diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a2c4f76..6e35dc6a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,83 @@
+# Version 0.4.0-rc.2 (Nov 30, 2018)
+
+## New Features
+
+This release includes the following new features:
+
+  * Introduced the [`SpaceHelmet`] security and privacy headers fairing.
+  * Private cookies are gated behind a `private-cookies` feature.
+  * Applications can launch without a working directory.
+  * `Option` and `Result` types can be used in `uri!` expressions.
+  * Added [`State::from()`] for constructing `State` values.
+
+[`SpaceHelmet`]: https://api.rocket.rs/v0.4/rocket_contrib/helmet/index.html
+[`State::from()`]: https://api.rocket.rs/v0.4/rocket/struct.State.html#method.from
+
+## Breaking Changes
+
+This release includes several breaking changes. These changes are listed below
+along with a short note about how to handle the breaking change in existing
+applications when applicable.
+
+  * **Minimum required nightly is `2018-11-23`.**
+
+    Update to `nightly-2018-11-23` or later before updating to `rc.2`.
+
+  * **[`UriDisplay`] is parameterized by a [`UriPart`].**
+
+    When implementing `UriDisplay`, decide whether the value is to be displayed
+    in the path part, query part, or both of a URI. Implement `UriDisplay<Path>`
+    and/or `UriDisplay<Query>` appropriately.
+
+  * **[`UriDisplay`] derive was removed in favor of [`UriDisplayQuery`] and
+    [`UriDisplayPath`].**
+
+    To mimic the previous behavior, derive `UriDisplayQuery`.
+
+  * **[`Config::root()`] returns an `Option<&Path>` instead of an `&Path`.**
+
+    For the previous behavior, use `config.root().unwrap()`.
+
+  * **[`Config`] constructors return a `Config` instead of a `Result<Config>`.**
+
+  * **`ConfigError::BadCWD`, `Config.config_path` were removed.**
+
+[`UriDisplay`]: https://api.rocket.rs/v0.4/rocket/http/uri/trait.UriDisplay.html
+[`UriPart`]: https://api.rocket.rs/v0.4/rocket/http/uri/trait.UriPart.html
+[`UriDisplayPath`]: https://api.rocket.rs/v0.4/rocket_codegen/derive.UriDisplayPath.html
+[`UriDisplayQuery`]: https://api.rocket.rs/v0.4/rocket_codegen/derive.UriDisplayQuery.html
+[`Config`]: https://api.rocket.rs/v0.4/rocket/struct.Config.html
+[`Config::root()`]: https://api.rocket.rs/v0.4/rocket/struct.Config.html#method.root
+
+## Fixes
+
+Several issues in the first release candidate were addressed in this release:
+
+  * Characters in URIs are properly percent-encoded ([#808]).
+  * Generated variables are properly spanned and prefixed ([#817], [#839]).
+  * [`Client`] regained `Sync` ([#814]).
+
+[#808]: https://github.com/SergioBenitez/Rocket/issues/808
+[#817]: https://github.com/SergioBenitez/Rocket/issues/817
+[#839]: https://github.com/SergioBenitez/Rocket/issues/839
+[#814]: https://github.com/SergioBenitez/Rocket/issues/814
+
+## General Improvements
+
+In addition to new features, Rocket saw the following improvements:
+
+  * Console coloring uses default terminal colors instead of white.
+  * Console coloring is consistent across all messages.
+  * `i128` and `u128` now implement [`FromParam`], [`FromFormValue`].
+  * [`Form`] and [`LenientForm`] can be publicly constructed.
+  * Added ZIP (`application/zip`) as a known media type.
+  * The `base64` dependency was updated to `0.10`.
+  * Private, hidden `http` types are no longer visible in the rustdocs.
+
+[`FromParam`]: https://api.rocket.rs/v0.4/rocket/request/trait.FromParam.html
+[`FromFormValue`]: https://api.rocket.rs/v0.4/rocket/request/trait.FromFormValue.html
+[`Data`]: https://api.rocket.rs/v0.4/rocket/struct.Data.html
+
 # Version 0.4.0-rc.1 (Oct 31, 2018)
 
 ## New Features
diff --git a/contrib/codegen/Cargo.toml b/contrib/codegen/Cargo.toml
index 3ab72780..9dfb1247 100644
--- a/contrib/codegen/Cargo.toml
+++ b/contrib/codegen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rocket_contrib_codegen"
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 authors = ["Sergio Benitez <sb@sergio.bz>"]
 description = "Procedural macros for the Rocket contrib libraries."
 documentation = "https://api.rocket.rs/v0.4/rocket_contrib/"
diff --git a/contrib/lib/Cargo.toml b/contrib/lib/Cargo.toml
index a68162c4..86ca1076 100644
--- a/contrib/lib/Cargo.toml
+++ b/contrib/lib/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rocket_contrib"
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 authors = ["Sergio Benitez <sb@sergio.bz>"]
 description = "Community contributed libraries for the Rocket web framework."
 documentation = "https://api.rocket.rs/v0.4/rocket_contrib/"
@@ -36,8 +36,8 @@ redis_pool = ["databases", "redis", "r2d2_redis"]
 
 [dependencies]
 # Global dependencies.
-rocket_contrib_codegen = { version = "0.4.0-rc.1", path = "../codegen", optional = true }
-rocket = { version = "0.4.0-rc.1", path = "../../core/lib/" }
+rocket_contrib_codegen = { version = "0.4.0-rc.2", path = "../codegen", optional = true }
+rocket = { version = "0.4.0-rc.2", path = "../../core/lib/" }
 log = "0.4"
 
 # Serialization and templating dependencies.
diff --git a/contrib/lib/src/databases.rs b/contrib/lib/src/databases.rs
index a312599c..148b06b0 100644
--- a/contrib/lib/src/databases.rs
+++ b/contrib/lib/src/databases.rs
@@ -32,7 +32,7 @@
 //!
 //! ```toml
 //! [dependencies.rocket_contrib]
-//! version = "0.4.0-rc.1"
+//! version = "0.4.0-rc.2"
 //! default-features = false
 //! features = ["diesel_sqlite_pool"]
 //! ```
diff --git a/contrib/lib/src/lib.rs b/contrib/lib/src/lib.rs
index cca8320c..51b3006d 100644
--- a/contrib/lib/src/lib.rs
+++ b/contrib/lib/src/lib.rs
@@ -33,7 +33,7 @@
 //!
 //! ```toml
 //! [dependencies.rocket_contrib]
-//! version = "0.4.0-rc.1"
+//! version = "0.4.0-rc.2"
 //! default-features = false
 //! features = ["json"]
 //! ```
diff --git a/contrib/lib/src/templates/mod.rs b/contrib/lib/src/templates/mod.rs
index 68b5048c..f77f1538 100644
--- a/contrib/lib/src/templates/mod.rs
+++ b/contrib/lib/src/templates/mod.rs
@@ -9,7 +9,7 @@
 //!
 //!      ```toml
 //!      [dependencies.rocket_contrib]
-//!      version = 0.4.0-rc.1
+//!      version = 0.4.0-rc.2
 //!      default-features = false
 //!      features = ["handlebars_templates", "tera_templates"]
 //!      ```
diff --git a/core/codegen/Cargo.toml b/core/codegen/Cargo.toml
index 3fa5c850..63bc0e06 100644
--- a/core/codegen/Cargo.toml
+++ b/core/codegen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rocket_codegen"
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 authors = ["Sergio Benitez <sb@sergio.bz>"]
 description = "Procedural macros for the Rocket web framework."
 documentation = "https://api.rocket.rs/v0.4/rocket_codegen/"
@@ -17,7 +17,7 @@ proc-macro = true
 [dependencies]
 indexmap = "1.0"
 quote = "0.6.1"
-rocket_http = { version = "0.4.0-rc.1", path = "../http/" }
+rocket_http = { version = "0.4.0-rc.2", path = "../http/" }
 devise = "0.2"
 
 [build-dependencies]
@@ -25,5 +25,5 @@ yansi = "0.5"
 version_check = "0.1.3"
 
 [dev-dependencies]
-rocket = { version = "0.4.0-rc.1", path = "../lib" }
+rocket = { version = "0.4.0-rc.2", path = "../lib" }
 compiletest_rs = { version = "0.3", features = ["stable"] }
diff --git a/core/codegen/src/lib.rs b/core/codegen/src/lib.rs
index ef8e1c5a..47448892 100644
--- a/core/codegen/src/lib.rs
+++ b/core/codegen/src/lib.rs
@@ -22,7 +22,7 @@
 //!
 //! ```toml
 //! [dependencies]
-//! rocket = "0.4.0-rc.1"
+//! rocket = "0.4.0-rc.2"
 //! ```
 //!
 //! And to import all macros, attributes, and derives via `#[macro_use]` in the
diff --git a/core/http/Cargo.toml b/core/http/Cargo.toml
index fcb3f38a..39c0a793 100644
--- a/core/http/Cargo.toml
+++ b/core/http/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rocket_http"
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 authors = ["Sergio Benitez <sb@sergio.bz>"]
 description = """
 Types, traits, and parsers for HTTP requests, responses, and headers.
@@ -36,4 +36,4 @@ features = ["server"]
 optional = true
 
 [dev-dependencies]
-rocket = { version = "0.4.0-rc.1", path = "../lib" }
+rocket = { version = "0.4.0-rc.2", path = "../lib" }
diff --git a/core/lib/Cargo.toml b/core/lib/Cargo.toml
index 7fdaa2c8..7d407a96 100644
--- a/core/lib/Cargo.toml
+++ b/core/lib/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rocket"
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 authors = ["Sergio Benitez <sb@sergio.bz>"]
 description = """
 Web framework for nightly with a focus on ease-of-use, expressibility, and speed.
@@ -23,8 +23,8 @@ tls = ["rocket_http/tls"]
 private-cookies = ["rocket_http/private-cookies"]
 
 [dependencies]
-rocket_codegen = { version = "0.4.0-rc.1", path = "../codegen" }
-rocket_http = { version = "0.4.0-rc.1", path = "../http" }
+rocket_codegen = { version = "0.4.0-rc.2", path = "../codegen" }
+rocket_http = { version = "0.4.0-rc.2", path = "../http" }
 yansi = "0.5"
 log = "0.4"
 toml = "0.4.7"
diff --git a/core/lib/src/lib.rs b/core/lib/src/lib.rs
index a6dea9e2..429c26e0 100644
--- a/core/lib/src/lib.rs
+++ b/core/lib/src/lib.rs
@@ -47,7 +47,7 @@
 //!
 //! ```toml
 //! [dependencies]
-//! rocket = "0.4.0-rc.1"
+//! rocket = "0.4.0-rc.2"
 //! ```
 //!
 //! Then, add the following to the top of your `main.rs` file:
diff --git a/scripts/config.sh b/scripts/config.sh
index 0f961d3f..27beddfe 100755
--- a/scripts/config.sh
+++ b/scripts/config.sh
@@ -24,7 +24,7 @@ function relative() {
 }
 
 # Full and major version of Rocket
-ROCKET_VERSION="0.4.0-rc.1"
+ROCKET_VERSION="0.4.0-rc.2"
 ROCKET_MAJOR_VERSION="0.4"
 CURRENT_RELEASE=true
 
diff --git a/site/guide/1-quickstart.md b/site/guide/1-quickstart.md
index 15c4b214..aa6bf83d 100644
--- a/site/guide/1-quickstart.md
+++ b/site/guide/1-quickstart.md
@@ -15,7 +15,7 @@ For instance, the following set of commands runs the `hello_world` example:
 ```sh
 git clone https://github.com/SergioBenitez/Rocket
 cd Rocket
-git checkout v0.4.0-rc.1
+git checkout v0.4.0-rc.2
 cd examples/hello_world
 cargo run
 ```
diff --git a/site/guide/10-pastebin.md b/site/guide/10-pastebin.md
index 61b32f67..2985fc01 100644
--- a/site/guide/10-pastebin.md
+++ b/site/guide/10-pastebin.md
@@ -43,8 +43,8 @@ Then add the usual Rocket dependencies to the `Cargo.toml` file:
 
 ```toml
 [dependencies]
-rocket = "0.4.0-rc.1"
-rocket_codegen = "0.4.0-rc.1"
+rocket = "0.4.0-rc.2"
+rocket_codegen = "0.4.0-rc.2"
 ```
 
 And finally, create a skeleton Rocket application to work off of in
diff --git a/site/guide/2-getting-started.md b/site/guide/2-getting-started.md
index b55efed0..14a21f3f 100644
--- a/site/guide/2-getting-started.md
+++ b/site/guide/2-getting-started.md
@@ -50,7 +50,7 @@ Now, add Rocket as a dependency in your `Cargo.toml`:
 
 ```
 [dependencies]
-rocket = "0.4.0-rc.1"
+rocket = "0.4.0-rc.2"
 ```
 
 Modify `src/main.rs` so that it contains the code for the Rocket `Hello, world!`
diff --git a/site/guide/4-requests.md b/site/guide/4-requests.md
index 9a530055..26875809 100644
--- a/site/guide/4-requests.md
+++ b/site/guide/4-requests.md
@@ -510,7 +510,7 @@ so that you depend on `rocket` as follows:
 
 ```toml
 [dependencies]
-rocket = { version = "0.4.0-rc.1", default-features = false }
+rocket = { version = "0.4.0-rc.2", default-features = false }
 ```
 
 [`ring`]: https://github.com/briansmith/ring
diff --git a/site/guide/6-state.md b/site/guide/6-state.md
index ca74d129..aa10c06b 100644
--- a/site/guide/6-state.md
+++ b/site/guide/6-state.md
@@ -215,7 +215,7 @@ databases, you'd write in `Cargo.toml`:
 
 ```toml
 [dependencies.rocket_contrib]
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 default-features = false
 features = ["diesel_sqlite_pool"]
 ```
diff --git a/site/guide/9-configuration.md b/site/guide/9-configuration.md
index ab1d46a8..43b1f78b 100644
--- a/site/guide/9-configuration.md
+++ b/site/guide/9-configuration.md
@@ -279,7 +279,7 @@ dependency in your `Cargo.toml` file:
 
 ```
 [dependencies]
-rocket = { version = "0.4.0-rc.1", features = ["tls"] }
+rocket = { version = "0.4.0-rc.2", features = ["tls"] }
 ```
 
 TLS is configured through the `tls` configuration parameter. The value of `tls`
diff --git a/site/index.toml b/site/index.toml
index 223da92e..32fcd918 100644
--- a/site/index.toml
+++ b/site/index.toml
@@ -3,8 +3,8 @@
 ###############################################################################
 
 [release]
-version = "0.4.0-rc.1"
-date = "Oct 31, 2018"
+version = "0.4.0-rc.2"
+date = "Nov 30, 2018"
 
 ###############################################################################
 # Top features: displayed in the header under the introductory text.
diff --git a/site/news/2018-11-30-version-0.4-rc-2.md b/site/news/2018-11-30-version-0.4-rc-2.md
new file mode 100644
index 00000000..a44ee082
--- /dev/null
+++ b/site/news/2018-11-30-version-0.4-rc-2.md
@@ -0,0 +1,48 @@
+# Rocket's 2nd v0.4 Release Candidate
+
+<p class="metadata"><strong>
+  Posted by <a href="https://sergio.bz">Sergio Benitez</a> on November 30, 2018
+</strong></p>
+
+After a successful and productive initial v0.4 release candidate, I am happy to
+announce that the second release candidate for Rocket v0.4 is now available.
+
+This release candidate fixes issues identified during the first release
+candidate, introduces further features, and leverages upstream `rustc`
+contributions for improved diagnostics and stability. As before, this is an
+opportunity to discover issues with Rocket v0.4 and its documentation before its
+general release. We encourage all users to migrate their applications to the
+second release candidate and report any issues to the [GitHub issue tracker].
+To update to `v0.4.0-rc.2`, manually update `rocket` in your `Cargo.toml` file:
+
+```toml
+[dependencies]
+rocket = "0.4.0-rc.2"
+```
+
+Barring any major issues, of which none are expected, the general release of
+Rocket v0.4 is planned for Wednesday, December 5th, when we'll post a full news
+article covering the biggest features and changes in Rocket v0.4. Until then,
+the [CHANGELOG] contains every feature addition, change, and improvement since
+v0.4.0-rc.1 and v0.3, as well as information on migrating your applications to
+v0.4. All documentation, including the [guide] and [API docs], has been updated
+in full for the second release candidate.
+
+We're excited for your feedback, and we look forward to seeing you again on
+Wednesday, December 5th for the general release!
+
+[GitHub issue tracker]: https://github.com/SergioBenitez/Rocket/issues
+[API docs]: https://api.rocket.rs/v0.4/rocket/
+[guide]: ../../guide
+[CHANGELOG]: https://github.com/SergioBenitez/Rocket/tree/v0.4/CHANGELOG.md#version-040-rc2-nov-30-2018
+
+## About Rocket
+
+Rocket is a web framework for Rust with a focus on ease of use, expressibility,
+and speed. Rocket makes it simple to write fast web applications without
+sacrificing flexibility or type safety. All with minimal code.
+
+Not already using Rocket? Join the tens of thousands of users and hundreds of
+companies happily using Rocket today! Rocket's extensive documentation makes it
+easy. Get started now by [reading through the guide](../../guide) or learning
+more from [the overview](../../overview).
diff --git a/site/news/index.toml b/site/news/index.toml
index 1f9a7695..1384ecd4 100644
--- a/site/news/index.toml
+++ b/site/news/index.toml
@@ -1,3 +1,23 @@
+[[articles]]
+title = "Rocket's 2nd v0.4 Release Candidate"
+slug = "2018-11-30-version-0.4-rc-2"
+author = "Sergio Benitez"
+author_url = "https://sergio.bz"
+date = "November 30, 2018"
+snippet = """
+After a successful and productive initial v0.4 release candidate, I am happy to
+announce that the second release candidate for Rocket v0.4 is now available.
+
+This release candidate fixes issues identified during the first release
+candidate, introduces further features, and leverages upstream `rustc`
+contributions for improved diagnostics and stability. As before, this is an
+opportunity to discover issues with Rocket v0.4 and its documentation before its
+general release. We encourage all users to migrate their applications to the
+second release candidate and report any issues to the [GitHub issue tracker].
+
+[GitHub issue tracker]: https://github.com/SergioBenitez/Rocket/issues
+"""
+
 [[articles]]
 title = "Rocket v0.4 Release Candidate"
 slug = "2018-10-31-version-0.4-rc"