diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3e0e266..eb1aa37 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -42,7 +42,7 @@ jobs:
             # Use latest installed python3 from pyenv
             export PYENV_VERSION="$(pyenv versions | grep -Po '\b3\.\d+\.\d+' | tail -1)"
             pip install packagecore
-            packagecore -o ./dist/ ${CIRCLE_TAG#v}
+            packagecore -c tests/packagecore/packagecore.yaml -o ./dist/ ${CIRCLE_TAG#v}
       - run:
           name: "publish to GitHub"
           command: |
diff --git a/CHANGELOG b/CHANGELOG
index c555f1a..c916209 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,12 @@
+googler 4.0
+2019-11-27
+
+What's in?
+- Switch to modern UA and fix parser to handle new result format
+- Text-wrapping
+
+-------------------------------------------------------------------------------
+
 googler 3.9
 2019-05-30
 
diff --git a/README.md b/README.md
index 34950f6..98934d9 100644
--- a/README.md
+++ b/README.md
@@ -116,7 +116,7 @@ before installation.
 
 #### Release packages
 
-Packages for Arch Linux, CentOS, Debian, Fedora, openSUSE Leap and Ubuntu are available with the [latest stable release](https://github.com/jarun/googler/releases/latest).
+Packages for Arch Linux, CentOS, Debian, Fedora, openSUSE and Ubuntu are available with the [latest stable release](https://github.com/jarun/googler/releases/latest).
 
 #### From source
 
@@ -144,7 +144,7 @@ To remove `googler` and associated docs, run
 
 To install the latest stable version, run
 
-    $ sudo curl -o /usr/local/bin/googler https://raw.githubusercontent.com/jarun/googler/v3.9/googler && sudo chmod +x /usr/local/bin/googler
+    $ sudo curl -o /usr/local/bin/googler https://raw.githubusercontent.com/jarun/googler/v4.0/googler && sudo chmod +x /usr/local/bin/googler
 
 You could then let googler upgrade itself by running
 
diff --git a/googler b/googler
index 7269d77..fa0afa5 100755
--- a/googler
+++ b/googler
@@ -89,7 +89,7 @@ except ValueError:
 
 # Constants
 
-_VERSION_ = '3.9'
+_VERSION_ = '4.0'
 
 COLORMAP = {k: '\x1b[%sm' % v for k, v in {
     'a': '30', 'b': '31', 'c': '32', 'd': '33',
diff --git a/googler.1 b/googler.1
index 866a08d..2fdd23b 100644
--- a/googler.1
+++ b/googler.1
@@ -1,4 +1,4 @@
-.TH "GOOGLER" "1" "30 May 2019" "Version 3.9" "User Commands"
+.TH "GOOGLER" "1" "27 Nov 2019" "Version 4.0" "User Commands"
 .SH NAME
 googler \- Google from the command-line
 .SH SYNOPSIS
diff --git a/packagecore.yaml b/tests/packagecore/packagecore.yaml
similarity index 88%
rename from packagecore.yaml
rename to tests/packagecore/packagecore.yaml
index dccb872..a909933 100644
--- a/packagecore.yaml
+++ b/tests/packagecore/packagecore.yaml
@@ -13,14 +13,6 @@ packages:
     deps:
       - python
     container: "archlinux/base"
-  centos7.4:
-    builddeps:
-      - make
-    deps:
-      - python
-    commands:
-      pre:
-        - yum install epel-release
   centos7.5:
     builddeps:
       - make
@@ -41,6 +33,11 @@ packages:
       - make
     deps:
       - python3
+  debian10:
+    builddeps:
+      - make
+    deps:
+      - python3
   fedora25:
     builddeps:
       - make
@@ -71,11 +68,21 @@ packages:
       - make
     deps:
       - python3
+  fedora31:
+    builddeps:
+      - make
+    deps:
+      - python3
   opensuse42.3:
     builddeps:
       - make
     deps:
       - python3
+  opensuse15.0:
+    builddeps:
+      - make
+    deps:
+      - python3
   ubuntu14.04:
     builddeps:
       - make