Version 2.0.4 released 2008-10-24

* Fixes a parsing error in the C extension when the JSON document is (only)

a floating point number. It would consume one too few characters in that

case, and claim the document invalid.

Version 2.0.3 released 2008-10-11

* Fixes reference leaks in the encoding speedups (sorry about that!)

* Fixes doctest suite for Python 2.6

* More optimizations for the decoder

Version 2.0.2 released 2008-10-06

* Fixes MSVC2003 build regression

* Fixes Python 2.4 compatibility in _speedups.c

Version 2.0.1 released 2008-09-29

* Fixes long encoding regression introduced in 2.0.0

* Fixes MinGW build regression introduced in 2.0.0

Version 2.0.0 released 2008-09-27

* optimized Python encoding path

* optimized Python decoding path

* optimized C encoding path

* optimized C decoding path

* switched to sphinx docs (nearly the same as the json module in python 2.6)

Version 1.9.3 released 2008-09-23

* Decoding is significantly faster (for our internal benchmarks)

* Pretty-printing tool changed from simplejson to simplejson.tool for better

Python 2.6 comaptibility

* Misc. bug fixes

Version 1.9 released 2008-05-03

* Rewrote test suite with unittest and doctest (no more nosetest dependency)

* Better PEP 7 and PEP 8 source compliance

* Removed simplejson.jsonfilter demo module

* simplejson.jsonfilter is no longer included

Version 1.8.1 released 2008-03-24

* Optional C extension for accelerating the decoding of JSON strings

* Command line interface for pretty-printing JSON (via python -msimplejson)

* Decoding of integers and floats is now extensible (e.g. to use Decimal) via

parse_int, parse_float options.

* Subversion and issue tracker moved to google code:

http://code.google.com/p/simplejson/

* "/" is no longer escaped, so if you're embedding JSON directly in HTML

you'll want to use .replace("/", "\\/") to prevent a close-tag attack.

Version 1.7 released 2007-03-18

* Improves encoding performance with an optional C extension to speed up

str/unicode encoding (by 10-150x or so), which yields an overall speed

boost of 2x+ (JSON is string-heavy).

* Support for encoding unicode code points outside the BMP to UTF-16

surrogate code pairs (specified by the Strings section of RFC 4627).

Version 1.6 released 2007-03-03

* Improved str support for encoding. Previous versions of simplejson

integrated strings directly into the output stream, this version ensures

they're of a particular encoding (default is UTF-8) so that the output

stream is valid.

Version 1.5 released 2007-01-18

* Better Python 2.5 compatibility

* Better Windows compatibility

* indent encoding parameter for pretty printing

* separators encoding parameter for generating optimally compact JSON

Version 1.3 released 2006-04-01

* The optional object_hook function is called upon decoding of any JSON

object literal, and its return value is used instead of the dict that

would normally be used. This can be used to efficiently implement

features such as JSON-RPC class hinting, or other custom decodings of

JSON. See the documentation for more information.

Version 1.1 released 2005-12-31

* Renamed from simple_json to simplejson to comply with PEP 8 module naming

guidelines

* Full set of documentation

* More tests

* The encoder and decoder have been extended to understand NaN, Infinity, and

-Infinity (but this can be turned off via allow_nan=False for strict JSON

compliance)

* The decoder's scanner has been fixed so that it no longer accepts invalid

JSON documents

* The decoder now reports line and column information as well as character

numbers for easier debugging

* The encoder now has a circular reference checker, which can be optionally

disabled with check_circular=False

* dump, dumps, load, loads now accept an optional cls kwarg to use an