diff --git a/CHANGELOG.md b/CHANGELOG.md
index f142f8a76ba..15bcded0ff6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- next-header -->
 ## [Unreleased] - ReleaseDate
 
+## [4.5.0] - 2024-02-08
+
 ### Compatibility
 
 - Update MSRV to 1.74
@@ -4541,7 +4543,8 @@ Minimum version of Rust is now v1.13.0 (Stable)
 * **arg**  allow lifetimes other than 'static in arguments ([9e8c1fb9](https://github.com/clap-rs/clap/commit/9e8c1fb9406f8448873ca58bab07fe905f1551e5))
 
 <!-- next-url -->
-[Unreleased]: https://github.com/clap-rs/clap/compare/v4.4.18...HEAD
+[Unreleased]: https://github.com/clap-rs/clap/compare/v4.5.0...HEAD
+[4.5.0]: https://github.com/clap-rs/clap/compare/v4.4.18...v4.5.0
 [4.4.18]: https://github.com/clap-rs/clap/compare/v4.4.17...v4.4.18
 [4.4.17]: https://github.com/clap-rs/clap/compare/v4.4.16...v4.4.17
 [4.4.16]: https://github.com/clap-rs/clap/compare/v4.4.15...v4.4.16
diff --git a/CITATION.cff b/CITATION.cff
index 2ad91b8d989..696eea639b1 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -3,8 +3,8 @@ cff-version: 1.2.0
 message: Please cite this crate using these information.
 
 # Version information.
-date-released: 2024-01-16
-version: 4.4.18
+date-released: 2024-02-08
+version: 4.5.0
 
 # Project information.
 abstract: A full featured, fast Command Line Argument Parser for Rust
diff --git a/Cargo.lock b/Cargo.lock
index 2cf36cd2be1..052913345d6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -408,9 +408,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.4.18"
+version = "4.5.0"
 dependencies = [
- "clap_builder 4.4.18",
+ "clap_builder 4.5.0",
  "clap_derive",
  "humantime",
  "rustversion",
@@ -424,7 +424,7 @@ dependencies = [
 name = "clap_bench"
 version = "0.0.0"
 dependencies = [
- "clap 4.4.18",
+ "clap 4.5.0",
  "divan",
  "lazy_static",
 ]
@@ -444,7 +444,7 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.4.18"
+version = "4.5.0"
 dependencies = [
  "anstream",
  "anstyle",
@@ -461,9 +461,9 @@ dependencies = [
 
 [[package]]
 name = "clap_complete"
-version = "4.4.10"
+version = "4.5.0"
 dependencies = [
- "clap 4.4.18",
+ "clap 4.5.0",
  "clap_lex 0.7.0",
  "completest",
  "completest-pty",
@@ -477,18 +477,18 @@ dependencies = [
 
 [[package]]
 name = "clap_complete_fig"
-version = "4.4.2"
+version = "4.5.0"
 dependencies = [
- "clap 4.4.18",
+ "clap 4.5.0",
  "clap_complete",
  "snapbox",
 ]
 
 [[package]]
 name = "clap_complete_nushell"
-version = "4.4.2"
+version = "4.5.0"
 dependencies = [
- "clap 4.4.18",
+ "clap 4.5.0",
  "clap_complete",
  "completest",
  "completest-nu",
@@ -497,7 +497,7 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.4.7"
+version = "4.5.0"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -519,7 +519,7 @@ version = "0.7.0"
 name = "clap_mangen"
 version = "0.2.19"
 dependencies = [
- "clap 4.4.18",
+ "clap 4.5.0",
  "roff",
  "snapbox",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 1fc5e8b5070..04385dfaae1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ include = [
 
 [package]
 name = "clap"
-version = "4.4.18"
+version = "4.5.0"
 description = "A simple to use, efficient, and full-featured Command Line Argument Parser"
 repository = "https://github.com/clap-rs/clap"
 categories = ["command-line-interface"]
@@ -102,8 +102,8 @@ unstable-styles = ["clap_builder/unstable-styles"]
 bench = false
 
 [dependencies]
-clap_builder = { path = "./clap_builder", version = "=4.4.18", default-features = false }
-clap_derive = { path = "./clap_derive", version = "=4.4.7", optional = true }
+clap_builder = { path = "./clap_builder", version = "=4.5.0", default-features = false }
+clap_derive = { path = "./clap_derive", version = "=4.5.0", optional = true }
 
 [dev-dependencies]
 trybuild = "1.0.89"
diff --git a/clap_builder/Cargo.toml b/clap_builder/Cargo.toml
index a0de61ea8cd..173d547dbba 100644
--- a/clap_builder/Cargo.toml
+++ b/clap_builder/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clap_builder"
-version = "4.4.18"
+version = "4.5.0"
 description = "A simple to use, efficient, and full-featured Command Line Argument Parser"
 repository = "https://github.com/clap-rs/clap"
 categories = ["command-line-interface"]
diff --git a/clap_complete/CHANGELOG.md b/clap_complete/CHANGELOG.md
index 9512a3e7a99..dc05ecdd2c1 100644
--- a/clap_complete/CHANGELOG.md
+++ b/clap_complete/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- next-header -->
 ## [Unreleased] - ReleaseDate
 
+## [4.5.0] - 2024-02-08
+
 ### Compatibility
 
 - Update MSRV to 1.74
@@ -228,7 +230,8 @@ MSRV changed to 1.64.0
 ## [3.0.1] - 2022-01-03
 
 <!-- next-url -->
-[Unreleased]: https://github.com/clap-rs/clap/compare/clap_complete-v4.4.10...HEAD
+[Unreleased]: https://github.com/clap-rs/clap/compare/clap_complete-v4.5.0...HEAD
+[4.5.0]: https://github.com/clap-rs/clap/compare/clap_complete-v4.4.10...clap_complete-v4.5.0
 [4.4.10]: https://github.com/clap-rs/clap/compare/clap_complete-v4.4.9...clap_complete-v4.4.10
 [4.4.9]: https://github.com/clap-rs/clap/compare/clap_complete-v4.4.8...clap_complete-v4.4.9
 [4.4.8]: https://github.com/clap-rs/clap/compare/clap_complete-v4.4.7...clap_complete-v4.4.8
diff --git a/clap_complete/Cargo.toml b/clap_complete/Cargo.toml
index 7e6c34e17da..0f709bc77af 100644
--- a/clap_complete/Cargo.toml
+++ b/clap_complete/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clap_complete"
-version = "4.4.10"
+version = "4.5.0"
 description = "Generate shell completion scripts for your clap::Command"
 repository = "https://github.com/clap-rs/clap/tree/master/clap_complete"
 categories = ["command-line-interface"]
diff --git a/clap_complete/README.md b/clap_complete/README.md
index 61a631f14f4..780a3f72d4b 100644
--- a/clap_complete/README.md
+++ b/clap_complete/README.md
@@ -5,16 +5,16 @@
 
 [![Crates.io](https://img.shields.io/crates/v/clap_complete?style=flat-square)](https://crates.io/crates/clap_complete)
 [![Crates.io](https://img.shields.io/crates/d/clap_complete?style=flat-square)](https://crates.io/crates/clap_complete)
-[![License](https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square)](https://github.com/clap-rs/clap/blob/clap_complete-v4.4.10/LICENSE-APACHE)
-[![License](https://img.shields.io/badge/license-MIT-blue?style=flat-square)](https://github.com/clap-rs/clap/blob/clap_complete-v4.4.10/LICENSE-MIT)
+[![License](https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square)](https://github.com/clap-rs/clap/blob/clap_complete-v4.5.0/LICENSE-APACHE)
+[![License](https://img.shields.io/badge/license-MIT-blue?style=flat-square)](https://github.com/clap-rs/clap/blob/clap_complete-v4.5.0/LICENSE-MIT)
 
 Dual-licensed under [Apache 2.0](LICENSE-APACHE) or [MIT](LICENSE-MIT).
 
 1. [About](#about)
 2. [API Reference](https://docs.rs/clap_complete)
 3. [Questions & Discussions](https://github.com/clap-rs/clap/discussions)
-4. [CONTRIBUTING](https://github.com/clap-rs/clap/blob/clap_complete-v4.4.10/clap_complete/CONTRIBUTING.md)
-5. [Sponsors](https://github.com/clap-rs/clap/blob/clap_complete-v4.4.10/README.md#sponsors)
+4. [CONTRIBUTING](https://github.com/clap-rs/clap/blob/clap_complete-v4.5.0/clap_complete/CONTRIBUTING.md)
+5. [Sponsors](https://github.com/clap-rs/clap/blob/clap_complete-v4.5.0/README.md#sponsors)
 
 ## About
 
diff --git a/clap_complete_fig/CHANGELOG.md b/clap_complete_fig/CHANGELOG.md
index c40b4592320..9e9a4115e6a 100644
--- a/clap_complete_fig/CHANGELOG.md
+++ b/clap_complete_fig/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- next-header -->
 ## [Unreleased] - ReleaseDate
 
+## [4.5.0] - 2024-02-08
+
 ### Compatibility
 
 - Update MSRV to 1.74
@@ -87,7 +89,8 @@ MSRV changed to 1.64.0
 ## [3.0.1] - 2022-01-03
 
 <!-- next-url -->
-[Unreleased]: https://github.com/clap-rs/clap/compare/clap_complete_fig-v4.4.2...HEAD
+[Unreleased]: https://github.com/clap-rs/clap/compare/clap_complete_fig-v4.5.0...HEAD
+[4.5.0]: https://github.com/clap-rs/clap/compare/clap_complete_fig-v4.4.2...clap_complete_fig-v4.5.0
 [4.4.2]: https://github.com/clap-rs/clap/compare/clap_complete_fig-v4.4.1...clap_complete_fig-v4.4.2
 [4.4.1]: https://github.com/clap-rs/clap/compare/clap_complete_fig-v4.4.0...clap_complete_fig-v4.4.1
 [4.4.0]: https://github.com/clap-rs/clap/compare/clap_complete_fig-v4.3.1...clap_complete_fig-v4.4.0
diff --git a/clap_complete_fig/Cargo.toml b/clap_complete_fig/Cargo.toml
index 052387ba1ee..7575308cf9c 100644
--- a/clap_complete_fig/Cargo.toml
+++ b/clap_complete_fig/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clap_complete_fig"
-version = "4.4.2"
+version = "4.5.0"
 description = "A generator library used with clap for Fig completion scripts"
 repository = "https://github.com/clap-rs/clap/tree/master/clap_complete_fig"
 categories = ["command-line-interface"]
diff --git a/clap_complete_nushell/CHANGELOG.md b/clap_complete_nushell/CHANGELOG.md
index a51649d78d3..3357f57ffc8 100644
--- a/clap_complete_nushell/CHANGELOG.md
+++ b/clap_complete_nushell/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- next-header -->
 ## [Unreleased] - ReleaseDate
 
+## [4.5.0] - 2024-02-08
+
 ### Compatibility
 
 - Update MSRV to 1.74
@@ -32,7 +34,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ## [4.3.0] - 2023-05-24
 
 <!-- next-url -->
-[Unreleased]: https://github.com/clap-rs/clap/compare/clap_complete_nushell-v4.4.2...HEAD
+[Unreleased]: https://github.com/clap-rs/clap/compare/clap_complete_nushell-v4.5.0...HEAD
+[4.5.0]: https://github.com/clap-rs/clap/compare/clap_complete_nushell-v4.4.2...clap_complete_nushell-v4.5.0
 [4.4.2]: https://github.com/clap-rs/clap/compare/clap_complete_nushell-v4.4.1...clap_complete_nushell-v4.4.2
 [4.4.1]: https://github.com/clap-rs/clap/compare/clap_complete_nushell-v4.4.0...clap_complete_nushell-v4.4.1
 [4.4.0]: https://github.com/clap-rs/clap/compare/clap_complete_nushell-v4.3.2...clap_complete_nushell-v4.4.0
diff --git a/clap_complete_nushell/Cargo.toml b/clap_complete_nushell/Cargo.toml
index a6b97b5561d..e0cbbcc0e36 100644
--- a/clap_complete_nushell/Cargo.toml
+++ b/clap_complete_nushell/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clap_complete_nushell"
-version = "4.4.2"
+version = "4.5.0"
 description = "A generator library used with clap for Nushell completion scripts"
 repository = "https://github.com/clap-rs/clap/tree/master/clap_complete_nushell"
 categories = ["command-line-interface"]
diff --git a/clap_derive/Cargo.toml b/clap_derive/Cargo.toml
index 8609af265d5..5c512aba262 100644
--- a/clap_derive/Cargo.toml
+++ b/clap_derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clap_derive"
-version = "4.4.7"
+version = "4.5.0"
 description = "Parse command line argument by defining a struct, derive crate."
 repository = "https://github.com/clap-rs/clap/tree/master/clap_derive"
 categories = ["command-line-interface", "development-tools::procedural-macro-helpers"]
diff --git a/src/lib.rs b/src/lib.rs
index ddb6d993ee4..3e3f741313d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,7 +11,7 @@
 //! - [Cookbook][_cookbook]
 //! - [FAQ][_faq]
 //! - [Discussions](https://github.com/clap-rs/clap/discussions)
-//! - [CHANGELOG](https://github.com/clap-rs/clap/blob/v4.4.18/CHANGELOG.md) (includes major version migration
+//! - [CHANGELOG](https://github.com/clap-rs/clap/blob/v4.5.0/CHANGELOG.md) (includes major version migration
 //!   guides)
 //!
 //! ## Aspirations