diff --git a/LICENSE b/LICENSE
index d71d13f..5c98c50 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright 2012-present Gratipay, LLC
+Copyright 2012-present Chad Whitacre et al.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
diff --git a/docs/conf.py b/docs/conf.py
index 59671cd..2717e9c 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -25,7 +25,10 @@
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.intersphinx', 'sphinx.ext.viewcode']
+extensions = [
+    'sphinx.ext.autodoc', 'sphinx.ext.extlinks', 'sphinx.ext.intersphinx',
+    'sphinx.ext.viewcode',
+]
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
@@ -41,16 +44,13 @@
 
 # General information about the project.
 project = u'Postgres.py'
-copyright = u'2015, Gratipay, LLC and contributors'
+copyright = u'Chad Whitacre et al.'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
-#
-# The short X.Y version.
-version = '2.2'
-# The full version, including alpha/beta/rc tags.
-release = '2.2.2'
+import postgres
+release = postgres.__version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -194,7 +194,7 @@
 # (source start file, target name, title, author, documentclass [howto/manual]).
 latex_documents = [
   ('index', 'Postgrespy.tex', u'Postgres.py Documentation',
-   u'Gratipay, LLC', 'manual'),
+   u'Chad Whitacre et al.', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -224,7 +224,7 @@
 # (source start file, name, description, authors, manual section).
 man_pages = [
     ('index', 'postgrespy', u'Postgres.py Documentation',
-     [u'Gratipay, LLC'], 1)
+     [u'Chad Whitacre et al.'], 1)
 ]
 
 # If true, show URL addresses after external links.
@@ -238,7 +238,7 @@
 #  dir menu entry, description, category)
 texinfo_documents = [
   ('index', 'Postgrespy', u'Postgres.py Documentation',
-   u'Gratipay, LLC', 'Postgrespy', 'One line description of project.',
+   u'Chad Whitacre et al.', 'Postgrespy', 'One line description of project.',
    'Miscellaneous'),
 ]
 
@@ -250,3 +250,10 @@
 
 # How to display URL addresses: 'footnote', 'no', or 'inline'.
 #texinfo_show_urls = 'footnote'
+
+
+# -- Options for extensions ----------------------------------------------------
+
+extlinks = {
+    'pr': ('https://github.com/chadwhitacre/postgres.py/pull/%s', '#'),
+}
diff --git a/docs/index.rst b/docs/index.rst
index ad4993c..2aa46af 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -30,3 +30,42 @@ An Object-Relational Mapper (ORM)
 .. automodule:: postgres.orm
     :members:
     :member-order: bysource
+
+
+Changelog
+---------
+
+**3.0.0 (Oct 19, 2019)**
+
+- the :class:`ReadOnly` exception has been renamed to :class:`ReadOnlyAttribute`, and the :attr:`_read_only_attributes` attribute of the :class:`~postgres.orm.Model` class has been renamed to :attr:`attnames` (:pr:`91`)
+- the ORM has been optimized and now supports `__slots__ <https://docs.python.org/3/reference/datamodel.html#slots>`_ (:pr:`88`)
+- **BREAKING**: the :meth:`~postgres.Postgres.check_registration` method now always returns a list (:pr:`87`)
+- PostgreSQL versions older than 9.2 are no longer supported (:pr:`83`)
+- idle connections are now kept open for up to 10 minutes by default (:pr:`81`)
+- the methods :meth:`~postgres.Postgres.run`, :meth:`~postgres.Postgres.one` and :meth:`~postgres.Postgres.all` now support receiving query paramaters as keyword arguments (:pr:`79`)
+- **BREAKING**: the methods :meth:`~postgres.Postgres.run`, :meth:`~postgres.Postgres.one` and :meth:`~postgres.Postgres.all` no longer pass extra arguments to :meth:`~postgres.Postgres.get_cursor` (:pr:`79` and :pr:`67`)
+- subtransactions are now supported (:pr:`78` and :pr:`90`)
+- **BREAKING**: single-column rows aren't unpacked anymore when the `back_as` argument is provided (:pr:`77`)
+- the cursor methods now also support the `back_as` argument (:pr:`77`)
+- a new row type and cursor subclass are now available, see :class:`~postgres.cursors.SimpleRowCursor` for details (:pr:`75`)
+- the ORM now supports non-default schemas (:pr:`74`)
+- connections now also have a :meth:`get_cursor` method (:pr:`73` and :pr:`82`)
+- the values accepted by the `back_as` argument can now be customized (:pr:`72`)
+- the :meth:`~postgres.Postgres.one` and :meth:`~postgres.Postgres.all` no longer fail when a row is made up of a single column named :attr:`values` (:pr:`71`)
+- any :exc:`~psycopg2.InterfaceError` exception raised during an automatic rollback is now suppressed (:pr:`70`)
+- the :meth:`~postgres.Postgres.get_cursor` method has two new optional arguments: `autocommit` and `readonly` (:pr:`69`)
+- :class:`~postgres.Postgres` objects now have a :attr:`readonly` attribute (:pr:`69`)
+- the `url` argument is no longer required when creating a :class:`Postgres` object (:pr:`68`)
+
+**2.2.2 (Sep 12, 2018)**
+
+- the only dependency was changed from ``psycopg2 >= 2.5.0`` to ``psycopg2-binary >= 2.7.5`` (:pr:`64`)
+- the license was changed from CC0 to MIT (:pr:`62`)
+
+**2.2.1 (Oct 10, 2015)**
+
+- a bug in the URL-to-DSN conversion function was fixed (:pr:`53`)
+
+**2.2.0 (Sep 12, 2015)**
+
+- the ORM was modified to detect some schema changes (:pr:`43`)
diff --git a/postgres/__init__.py b/postgres/__init__.py
index 0c036d2..1b95d21 100644
--- a/postgres/__init__.py
+++ b/postgres/__init__.py
@@ -195,7 +195,7 @@
     psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY)
 
 
-__version__ = '2.2.2'
+__version__ = '3.0.0'
 
 
 # Exceptions
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..a02e344
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,33 @@
+# https://setuptools.readthedocs.io/en/latest/setuptools.html#configuring-setup-using-setup-cfg-files
+
+[metadata]
+name = postgres
+version = 3.0.0
+author = Chad Whitacre et al.
+author_email = chad@zetaweb.com
+url = https://github.com/chadwhitacre/postgres.py
+description = postgres is a high-value abstraction over psycopg2.
+long_description = file: README.md
+long_description_content_type = text/markdown
+license = MIT
+license_file = LICENSE
+keywords = sql postgresql psycopg2
+platforms = any
+classifiers =
+    Development Status :: 5 - Production/Stable
+    Intended Audience :: Developers
+    License :: MIT
+    Operating System :: OS Independent
+    Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Programming Language :: SQL
+    Topic :: Database :: Front-Ends
+    Topic :: Software Development :: Libraries :: Python Modules
+
+[options]
+packages = find:
+install_requires =
+    psycopg2-binary >= 2.8
+    psycopg2-pool
+setup_requires =
+    setuptools >= 39.2.0
diff --git a/setup.py b/setup.py
index 7abb98a..6068493 100644
--- a/setup.py
+++ b/setup.py
@@ -1,27 +1,3 @@
-from __future__ import absolute_import, division, print_function, unicode_literals
+from setuptools import setup
 
-from setuptools import setup, find_packages
-
-setup(
-    name='postgres',
-    author='Gratipay, LLC',
-    author_email='chad@idelic.com',
-    description="postgres is a high-value abstraction over psycopg2.",
-    long_description=open('README.md').read(),
-    long_description_content_type='text/markdown',
-    url='https://postgres-py.readthedocs.org',
-    version='2.2.2',
-    packages=find_packages(),
-    install_requires=['psycopg2-binary >= 2.8', 'psycopg2-pool'],
-    classifiers=[
-        'Development Status :: 5 - Production/Stable',
-        'Intended Audience :: Developers',
-        'License :: MIT',
-        'Operating System :: OS Independent',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: SQL',
-        'Topic :: Database :: Front-Ends',
-        'Topic :: Software Development :: Libraries :: Python Modules',
-    ],
-)
+setup()
diff --git a/tox.ini b/tox.ini
index 4abb273..ea4e606 100644
--- a/tox.ini
+++ b/tox.ini
@@ -24,5 +24,5 @@ usedevelop = true
 
 [flake8]
 ignore = E302,E303,E306,E731
-exclude = .git/, .tox/, __pycache__/, docs/, build/, dist/
+exclude = .*/, __pycache__/, docs/, build/, dist/
 max_line_length = 99