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Prepare new release, v0.20.0 (#4599)

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* fix: resolve parameter shadowing bug in release script changelog command

* chore: bump version to v0.20.0, regenerate lockfile, update citation

* generate v0.20.0 changelog, first round

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* a bit of copyediting, second pass

* include newly merged PR, apply suggestions from review

* Update docs/source/changelog/0.20.0-changelog.md

Co-authored-by: Francisco Manríquez Novoa <49853152+chopan050@users.noreply.github.com>

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Francisco Manríquez Novoa <49853152+chopan050@users.noreply.github.com>
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docs/source/changelog.rst
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@ -7,6 +7,7 @@ This page contains a list of changes made between releases.
.. toctree::
:maxdepth: 1
changelog/0.20.0-changelog
changelog/0.19.2-changelog
changelog/0.19.1-changelog
changelog/0.19.0-changelog

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---
short-title: v0.20.0
description: Changelog for v0.20.0
---
# v0.20.0
Date
: February 20, 2026
## What's Changed
### Breaking Changes 🚨
* Fix `ImageMobject` 3D rotation/flipping and remove resampling algorithms `lanczos` (`antialias`), `box` and `hamming` by {user}`chopan050` in {pr}`4266`
* Fix `YELLOW_C` and add `PURE_CYAN`, `PURE_MAGENTA` and `PURE_YELLOW` by {user}`chopan050` in {pr}`4562`
### Highlights 🌟
* Rewrite MathTex to make it more robust regarding splitting by {user}`henrikmidtiby` in {pr}`4515`
The MathTex implementation has been updated to make it more robust and fix a number of issues.
A beneficial side effect is that named groups in svg files can now be accessed through SVGMobject.
* Add new Animation Builder `Mobject.always` by {user}`JasonGrace2282` in {pr}`4594`
This new feature is a convenience wrapper around `add_updater` that allows adding
updaters to a mobject in an intuitive and easy-to-read way. Example usage in a scene:
```python
d = Dot()
s = Square()
d.always.next_to(s, UP)
self.add(s, d)
self.play(s.animate.to_edge(LEFT))
```
### New Features ✨
* Add a `seed` config option + `--seed` CLI option for reproducible randomness in rendered scenes by {user}`arnaud-ma` in {pr}`4532`
### Enhancements 🚀
* Enable `strict=True` for `zip()` where safe by {user}`Oll-iver` in {pr}`4547`
### Bug Fixes 🐛
* using `color` instead of `fill_color` with MathTeX for node labels by {user}`Schefflera-Arboricola` in {pr}`4501`
* fix: infinite recursion caused by accessing color of a highlighted Ta… by {user}`BHearron` in {pr}`4435`
* Prevent potential `UnboundLocalError` in `PolarPlane` by {user}`RinZ27` in {pr}`4557`
* Fixed division by 0 in `turn_animation_into_updater` by {user}`SoldierSacha` in {pr}`4567`
* Fix TOCTOU Race Conditions when creating directories by {user}`SoldierSacha` in {pr}`4587`
* Resolve more race conditions potentially happening during directory creation by {user}`SoldierSacha` in {pr}`4589`
* Fix `c2p`/`coords_to_point` method call with single flat list or 1D array input by {user}`danielalanbates` in {pr}`4596`
### Documentation 📚
* Enable rendered documentation of `RandomColorGenerator` by {user}`arnaud-ma` in {pr}`4533`
* Remove pin to Python 3.13 in installation docs by {user}`chopan050` in {pr}`4534`
* Fix broken aquabeam OpenGL link using Wayback Machine by {user}`behackl` in {pr}`4545`
* Add type annotations and docstrings in `opengl_renderer.py` by {user}`arnaud-ma` in {pr}`4537`
* docs: improve `TransformFromCopy` docstring by {user}`GoThrones` in {pr}`4597`
### Infrastructure & Build 🔨
* Install missing dependencies in release pipeline by {user}`behackl` in {pr}`4531`
### Code Quality & Refactoring 🧹
* Rework and consolidate release changelog script, add previously skipped changelog entries by {user}`behackl` in {pr}`4568`
* Remove `__future__.annotations` from required imports by {user}`JasonGrace2282` in {pr}`4571`
* Cleaned up `mypy.ini` by {user}`henrikmidtiby` in {pr}`4584`
* Add `py.typed` to declare manim as having type hints by {user}`Timmmm` in {pr}`4553`
* Fix assertion in `ImageMobjectFromCamera.interpolate_color()` by {user}`chopan050` in {pr}`4593`
* Reduce dependency on scipy - replace `scipy.special.comb` with `math.comb` by {user}`fmuenkel` in {pr}`4598`
### Type Hints 📝
* Add type annotations to `rotation.py` by {user}`fmuenkel` in {pr}`4535`
* Add type annotations to `opengl_compatibility.py` by {user}`fmuenkel` in {pr}`4585`
* Add type annotations to `image_mobject.py` by {user}`henrikmidtiby` in {pr}`4458`
* Add type annotations to `opengl_image_mobject.py` by {user}`fmuenkel` in {pr}`4536`
* Add type annotations to `point_cloud_mobject.py` by {user}`fmuenkel` in {pr}`4586`
## New Contributors
* {user}`arnaud-ma` made their first contribution in {pr}`4533`
* {user}`Schefflera-Arboricola` made their first contribution in {pr}`4501`
* {user}`BHearron` made their first contribution in {pr}`4435`
* {user}`RinZ27` made their first contribution in {pr}`4557`
* {user}`SoldierSacha` made their first contribution in {pr}`4567`
* {user}`Oll-iver` made their first contribution in {pr}`4547`
* {user}`GoThrones` made their first contribution in {pr}`4597`
* {user}`danielalanbates` made their first contribution in {pr}`4596`
**Full Changelog**: [Compare view](https://github.com/ManimCommunity/manim/compare/v0.19.2...v0.20.0)