Dvc

1) [Introduced `dvc diff` command. Kudos django-kz :medal_sports: !](https://github.com/iterative/dvc/pull/1778)
2) [Fixed bug in stage file generation for external ouputs;](https://github.com/iterative/dvc/pull/1837)
3) [Fixed bug in dynamic version generation for our pip packages;](https://github.com/iterative/dvc/issues/1824)
4) [Refactored dvc logging to be more pythonic;](https://github.com/iterative/dvc/issues/1753)
5) [Refactored log capturing in our tests to use pytest's caplog;](https://github.com/iterative/dvc/issues/1797)
6) [Added `python_requires` and version classifiers to our pip package; Kudos hugovk :medal_sports: !](https://github.com/iterative/dvc/pull/1845)
7) [Dropped support for Python 3.4 due to it reaching EOL; Kudos hugovk :medal_sports: !](https://github.com/iterative/dvc/pull/1847)
8) [Fixed bug in our daemon worker that was spawning processes recursively;](https://github.com/iterative/dvc/issues/1803)

Welcome new contributors django-kz and hugovk ! :tada: :tada: :tada:

1) [Fix the bug with improper stage md5 calculation caused by not excluded `persist` field](https://github.com/iterative/dvc/issues/1828);

1) [Fix bug in binary dvc packages, where google-cloud-storage wasn't included](https://github.com/iterative/dvc/issues/1697);

1) [`dvc metrics show` now nicely formats multiline metrics files like tsv/htsv, csv/hcsv, json](https://github.com/iterative/dvc/issues/1716); Kudos mroutis :medal_sports:
2) [`dvc remote add` no longer silently overwrites existing sections](https://github.com/iterative/dvc/issues/1760);
3) [Use a workaround to bypass SIP protection on osx, when accessing libSystem](https://github.com/iterative/dvc/issues/1515);
4) [Don't try to create existing container on azure](https://github.com/iterative/dvc/issues/1811); Kudos AmitAronovitch :medal_sports:
5) Dvc repository now uses read-only http remote for our images instead of s3;
6) Fix bug in `dvc status` where an error is raised if cache is not present locally nor on the remote;
7) [Fix progress bar on `dvc pull`](https://github.com/iterative/dvc/issues/1807); Kudos pared :medal_sports:
8) [Automatically detect metrics file type by extension](https://github.com/iterative/dvc/issues/1553); Kudos cand126 :medal_sports:

Welcome new contributor AmitAronovitch ! :tada:

1) [Fix color codes on Windows](https://github.com/iterative/dvc/issues/1698);
2) Migrated from nose to pytest;
3) [Started using progress bar for checkout instead of verbose info messages](https://github.com/iterative/dvc/issues/1643);
4) [Refactored brancher](https://github.com/iterative/dvc/pull/1709);
5) [Updated *sh completion](https://github.com/iterative/dvc/issues/1732);
6) [Increased verbosity of dvc info messages](https://github.com/iterative/dvc/issues/1735) Kudos PeterFogh 🏅 ;
7) [Added support for `dvc pipeline show --tree`](https://github.com/iterative/dvc.org/issues/219) Kudos puhoshville 🏅 ;
8) [Fixed not working metrics show in `dvc repro -m`](https://github.com/iterative/dvc/issues/1740);
9) [Fixed link removal bug in `dvc checkout/pull`](https://github.com/iterative/dvc/issues/1788);
10) [Improved `dvc cmd --help` by including links to documentation](https://github.com/iterative/dvc/pull/1767) Kudos J0 🏅 ;

Welcome new contributors PeterFogh J0 puhoshville ! 🚀

1) [Fix bug where wdir was not converted to unixpath when saved to a dvc file](https://github.com/iterative/dvc/issues/1721);