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symfony/polyfill-deepclone

v1.43.115M downloads/mosymfony/polyfill-deepclone ↗New releases in your daily digest, changelog included.

Symfony polyfill for the deepclone extension

Last release today
06 Oct 2026
Ships fairly regularly
a new release about every 2 months
Nearly every release is documented
notes for 10 of 10 stable releases
Nothing withdrawn
no release was ever pulled
6 months old
10 releases · first in 2026

Release timeline

10 releases since 2026

2026

20262026

One column per month.

Releases

v1.43.16 Oct 2026
Changelog ( v1.43.0...v1.43.1 )
Changelog (v1.43.0...v1.43.1)

bug #715 Separate the storage of ArrayObject and ArrayIterator from the payload (@nicolas-grekas)
Open source →
v1.43.030 Sept 2026
Changelog ( v1.42.0...v1.43.0 )
Changelog (v1.42.0...v1.43.0)

bug #713 Resolve mangled keys like the extension in deepclone_hydrate() (@nicolas-grekas)

bug #712 Fix issues found by differential fuzzing (@nicolas-grekas)

bug #709 Fix creating DOMNameSpaceNode, ImagickPixel and intl objects (@nicolas-grekas)

bug #701 Fix cloning DatePeriod on PHP 8.1 (@nicolas-grekas)

bug #707 Fix code run by deepclone_to_array() reading the markers of hard references (@nicolas-grekas)

bug #706 Fix detecting anonymous closures on PHP 8.1 (@nicolas-grekas)

bug #705 Fix restoring the severity of ErrorException (@nicolas-grekas)

bug #704 Throw the extension's errors for malformed deepclone_from_array() payloads (@nicolas-grekas)

bug #700 Fix restoring objects held by Random\Randomizer and HashContext (@nicolas-grekas)

bug #708 Reject more internal classes that keep their state out of their properties (@nicolas-grekas)

bug #703 Reject and create classes like the extension in deepclone_from_array() and deepclone_hydrate() (@nicolas-grekas)

bug #699 Fix detecting classes that refuse serialization (@nicolas-grekas)

bug #702 Align payloads and warnings with serialize() and the extension (@nicolas-grekas)

bug #698 Resolve the names returned by __sleep() like serialize() (@nicolas-grekas)

minor #697 Speed up deepclone_to_array() on large object graphs (@nicolas-grekas)

bug #696 Fix cloning objects whose property defaults hold closures (@nicolas-grekas)

bug #687 Write hooked properties raw in deepclone_from_array() (@nicolas-grekas)

bug #674 Preserve PHP references like unserialize(serialize()) does (@nicolas-grekas)

bug #673 Initialize lazy objects in deepclone_to_array() (@nicolas-grekas)

v1.42.07 Aug 2026

Changelog ( v1.40.0...v1.42.0 )

Changelog (v1.40.0...v1.42.0)

minor #644 Align tests with PHP 8.6 changes to ext/tidy and ext/intl (@nicolas-grekas)
bug #643 Hydrate mangled keys through the grouped path even when they resolve to the object's own scope (@nikophil)

Open source →

v1.40.012 Jun 2026

Changelog ( v1.39.0...v1.40.0 )

Changelog (v1.39.0...v1.40.0)

bug #635 Suggest the extension when refusing a named callable, and decode its global-function references (@nicolas-grekas)
feature #634 Gate closures over named callables behind an allow_named_closures option (@nicolas-grekas)

Open source →

v1.39.010 Jun 2026

Changelog ( v1.38.2...v1.39.0 )

Changelog (v1.38.2...v1.39.0)

feature #630 Support closures declared in constant expressions (@nicolas-grekas)
bug #632 Fix round-tripping short-lived Random\Randomizer instances on PHP 8.2 (@nicolas-grekas)
bug #631 Reject from_array payloads that would build an uninitialized object (@nicolas-grekas)

Open source →

v1.38.28 Jun 2026

Changelog ( v1.37.0...v1.38.2 )

Changelog (v1.37.0...v1.38.2)

bug #629 Fix round-tripping objects whose __serialize() nests another object (@nicolas-grekas)
bug #628 Fix round-tripping and hydrating BcMath\Number (@nicolas-grekas)
bug #627 Reject malformed deepclone_from_array() input without warnings (@nicolas-grekas)
bug #626 Fix cloning objects with numeric property names (@nicolas-grekas)

Open source →

v1.37.026 Apr 2026

Changelog ( v1.36.0...v1.37.0 )

Changelog (v1.36.0...v1.37.0)

bug #584 Drop SPL "\0" special key from deepclone_hydrate() (@nicolas-grekas)
bug #577 Cap IS_LONG objectMeta count at 1M (@nicolas-grekas)
feature #576 Drop scoped mode — mangled-only is now the only shape (@nicolas-grekas)
feature #574 Add DEEPCLONE_HYDRATE_PRESERVE_REFS flag + hot-path perf (@nicolas-grekas)

Open source →

v1.36.015 Apr 2026

Changelog ( v1.35.0...v1.36.0 )

Changelog (v1.35.0...v1.36.0)

feature #573 Mirror ext v0.3.0: $flags parameter + forgiving-hydrate behaviors (@nicolas-grekas)
bug #572 Fix PHP warning for __sleep()-listed uninitialized declared properties (@nicolas-grekas)

Open source →

v1.35.014 Apr 2026

Changelog ( v1.34.0...v1.35.0 )

Changelog (v1.34.0...v1.35.0)

bug #571 Fix cache poisoning causing spurious NotInstantiableException (@nicolas-grekas)
feature #568 Add deepclone_hydrate() polyfill (@nicolas-grekas)

Open source →

v1.34.010 Apr 2026

Changelog ( v1.33.0...v1.34.0 )

Changelog (v1.33.0...v1.34.0)

feature #561 Add polyfill for symfony/php-ext-deepclone (@nicolas-grekas, @GromNaN)

Open source →

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