diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c4b255..f104f25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,20 @@
+
+## 1.4.0 (2019-07-13)
+
+#### Bug Fixes
+
+* **installation:** Fix rustlings installation check ([7a252c47](https://github.com/rust-lang/rustlings/commit/7a252c475551486efb52f949b8af55803b700bc6))
+* **iterators:** Rename iterator3.rs ([433d2115](https://github.com/rust-lang/rustlings/commit/433d2115bc1c04b6d34a335a18c9a8f3e2672bc6))
+* **readme:** http to https ([70946b85](https://github.com/rust-lang/rustlings/commit/70946b85e536e80e70ed9505cb650ca0a3a1fbb5))
+* **test1:** renamed function name to snake case ([89d5186c](https://github.com/rust-lang/rustlings/commit/89d5186c0dae8135ecabf90ee8bb35949bc2d29b))
+* **cli:** Check if changed exercise file exists before calling verify ([ba85ca3](https://github.com/rust-lang/rustlings/commit/ba85ca32c4cfc61de46851ab89f9c58a28f33c88))
+* **structs1:** Fix the irrefutable let pattern warning ([cc6a141](https://github.com/rust-lang/rustlings/commit/cc6a14104d7c034eadc98297eaaa972d09c50b1f))
+
+#### Features
+
+* **changelog:** Use clog for changelogs ([34e31232](https://github.com/rust-lang/rustlings/commit/34e31232dfddde284a341c9609b33cd27d9d5724))
+* **iterators2:** adds iterators2 exercise including config ([9288fccf](https://github.com/rust-lang/rustlings/commit/9288fccf07a2c5043b76d0fd6491e4cf72d76031))
+
### 1.3.0 (2019-06-05)
@@ -70,4 +87,4 @@
### 1.0.0 (2019-03-06)
-Initial release.
\ No newline at end of file
+Initial release.
diff --git a/Cargo.lock b/Cargo.lock
index 303a5ae..36d066e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -600,7 +600,7 @@ dependencies = [
[[package]]
name = "rustlings"
-version = "1.3.0"
+version = "1.4.0"
dependencies = [
"assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
"clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 3115c53..d453dae 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
[package]
name = "rustlings"
-version = "1.3.0"
-authors = ["Olivia <819880950@qq.com>", "Carol (Nichols || Goulding) ", "Carol (Nichols || Goulding)