diff --git a/.codecov.yml b/.codecov.yml
@@ -1,2 +1,34 @@
-fixes:
-  - ".*/site-packages/::src/"
+# codecov can find this file anywhere in the repo, so we don't need to clutter
+# the root folder.
+#comment: false
+
+codecov:
+  notify:
+    require_ci_to_pass: no
+
+coverage:
+  status:
+    patch:
+      default:
+        target: '70'
+        if_no_uploads: error
+        if_not_found: success
+        if_ci_failed: failure
+    project:
+      default: false
+      library:
+        target: auto
+        if_no_uploads: error
+        if_not_found: success
+        if_ci_failed: error
+        paths: '!*/tests/.*'
+
+      tests:
+        target: 97.9%
+        paths: '*/tests/.*'
+        if_not_found: success
+
+flags:
+  tests:
+    paths:
+      - tests/
diff --git a/.coveragerc b/.coveragerc
@@ -1,22 +1,13 @@
-# Configuration of the coverage.py tool for reporting test coverage.
-
-[report]
-# RE patterns for lines to be excluded from consideration.
-exclude_lines =
-    #  Have to re-enable the standard pragma
-    pragma: no cover
-    #  Don't complain if tests don't hit defensive assertion code:
-    raise AssertionError
-    raise NotImplementedError
-    ^[ ]*assert False
-
-    #  Don't complain if non-runnable code isn't run:
-    ^[ ]*@unittest.skip\b
-    ^[ ]{4}unittest.main()
-    if __name__ == .__main__.:
-
-
 [run]
+source =
+    diffpy.pdfgui
+[report]
 omit =
-    #  exclude debug.py from codecov report
-    */tests/debug.py
+    */python?.?/*
+    */site-packages/nose/*
+    # ignore _version.py and versioneer.py
+    .*version.*
+    *_version.py
+
+exclude_lines =
+    if __name__ == '__main__':
diff --git a/.gitattributes b/.gitattributes
@@ -1,7 +1 @@
-/.gitattributes  export-ignore
-/.gitignore  export-ignore
-/.travis.yml  export-ignore
-/conda-recipe/  export-ignore
-/devutils  export-ignore
-.gitarchive.cfg  export-subst
-*.bat  text eol=crlf
+diffpy.pdfgui/_version.py export-subst
diff --git a/.gitignore b/.gitignore
@@ -1,44 +1,99 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
 *.py[cod]
+*$py.class
 
 # C extensions
 *.so
 
-# Packages
-*.egg
-*.egg-info
-dist
-build
-eggs
-parts
-bin
-var
-sdist
-temp
-develop-eggs
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+venv/
+*.egg-info/
 .installed.cfg
-lib
-lib64
-tags
+*.egg
+bin/
+temp/
+tags/
 errors.err
-.idea
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
 
 # Installer logs
 pip-log.txt
+pip-delete-this-directory.txt
 MANIFEST
 
 # Unit test / coverage reports
+htmlcov/
+.tox/
 .coverage
-.tox
+.coverage.*
+.cache
 nosetests.xml
+coverage.xml
+*,cover
+.hypothesis/
 
 # Translations
 *.mo
+*.pot
 
 # Mr Developer
 .mr.developer.cfg
 .project
 .pydevproject
 
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/build/
+docs/source/generated/
+
+# pytest
+.pytest_cache/
+
+# PyBuilder
+target/
+
+# Editor files
+# mac
+.DS_Store
+*~
+
+# vim
+*.swp
+*.swo
+
+# pycharm
+.idea/
+
+# VSCode
+.vscode/
+
+# Ipython Notebook
+.ipynb_checkpoints
+
 # version information
 setup.cfg
 /src/diffpy/*/version.cfg
+
+# Rever
+rever/
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -1,6 +1,6 @@
-=========================
-Diffpy.pdfgui Change Log
-=========================
+=============
+Release Notes
+=============
 
 .. current developments