diff --git a/README.md b/README.md
index 1c110fe..d113906 100644
--- a/README.md
+++ b/README.md
@@ -1,21 +1,21 @@
 **[API docs][]** | **[CHANGELOG][]** | [other Clojure libs][] | [Twitter][] | [contact/contrib](#contact--contributing) | current [Break Version][]:
 
 ```clojure
-[com.taoensso/timbre "3.4.0"]       ; Stable
-[com.taoensso/timbre "4.0.0-beta4"] ; BREAKING, please see CHANGELOG for details
+[com.taoensso/timbre "3.4.0"]     ; Stable
+[com.taoensso/timbre "4.0.0-RC1"] ; BREAKING, please see CHANGELOG for details
 ```
 
 # Timbre, a (sane) Clojure/Script logging & profiling library
 
 Java logging is a tragic comedy of crazy, unnecessary complexity that buys you _nothing_. It can be maddeningly, unnecessarily hard to get even the simplest logging working. We can do **so** much better with Clojure/Script.
 
-Timbre brings functional, Clojure-y goodness to all your logging needs. It's fast, deeply flexible, and easy to configure. **No XML**!
+Timbre brings functional, Clojure-y goodness to all your logging needs. It's fast, deeply flexible, and easy to configure. **No XML**, **works out-the-box**!
 
 ## What's in the box™?
   * Full **Clojure** + **ClojureScript** support (v4+)
-  * No XML or properties files. **One config map**, and you're set
+  * No XML or properties files. **A single, simple config map**, and you're set
   * Deeply flexible **fn appender model** with **middleware**
-  * **Fantastic performance** at any scale
+  * **Great performance** at any scale
   * Filter logging by levels and **namespace whitelist/blacklist patterns**
   * **Zero overhead** with **complete Clj+Cljs elision** for compile-time level/ns filters
   * Useful built-in appenders for **out-the-box** Clj+Cljs logging
@@ -36,7 +36,7 @@ Timbre brings functional, Clojure-y goodness to all your logging needs. It's fas
 Add the necessary dependency to your [Leiningen][] `project.clj` and use the supplied ns-import helper:
 
 ```clojure
-[com.taoensso/timbre "4.0.0-beta4"] ; Add to your project.clj :dependencies
+[com.taoensso/timbre "4.0.0-RC1"] ; Add to your project.clj :dependencies
 
 (ns my-clj-ns ; Clj ns => use `:refer`
   (:require
diff --git a/project.clj b/project.clj
index 922e708..152db9a 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject com.taoensso/timbre "4.0.0-beta4"
+(defproject com.taoensso/timbre "4.0.0-RC1"
   :author "Peter Taoussanis <https://www.taoensso.com>"
   :description "Clojure/Script logging & profiling library"
   :url "https://github.com/ptaoussanis/timbre"
@@ -12,14 +12,14 @@
 
   :dependencies
   [[org.clojure/clojure "1.4.0"]
-   [com.taoensso/encore "1.32.0"]
+   [com.taoensso/encore "1.36.0"]
    [io.aviso/pretty     "0.1.18"]]
 
   :plugins
   [[lein-pprint       "1.1.2"]
    [lein-ancient      "0.6.7"]
    [lein-expectations "0.0.8"]
-   [lein-autoexpect   "1.4.3"]
+   [lein-autoexpect   "1.5.0"]
    [codox             "0.8.12"]]
 
   :profiles
@@ -32,8 +32,8 @@
                          [org.clojure/tools.logging "0.3.1"]
 
                          ;; Appender deps
-                         [com.taoensso/nippy   "2.9.0-RC2"]
-                         [com.taoensso/carmine "2.10.0"]
+                         [com.taoensso/nippy   "2.9.0"]
+                         [com.taoensso/carmine "2.11.1"]
                          [com.draines/postal   "1.11.3"]
                          [irclj                "0.5.0-alpha4"]]}
    :dev
diff --git a/src/taoensso/timbre/appenders/3rd_party/zmq.clj b/src/taoensso/timbre/appenders/3rd_party/zmq.clj
index 0ca4667..80493eb 100644
--- a/src/taoensso/timbre/appenders/3rd_party/zmq.clj
+++ b/src/taoensso/timbre/appenders/3rd_party/zmq.clj
@@ -4,6 +4,8 @@
   (:require [zeromq.zmq      :as zmq]
             [taoensso.timbre :as timbre]))
 
+;; TODO Test port to Timbre v4
+
 (defn make-zmq-socket [context transport address port]
   (doto (zmq/socket context :push)
     (zmq/connect (format "%s://%s:%d" transport address port))))