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[BUG]: Objects created using __new__ are not registered for casting

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#6025 In pybind/pybind11;

· TheDreadedAndy opened on Mar 30, 2026

[BUG]: py::smart_holder does not preserve shared_ptr ownership across casts (weak_ptr expires unexpectedly)

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#6021 In pybind/pybind11;

· sergeyy32 opened on Mar 30, 2026

[BUG]: 3.0.2 is crashing when binding with std containers

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5993 In pybind/pybind11;

· hiphyengine opened on Feb 23, 2026

[BUG]: segfault at exit since upgrading to 3.0.x, probably due to "Make wrapped C++ functions pickleable" (https://github.com/pybind/pybind11/pull/5580)

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5991 In pybind/pybind11;

· HMRWork42 opened on Feb 20, 2026

[BUG]: std::move_constructible and pybind11::detail::is_move_constructible differ

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5983 In pybind/pybind11;

· Simon-Lopez opened on Feb 8, 2026

[BUG]: Hijacked domain is confusing

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5963 In pybind/pybind11;

· lgritz opened on Jan 18, 2026

[BUG]: Security link goes nowhere

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5962 In pybind/pybind11;

· lgritz opened on Jan 18, 2026

[BUG]: Compilation failure with MSVC 17.12 (v14.44) and C++20: '_BACKUP_ITERATOR_DEBUG_LEVEL' undeclared

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5956 In pybind/pybind11;

· loumalouomega opened on Jan 9, 2026

[BUG]: Cross compilation (x86_64-linux -> armv7l) fails with LONG_BIT related errors

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5945 In pybind/pybind11;

· doronbehar opened on Dec 24, 2025

[BUG]: CMake add_subdirectory() interference from system-installed pybind11

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5937 In pybind/pybind11;

· mheistermann opened on Dec 15, 2025

[BUG]: Compatibility issues between pybind11 and Py_LIMITED_API.

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5905 In pybind/pybind11;

· 1271653627 opened on Nov 26, 2025

[BUG]: integral caster inconsistencies

triageNew bug, unverifiedNew bug, unverified

Status: Open.

#5895 In pybind/pybind11;

· gentlegiantJGC opened on Nov 12, 2025