diff --git a/CHANGELOG.md b/CHANGELOG.md
index 484e542d..13f2a500 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,33 @@
 CHANGELOG for 2.x
 =================
 
+* 2.6.0 (2018-06-11)
+
+    *   Feature: Significantly improve memory consumption and performance by only passing resolver args
+        to resolver and canceller if callback requires them. Also use static callbacks without
+        binding to promise, clean up canceller function reference when they are no longer
+        needed and hide resolver and canceller references from call stack on PHP 7+.
+        (#113, #115, #116, #117, #118, #119 and #123 by @clue)
+
+        These changes combined mean that rejecting promises with an `Exception` should
+        no longer cause any internal circular references which could cause some unexpected
+        memory growth in previous versions. By explicitly avoiding and explicitly
+        cleaning up said references, we can avoid relying on PHP's circular garbage collector
+        to kick in which significantly improves performance when rejecting many promises.
+
+    *   Mark legacy progress support / notification API as deprecated
+        (#112 by @clue)
+
+    *   Recommend rejecting promises by throwing an exception
+        (#114 by @jsor)
+
+    *   Improve documentation to properly instantiate LazyPromise
+        (#121 by @holtkamp)
+
+    *   Follower cancellation propagation was originally planned for this release
+        but has been reverted for now and is planned for a future release.
+        (#99 by @jsor and #122 by @clue)
+
 * 2.5.1 (2017-03-25)
 
     * Fix circular references when resolving with a promise which follows
diff --git a/README.md b/README.md
index 9480fae3..6a0c5d1a 100644
--- a/README.md
+++ b/README.md
@@ -51,8 +51,9 @@ Table of Contents
      * [Mixed resolution and rejection forwarding](#mixed-resolution-and-rejection-forwarding)
      * [Progress event forwarding](#progress-event-forwarding)
    * [done() vs. then()](#done-vs-then)
-5. [Credits](#credits)
-6. [License](#license)
+5. [Install](#install)
+6. [Credits](#credits)
+7. [License](#license)
 
 Introduction
 ------------
@@ -833,6 +834,25 @@ wrapped in an exception of the type `React\Promise\UnhandledRejectionException`.
 
 You can get the original rejection reason by calling `$exception->getReason()`.
 
+Install
+-------
+
+The recommended way to install this library is [through Composer](https://getcomposer.org).
+[New to Composer?](https://getcomposer.org/doc/00-intro.md)
+
+This will install the latest supported version:
+
+```bash
+$ composer require react/promise:^2.6
+```
+
+See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
+
+This project aims to run on any platform and thus does not require any PHP
+extensions and supports running on legacy PHP 5.4 through current PHP 7+ and HHVM.
+It's *highly recommended to use PHP 7+* for this project due to its vast
+performance improvements.
+
 Credits
 -------