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twiecki merged 2 commits into from
Jan 22, 2021
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Mention removal of ArviZ-delegated plotting and stats in release notes #4432

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Mention removal of ArviZ-delegated plotting and stats
michaelosthege Jan 22, 2021
f65111c
Mention most important breaking changes first
michaelosthege Jan 22, 2021
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1 change: 1 addition & 0 deletions RELEASE-NOTES.md
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Expand Up @@ -14,6 +14,7 @@ This release breaks some APIs w.r.t. `3.10.0`. It also brings some dreadfully aw
- In `sample_prior_predictive` the `vars` kwarg was removed in favor of `var_names` (see [#4327](https://github.com/pymc-devs/pymc3/pull/4327)).
- Removed `theanof.set_theano_config` because it illegally changed Theano's internal state (see [#4329](https://github.com/pymc-devs/pymc3/pull/4329)).
- We now depend on `Theano-PyMC` version `1.1.0` exactly (see [#4405](https://github.com/pymc-devs/pymc3/pull/4405)). Major refactorings were done in `Theano-PyMC` 1.1.0. If you implement custom `Op`s or interact with Theano in any way yourself, make sure to read the [Theano-PyMC 1.1.0 release notes](https://github.com/pymc-devs/Theano-PyMC/releases/tag/rel-1.1.0).
- Many plotting and diagnostic functions that were just aliasing ArviZ functions were removed (see [4397](https://github.com/pymc-devs/pymc3/pull/4397/files#)). This includes `pm.summary`, `pm.traceplot`, `pm.ess` and many more!
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@twiecki twiecki Jan 22, 2021

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I would move this as the second (or even first) point because it's probably the most important one.


### New Features
- Option to set `check_bounds=False` when instantiating `pymc3.Model()`. This turns off bounds checks that ensure that input parameters of distributions are valid. For correctly specified models, this is unneccessary as all parameters get automatically transformed so that all values are valid. Turning this off should lead to faster sampling (see [#4377](https://github.com/pymc-devs/pymc3/pull/4377)).
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