[AstroPy] SunPy 1.0 Released!

[stuart at cadair.com]

The SunPy project is happy to announce the release of SunPy 1.0.0!

This release has been in development for 14 months, and is a large 
change from the 0.x series of SunPy releases with a lot of old 
functionality removed and some exciting new features.

The major highlights of this release are:

A complete transition of the whole code base to use Astropy Time, which 
was implemented by Vishnunarayan K I as part of Google Summer of Code 
2018. A rewrite of how all the clients in sunpy.net download files from 
the internet. This means vastly improved progress bars, skipping 
downloads if files are present, and better visibility and retrying of 
download errors. A rewrite of the differential rotation and image 
warping code to correctly account for observer location using the 
Astropy coordinate functionality. Removal of many deprecated functions 
and submodules; we have used the 1.0 release as a chance to clean out 
SunPy reducing the number of lines of Python code in the project by 
almost 3,000! The first release of SunPy to be Python 3 only, requiring 
Python 3.6+.
See What's New in SunPy 1.0 
<https://docs.sunpy.org/en/stable/whatsnew/1.0.html> for more details 
and the Full Changelog 
<https://docs.sunpy.org/en/stable/whatsnew/changelog.html> for the full 
list of over 150 changes in SunPy 1.0.

This release includes many breaking changes and may require your code 
to be updated to support it. We hope you see the value in having the 
extra features these changes have enabled and a code base that is 
easier to maintain. We will be continuing to release bug fixes to the 
0.9.z series until the end of 2019. We hope this gives you enough time 
to update your code and start enjoying all the improvements in SunPy 
1.0.

If you use conda, you can update to this release by running:

$ conda install -c conda-forge sunpy
or, if you use pip, by running:

$ pip install -U sunpy
If you haven't already installed SunPy we recommend you follow our 
Installation Guide 
<https://docs.sunpy.org/en/stable/guide/installation/index.html#installation>.

<>By the numbers
This release of SunPy contains 1913 commits in 332 merged pull requests 
closing 582 issues from 46 people, 25 of which are first time 
contributors to SunPy.

The people who have contributed to the code for this release are:

Abhigyan Bose * Airmansmith97 * Albert Y. Shih Andre Chicrala * Andrew 
Hill * Andrew Inglis Andrew Leonard Arthur Eigenbrot * Bernhard M. 
Wiedemann * Brandon Stone * Brigitta Sipocz Daniel D'Avella Daniel Ryan 
David Pérez-Suárez David Stansby Deepankar Sharma * Emmanuel Arias * 
Harsh Mathur * Jack Ireland Jacob * Jai Ram Rideout * Larry Manley 
Laura Hayes * Manas Mangaonkar * Matthew Mendero * Md Akramul Haque * 
Michael S Kirk Mickaël Schoentgen * Monica Bobra * Nabil Freij 
Naman9639 * Prateek Chanda Punyaslok Pattnaik Reid Gomillion * Sarthak 
Jain * Shane Maloney Shresth Verma Sourav Ghosh * Steven Christe Stuart 
Mumford Vishnunarayan K I. Will Barnes Yash Jain Yash Krishan * Yash 
Sharma * jamescalixto *
Where a * indicates their first contribution to SunPy.

Happy Pythoning,

Stuart


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