diff --git a/.emacs b/.emacs
index 159e4ab..d49c73c 100644
--- a/.emacs
+++ b/.emacs
@@ -9,14 +9,14 @@
 ;;   /  /:/  ___   ___ /  /::\   /  /:/ /:/_   __|__|:|\:\   /  /:/~/::\   /  /:/  ___   /  /:/ /::\
 ;;  /__/:/  /  /\ /__/\  /:/\:\ /__/:/ /:/ /\ /__/::::| \:\ /__/:/ /:/\:\ /__/:/  /  /\ /__/:/ /:/\:\
 ;;  \  \:\ /  /:/ \  \:\/:/__\/ \  \:\/:/ /:/ \  \:\~~\__\/ \  \:\/:/__\/ \  \:\ /  /:/ \  \:\/:/~/:/
-;;   \  \:\  /:/   \  \::/       \  \::/ /:/   \  \:\        \  \::/       \  \:\  /:/   \  \0.1 /:/
+;;   \  \:\  /:/   \  \::/       \  \::/ /:/   \  \:\        \  \::/       \  \:\  /:/   \  \1.0 /:/
 ;;    \  \:\/:/     \  \:\        \  \:\/:/     \  \:\        \  \:\        \  \:\/:/     \__\/ /:/
 ;;     \  \::/       \  \:\        \  \::/       \  \:\        \  \:\        \  \::/        /__/:/
 ;;      \__\/         \__\/         \__\/         \__\/         \__\/         \__\/         \__\/
 ;;
 ;; ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
 ;;
-;; Chemacs - Emacs Profile Switcher v0.1
+;; Chemacs - Emacs Profile Switcher
 ;;
 ;; INSTALLATION
 ;;
@@ -44,6 +44,7 @@
 ;; (package-initialize)
 
 ;;; Code:
+(defvar chemacs-version "1.0")
 (defvar chemacs-profiles-path "~/.emacs-profiles.el")
 (defvar chemacs-default-profile-path "~/.emacs-profile")
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..718143f
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,36 @@
+# 1.0 (2020-10-01)
+
+- Only load `custom-file` when it is different from `init-file` (prevent double loading of `init-file`)
+- Fixes to the install script for OS X
+- Documentation fixes
+- Introduce `chemacs-version` variable
+- start keeping a CHANGELOG
+
+# 0.6 (2020-02-23 / 71e30878)
+
+- NixOS support in installation script
+- Add Powershell installation script
+
+# 0.5 (2020-01-14 / 4c279476)
+
+- First class support for straight.el
+- Documentation fixes
+
+# 0.4 (2018-10-01 / 68382d50)
+
+- Support GNU style `--with-profile=profilename` (so with equal sign)
+
+# 0.3 (2018-09-30 / 1140501d)
+
+- Allow selection of default profile using `~/.emacs-profile`
+
+# 0.2 (2018-06-06 / 1f5601a9)
+
+- Add installer script
+- Improve documentation
+- Improve support for older Emacsen
+- Document how to use with Doom
+
+# 0.1 (2018-05-18 / 8500636a)
+
+- Initial release