diff --git a/CHANGELOG.md b/CHANGELOG.md
index e74a549..4a4e4df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+# v0.1.4
+The fifth version of mate.
+1. Added high-level error handling and errors: [see in docs](https://github.com/theiskaa/mate#errors)
+2. Implemented functionality to parse and calculate absolute-value expressions.
+ 
+- **Pull Requests:** [#22](https://github.com/theiskaa/mate/pull/22) & [#23](https://github.com/theiskaa/mate/pull/23)
+
+- **H-E that versions has ability to solve**: `[ 2 - 12 ] / 2` -> *`5`*
+
 # v0.1.3
 The fourth version of mate.
 Implemented functionality to parse and calculate power expressions.
diff --git a/Cargo.lock b/Cargo.lock
index 3a7b2a8..2964c54 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,7 +19,7 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "mate-rs"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "regex",
  "substring",
diff --git a/Cargo.toml b/Cargo.toml
index af031a0..03d190c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,9 +1,9 @@
 [package]
 name = "mate-rs"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 authors = ["me@theiskaa.com"]
-description = "A simple and lightweight math library, that can parse and calculate string expressions"
+description = "A simple and lightweight arithmetic expression interpreter"
 readme = "README.md"
 homepage = "https://github.com/theiskaa/mate"
 repository = "https://github.com/theiskaa/mate"
diff --git a/README.md b/README.md
index 955ef8e..b03c45f 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Mate is a library for parsing and calculating arithmetic expressions inputted as
 This crate is on [crates.io](http://crates.io/crates/mate-rs) and can be used by adding mate-rs to your dependencies in your project's `Cargo.toml`.
 ```toml
 [dependencies]
-mate-rs = "0.1.3"
+mate-rs = "0.1.4"
 ```
 
 ## Example: with `Mate`
diff --git a/src/lib.rs b/src/lib.rs
index 050761e..abda316 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,7 +9,7 @@ expression's result directly without dealing with parsing and calculating manual
 This crate is on [crates.io](http://crates.io/crates/mate-rs) and can be used by adding mate-rs to your dependencies in your project's `Cargo.toml`.
 ```toml
 [dependencies]
-mate-rs = "0.1.3"
+mate-rs = "0.1.4"
 ```
 
 # Example: with `Mate`
diff --git a/target/.rustc_info.json b/target/.rustc_info.json
index c369a45..d0ee6f1 100644
--- a/target/.rustc_info.json
+++ b/target/.rustc_info.json
@@ -1 +1 @@
-{"rustc_fingerprint":12117850448195922720,"outputs":{"5309432699494263626":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n","stderr":""},"17598535894874457435":{"success":true,"status":"","code":0,"stdout":"rustc 1.59.0 (9d1b2106e 2022-02-23)\nbinary: rustc\ncommit-hash: 9d1b2106e23b1abd32fce1f17267604a5102f57a\ncommit-date: 2022-02-23\nhost: x86_64-apple-darwin\nrelease: 1.59.0\nLLVM version: 13.0.0\n","stderr":""},"2797684049618456168":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n","stderr":""},"931469667778813386":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n/Users/ismaelshakverdiev/.rustup/toolchains/stable-x86_64-apple-darwin\ndebug_assertions\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_feature=\"sse3\"\ntarget_feature=\"ssse3\"\ntarget_os=\"macos\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"apple\"\nunix\n","stderr":""}},"successes":{}}
\ No newline at end of file
+{"rustc_fingerprint":12117850448195922720,"outputs":{"9801812020922494658":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n","stderr":""},"931469667778813386":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n/Users/ismaelshakverdiev/.rustup/toolchains/stable-x86_64-apple-darwin\ndebug_assertions\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_feature=\"sse3\"\ntarget_feature=\"ssse3\"\ntarget_os=\"macos\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"apple\"\nunix\n","stderr":""},"9188953259628460613":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n/Users/ismaelshakverdiev/.rustup/toolchains/stable-x86_64-apple-darwin\ndebug_assertions\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_feature=\"sse3\"\ntarget_feature=\"ssse3\"\ntarget_os=\"macos\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"apple\"\nunix\n","stderr":""},"5309432699494263626":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n","stderr":""},"17598535894874457435":{"success":true,"status":"","code":0,"stdout":"rustc 1.59.0 (9d1b2106e 2022-02-23)\nbinary: rustc\ncommit-hash: 9d1b2106e23b1abd32fce1f17267604a5102f57a\ncommit-date: 2022-02-23\nhost: x86_64-apple-darwin\nrelease: 1.59.0\nLLVM version: 13.0.0\n","stderr":""},"760224266538013107":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n","stderr":""},"2797684049618456168":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n","stderr":""}},"successes":{}}
\ No newline at end of file