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Update changelog #459

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Apr 23, 2024
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Update changelog #459

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Update changelog
Saransh-cpp Apr 23, 2024
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Update changelog.md
Saransh-cpp Apr 23, 2024
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24 changes: 24 additions & 0 deletions docs/changelog.md
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# Changelog

## Version 1.4

### Version 1.4.0

#### Features

- feat: allow coord values in to\_<coord_names> methods [#446][]
- feat: a sympy backend [#442][]

#### Bug fixes

- fix: call the square implementation for power 2 on object vectors [#444][]
- fix: use negfactor in negfactor scale test [#456][]

#### Maintenance

- chore: test on numpy 2.0 [#451][]

[#446]: https://github.com/scikit-hep/vector/pull/446
[#442]: https://github.com/scikit-hep/vector/pull/442
[#444]: https://github.com/scikit-hep/vector/pull/444
[#456]: https://github.com/scikit-hep/vector/pull/456
[#451]: https://github.com/scikit-hep/vector/pull/451

## Version 1.3

### Version 1.3.1
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2 changes: 1 addition & 1 deletion docs/usage/intro.ipynb
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"source": [
"### SymPy vectors\n",
"\n",
"> Note: In order to allow SymPy simplifications to work effectively, operations on SymPy vectors are a 100% correct only if the vectors are time-like, that is, they lie in the positive time-like cone (`t**2 > x**2 + y**2 + z**2`). Operations on other vectors might output wrong results.\n",
"> **Note:** Operations on SymPy vectors are only 100% compatible with numeric vectors (Python, NumPy, and Awkward backends) if the vectors are positive time-like, that is, if `t**2 > x**2 + y**2 + z**2`. The space-like and negative time-like cases have different sign conventions.\n",
"\n",
"You can directly use the `VectorSympy` and `MomentumSympy` classes to construct object type vectors:"
]
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