diff --git a/acme/setup.py b/acme/setup.py
index baed93c65..5f220c406 100644
--- a/acme/setup.py
+++ b/acme/setup.py
@@ -3,7 +3,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'cryptography>=2.1.4',
diff --git a/certbot-apache/setup.py b/certbot-apache/setup.py
index 0b2271594..d22914f74 100644
--- a/certbot-apache/setup.py
+++ b/certbot-apache/setup.py
@@ -1,7 +1,7 @@
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     # We specify the minimum acme and certbot version as the current plugin
diff --git a/certbot-compatibility-test/setup.py b/certbot-compatibility-test/setup.py
index 34907413f..9d7e27a16 100644
--- a/certbot-compatibility-test/setup.py
+++ b/certbot-compatibility-test/setup.py
@@ -1,7 +1,7 @@
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'certbot',
diff --git a/certbot-dns-cloudflare/setup.py b/certbot-dns-cloudflare/setup.py
index b82b114ac..390dec72a 100644
--- a/certbot-dns-cloudflare/setup.py
+++ b/certbot-dns-cloudflare/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'cloudflare>=1.5.1',
diff --git a/certbot-dns-cloudxns/setup.py b/certbot-dns-cloudxns/setup.py
index 3e218809b..264434212 100644
--- a/certbot-dns-cloudxns/setup.py
+++ b/certbot-dns-cloudxns/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-digitalocean/setup.py b/certbot-dns-digitalocean/setup.py
index 1eb3a1c23..1a9d389ce 100644
--- a/certbot-dns-digitalocean/setup.py
+++ b/certbot-dns-digitalocean/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'python-digitalocean>=1.11', # 1.15.0 or newer is recommended for TTL support
diff --git a/certbot-dns-dnsimple/setup.py b/certbot-dns-dnsimple/setup.py
index ce5c1c3d6..baf5b8275 100644
--- a/certbot-dns-dnsimple/setup.py
+++ b/certbot-dns-dnsimple/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     # This version of lexicon is required to address the problem described in
diff --git a/certbot-dns-dnsmadeeasy/setup.py b/certbot-dns-dnsmadeeasy/setup.py
index 70ae9f085..f5bff8642 100644
--- a/certbot-dns-dnsmadeeasy/setup.py
+++ b/certbot-dns-dnsmadeeasy/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-gehirn/setup.py b/certbot-dns-gehirn/setup.py
index 67b8bb82a..2597a991e 100644
--- a/certbot-dns-gehirn/setup.py
+++ b/certbot-dns-gehirn/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-google/setup.py b/certbot-dns-google/setup.py
index da6cdf15b..379025b39 100644
--- a/certbot-dns-google/setup.py
+++ b/certbot-dns-google/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'google-api-python-client>=1.5.5',
diff --git a/certbot-dns-linode/setup.py b/certbot-dns-linode/setup.py
index e9db3c3ed..3270527b9 100644
--- a/certbot-dns-linode/setup.py
+++ b/certbot-dns-linode/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-luadns/setup.py b/certbot-dns-luadns/setup.py
index f96bbca07..6900465ab 100644
--- a/certbot-dns-luadns/setup.py
+++ b/certbot-dns-luadns/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-nsone/setup.py b/certbot-dns-nsone/setup.py
index f4a2e9944..90ca2013f 100644
--- a/certbot-dns-nsone/setup.py
+++ b/certbot-dns-nsone/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-ovh/setup.py b/certbot-dns-ovh/setup.py
index 6219b704a..772595959 100644
--- a/certbot-dns-ovh/setup.py
+++ b/certbot-dns-ovh/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-dns-rfc2136/setup.py b/certbot-dns-rfc2136/setup.py
index 42db5cad3..8ae2e2557 100644
--- a/certbot-dns-rfc2136/setup.py
+++ b/certbot-dns-rfc2136/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dnspython',
diff --git a/certbot-dns-route53/setup.py b/certbot-dns-route53/setup.py
index 610aa3bb7..c16af1d65 100644
--- a/certbot-dns-route53/setup.py
+++ b/certbot-dns-route53/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'boto3',
diff --git a/certbot-dns-sakuracloud/setup.py b/certbot-dns-sakuracloud/setup.py
index b6e357e80..34d3028bb 100644
--- a/certbot-dns-sakuracloud/setup.py
+++ b/certbot-dns-sakuracloud/setup.py
@@ -4,7 +4,7 @@ import sys
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     'dns-lexicon>=3.2.1',
diff --git a/certbot-nginx/setup.py b/certbot-nginx/setup.py
index b4bdaef58..8931e3c61 100644
--- a/certbot-nginx/setup.py
+++ b/certbot-nginx/setup.py
@@ -1,7 +1,7 @@
 from setuptools import find_packages
 from setuptools import setup
 
-version = '1.19.0.dev0'
+version = '1.20.0.dev0'
 
 install_requires = [
     # We specify the minimum acme and certbot version as the current plugin
diff --git a/certbot/CHANGELOG.md b/certbot/CHANGELOG.md
index 1ad4a2076..fb2348bd1 100644
--- a/certbot/CHANGELOG.md
+++ b/certbot/CHANGELOG.md
@@ -2,7 +2,23 @@
 
 Certbot adheres to [Semantic Versioning](https://semver.org/).
 
-## 1.19.0 - master
+## 1.20.0 - master
+
+### Added
+
+*
+
+### Changed
+
+*
+
+### Fixed
+
+*
+
+More details about these changes can be found on our GitHub repo.
+
+## 1.19.0 - 2021-09-07
 
 ### Added
 
diff --git a/certbot/certbot/__init__.py b/certbot/certbot/__init__.py
index f3b155f77..750ff258d 100644
--- a/certbot/certbot/__init__.py
+++ b/certbot/certbot/__init__.py
@@ -1,3 +1,3 @@
 """Certbot client."""
 # version number like 1.2.3a0, must have at least 2 parts, like 1.2
-__version__ = '1.19.0.dev0'
+__version__ = '1.20.0.dev0'
diff --git a/certbot/docs/cli-help.txt b/certbot/docs/cli-help.txt
index 33f7b4253..c43b34f5c 100644
--- a/certbot/docs/cli-help.txt
+++ b/certbot/docs/cli-help.txt
@@ -119,7 +119,7 @@ optional arguments:
                         case, and to know when to deprecate support for past
                         Python versions and flags. If you wish to hide this
                         information from the Let's Encrypt server, set this to
-                        "". (default: CertbotACMEClient/1.18.0 (certbot;
+                        "". (default: CertbotACMEClient/1.19.0 (certbot;
                         OS_NAME OS_VERSION) Authenticator/XXX Installer/YYY
                         (SUBCOMMAND; flags: FLAGS) Py/major.minor.patchlevel).
                         The flags encoded in the user agent are: --duplicate,