prepare release (#2265)

* prepare release

* update release date

Author: OriolAbril

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Change Log
 
-## v0.x.x (TBD)
+## v0.16.0 (2023 Jul 13)
 
 ### New features
 - Add InferenceData<->DataTree conversion functions ([2253](https://github.com/arviz-devs/arviz/pull/2253))
@@ -14,10 +14,6 @@
 - Fixes for creating numpy object array ([2233](https://github.com/arviz-devs/arviz/pull/2233) and [2239](https://github.com/arviz-devs/arviz/pull/2239))
 - Adapt histograms generated by plot_dist to input dtype ([2247](https://github.com/arviz-devs/arviz/pull/2247))
 
-### Deprecation
-
-### Documentation
-
 ## v0.15.1 (2023 Mar 06)
 
 ### New features

arviz/__init__.py

@@ -1,6 +1,6 @@
 # pylint: disable=wildcard-import,invalid-name,wrong-import-position
 """ArviZ is a library for exploratory analysis of Bayesian models."""
-__version__ = "0.16.0.dev0"
+__version__ = "0.16.0"
 
 import logging
 import os

requirements.txt

@@ -1,6 +1,6 @@
 setuptools>=60.0.0
 matplotlib>=3.2
-numpy>=1.20.0
+numpy>=1.21.0
 scipy>=1.8.0
 packaging
 pandas>=1.3.0