pybind11

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[BUG]: `__new__` does not initialize STL containers and resulting in undefined behavior

20

### Required prerequisites - [X] Make sure you've read the [documentation](https://pybind11.readthedocs.io). Your issue may be addressed there. - [X] Search the [issue tracker](https://github.com/pybind/pybind11/issues) and [Discussions](https:/pybind/pybind11/discussions) to verify that this hasn't...

XuehaiPan

tests: run on pyodide

5

Adding WebAssembly testing on Pyodide. ## Description ## Suggested changelog entry: ```rst * Adding WASM testing. ```

henryiii

Call concat with proper namespace in cast.h

6

## Description Replaced calls to `concat` by using complete namespace `pybind11::detail::concat` in file `cast.h`. We encountered issues in our library, because the `concat` function from modernjson was erroneously used instead...

volkm

Fix MSVC MT/MD incompatibility in PYBIND11_BUILD_ABI

25

## Description The ABI is compatible between different versions of MSVC 14.* (2015 - 14.0, 2017 - 14.1, 2019 - 14.2, 2022 - 14.3). However, the internal structures are different...

isuruf

### Required prerequisites - [X] Make sure you've read the [documentation](https://pybind11.readthedocs.io). Your issue may be addressed there. - [X] Search the [issue tracker](https://github.com/pybind/pybind11/issues) and [Discussions](https:/pybind/pybind11/discussions) to verify that this hasn't...

lexxmark

### Required prerequisites - [X] Make sure you've read the [documentation](https://pybind11.readthedocs.io). Your issue may be addressed there. - [X] Search the [issue tracker](https://github.com/pybind/pybind11/issues) and [Discussions](https:/pybind/pybind11/discussions) to verify that this hasn't...

nbelakovski

Keyword argument handling performance optimization.

3

## Issue description Keyword argument handling is slower than CPython. CPython has an optimization that assumes the keyword name string objects are interned and performs pointer comparisons first instead https://github.com/python/cpython/blob/22424c02e51fab3b62cbe255d0b87d1b55b9a6c3/Python/ceval.c#L3975...

kkimdev

[BUG]: relocation R_X86_64_TPOFF32 against hidden symbol `_ZZN8pybind116handle15inc_ref_counterEmE7counter' can not be used when making a shared object

2

### Required prerequisites - [X] Make sure you've read the [documentation](https://pybind11.readthedocs.io). Your issue may be addressed there. - [X] Search the [issue tracker](https://github.com/pybind/pybind11/issues) and [Discussions](https:/pybind/pybind11/discussions) to verify that this hasn't...

crclark

[BUG] - crash on c++ exception when importing 2 pybind submodules built from different MSVC versions

14

## Issue description Update: After diving deep in the pybind11 comments inside the code (Thanks God for it!) I am rephrasing the issue. It looks like different MSVC versions that...

Nir-Az

[BUG]: Cannot reset pybind11 state to "freshly started"

2

### Required prerequisites - [X] Make sure you've read the [documentation](https://pybind11.readthedocs.io). Your issue may be addressed there. - [X] Search the [issue tracker](https://github.com/pybind/pybind11/issues) and [Discussions](https:/pybind/pybind11/discussions) to verify that this hasn't...

gsohler