diff --git a/CHANGELOG b/CHANGELOG
index ab1598c..9ded708 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,39 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [0.4.0] - 2025-10-28
+
+### Bug Fixes
+
+- Remove concurrency for base/ci builder image jobs
+
+### Miscellaneous Tasks
+
+- Add CODEOWNERS (#115)
+- Bump taiki-e/cache-cargo-install-action from 2.2.0 to 2.3.0 (#114)
+- Update to pgrx v0.16.0 (#118)
+- Bump getrandom from 0.2.16 to 0.3.3 (#119)
+- Bump actions/download-artifact from 4.3.0 to 5.0.0 (#120)
+- Bump actions/checkout from 4.2.2 to 5.0.0 (#121)
+- Bump uuid from 1.17.0 to 1.18.0 (#122)
+- Bump anyhow from 1.0.98 to 1.0.99 (#123)
+- Bump time from 0.3.41 to 0.3.42 (#124)
+- Bump uuid from 1.18.0 to 1.18.1 (#125)
+- Bump time from 0.3.42 to 0.3.43 (#126)
+- Bump softprops/action-gh-release from 2.3.2 to 2.3.3 (#127)
+- Bump chrono from 0.4.41 to 0.4.42 (#128)
+- Bump Swatinem/rust-cache from 2.8.0 to 2.8.1 (#129)
+- Bump taiki-e/cache-cargo-install-action from 2.3.0 to 2.3.1 (#132)
+- Bump anyhow from 1.0.99 to 1.0.100 (#131)
+- Bump time from 0.3.43 to 0.3.44 (#130)
+- Bump softprops/action-gh-release from 2.3.3 to 2.3.4 (#133)
+- Bump softprops/action-gh-release from 2.3.4 to 2.4.0 (#134)
+- Bump softprops/action-gh-release from 2.4.0 to 2.4.1 (#135)
+- Bump getrandom from 0.3.3 to 0.3.4 (#136)
+- Update rust toolchain & MSRV to 1.90.0 (#138)
+- Bump actions/download-artifact from 5.0.0 to 6.0.0 (#139)
+- Update to pg16.10, pg15.14, pg17.6, alpine3.22.2 (#141)
+
 ## [0.3.1] - 2025-07-19
 
 ### Features
diff --git a/Cargo.lock b/Cargo.lock
index 8bf9114..eed2960 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1276,7 +1276,7 @@ dependencies = [
 
 [[package]]
 name = "pg_idkit"
-version = "0.3.1"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "chrono",
diff --git a/Cargo.toml b/Cargo.toml
index 0cdc43d..add8602 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pg_idkit"
-version = "0.3.1"
+version = "0.4.0"
 edition = "2021"
 authors = ["Victor Adossi <vados@vadosware.io>"]
 license = "MIT"
@@ -69,7 +69,7 @@ assets = []
 [package.metadata.generate-rpm.variants.pg13]
 assets = [
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/lib/postgresql/pg_idkit.so", dest = "/usr/lib64/pgsql/pg_idkit.so", mode = "755" },
-  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.3.1.sql", mode = "755" },
+  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.4.0.sql", mode = "755" },
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit.control", dest = "/usr/share/pgsql/extension/pg_idkit.control", mode = "755" },
 ]
 requires = { postgresql-server = "> 13", glibc = "*" }
@@ -78,7 +78,7 @@ release = "pg13"
 [package.metadata.generate-rpm.variants.pg14]
 assets = [
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/lib/postgresql/pg_idkit.so", dest = "/usr/lib64/pgsql/pg_idkit.so", mode = "755" },
-  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.3.1.sql", mode = "755" },
+  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.4.0.sql", mode = "755" },
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit.control", dest = "/usr/share/pgsql/extension/pg_idkit.control", mode = "755" },
 ]
 requires = { postgresql-server = "> 14", glibc = "*" }
@@ -87,7 +87,7 @@ release = "pg14"
 [package.metadata.generate-rpm.variants.pg15]
 assets = [
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/lib/postgresql/pg_idkit.so", dest = "/usr/lib64/pgsql/pg_idkit.so", mode = "755" },
-  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.3.1.sql", mode = "755" },
+  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.4.0.sql", mode = "755" },
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit.control", dest = "/usr/share/pgsql/extension/pg_idkit.control", mode = "755" },
 ]
 requires = { postgresql-server = "> 15", glibc = "*" }
@@ -96,7 +96,7 @@ release = "pg15"
 [package.metadata.generate-rpm.variants.pg16]
 assets = [
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/lib/postgresql/pg_idkit.so", dest = "/usr/lib64/pgsql/pg_idkit.so", mode = "755" },
-  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.3.1.sql", mode = "755" },
+  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.4.0.sql", mode = "755" },
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit.control", dest = "/usr/share/pgsql/extension/pg_idkit.control", mode = "755" },
 ]
 requires = { postgresql-server = "> 16", glibc = "*" }
@@ -105,7 +105,7 @@ release = "pg16"
 [package.metadata.generate-rpm.variants.pg17]
 assets = [
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/lib/postgresql/pg_idkit.so", dest = "/usr/lib64/pgsql/pg_idkit.so", mode = "755" },
-  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.3.1.sql", mode = "755" },
+  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.4.0.sql", mode = "755" },
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit.control", dest = "/usr/share/pgsql/extension/pg_idkit.control", mode = "755" },
 ]
 requires = { postgresql-server = "> 17", glibc = "*" }
@@ -114,7 +114,7 @@ release = "pg17"
 [package.metadata.generate-rpm.variants.pg18]
 assets = [
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/lib/postgresql/pg_idkit.so", dest = "/usr/lib64/pgsql/pg_idkit.so", mode = "755" },
-  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.3.1.sql", mode = "755" },
+  { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql", dest = "/usr/share/pgsql/extension/pg_idkit--0.4.0.sql", mode = "755" },
   { source = "/tmp/pg_idkit/rpm/scratch/pgrx-install/share/postgresql/extension/pg_idkit.control", dest = "/usr/share/pgsql/extension/pg_idkit.control", mode = "755" },
 ]
 requires = { postgresql-server = "> 18", glibc = "*" }
diff --git a/Justfile b/Justfile
index 6324cb9..7a998fc 100644
--- a/Justfile
+++ b/Justfile
@@ -71,7 +71,7 @@ _check-installed-version tool msg:
 # Build #
 #########
 
-version := env_var_or_default("VERSION", "0.3.1")
+version := env_var_or_default("VERSION", "0.4.0")
 
 # Print the current version (according to the script)
 [group('meta')]
diff --git a/README.md b/README.md
index 2cd059a..6d21a61 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,7 @@ docker run \
     -e POSTGRES_PASSWORD=replace_this \
     -p 5432 \
     --name pg_idkit \
-    ghcr.io/vadosware/pg_idkit:0.3.1-pg18.0-alpine3.22.2-amd64
+    ghcr.io/vadosware/pg_idkit:0.4.0-pg18.0-alpine3.22.2-amd64
 ```
 
 > [!WARNING]
@@ -110,10 +110,10 @@ cargo install cargo-get cargo-pgrx just
 just package
 ```
 
-After running these commands you should see the following directory structure in `target/release/pg_idkit-pg17`:
+After running these commands you should see the following directory structure in `target/release/pg_idkit-pg18`:
 
 ```
-target/release/pg_idkit-pg17
+target/release/pg_idkit-pg18
 ├── home
 │   └── <user>
 │       └── .pgrx
@@ -125,7 +125,7 @@ target/release/pg_idkit-pg17
 │                   └── share
 │                       └── postgresql
 │                           └── extension
-│                               ├── pg_idkit--0.3.1.sql
+│                               ├── pg_idkit--0.4.0.sql
 │                               └── pg_idkit.control
 └── usr
     ├── lib
@@ -144,7 +144,7 @@ As the installation of the extension into a specific version of postgres uses yo
 In the example above, the [files you need for a Postgres extension][pg-ext-files] are:
 
 - `target/release/home/<user>/.pgrx/18.0/pgrx-install/lib/postgresql/pg_idkit.so`
-- `target/release/home/<user>/.pgrx/18.0/pgrx-install/share/postgresql/extension/pg_idkit--0.3.1.sql`
+- `target/release/home/<user>/.pgrx/18.0/pgrx-install/share/postgresql/extension/pg_idkit--0.4.0.sql`
 - `target/release/home/<user>/.pgrx/18.0/pgrx-install/share/postgresql/extension/pg_idkit.control`
 
 Install these files in the relevant folders for your Postgres installation -- note that exactly where these files should go can can differ across linux distributions and containerized environments.
@@ -191,7 +191,7 @@ docker run \
     -e POSTGRES_PASSWORD=replace_this \
     -p 5432 \
     --name pg_idkit \
-    ghcr.io/vadosware/pg_idkit:0.3.1-pg18.0-alpine3.22.2-amd64
+    ghcr.io/vadosware/pg_idkit:0.4.0-pg18.0-alpine3.22.2-amd64
 ```
 
 From another terminal, you can exec into the `pg_idkit` container and enable `pg_idkit`:
@@ -228,10 +228,10 @@ RPMs are produced upon [every official release](/releases) of `pg_idkit`.
 
 Grab a released version of the RPM (or build one yourself by running `just build-rpm` after [setting up local development][guide-localdev]).
 
-For example, with an RPM named `pg_idkit-0.3.1-pg17.x86_64.rpm`, you should be able to run:
+For example, with an RPM named `pg_idkit-0.4.0-pg18.x86_64.rpm`, you should be able to run:
 
 ```
-dnf install pg_idkit-0.3.1-pg17.x86_64.rpm
+dnf install pg_idkit-0.4.0-pg18.x86_64.rpm
 ```
 
 </details>