diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b3804a..62f594e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ The long form, with what was wrong before and how it was found, is in
 
 ## [Unreleased]
 
+## [0.4.0] - 2026-09-11
+
 ### Added
 
 - A Classic theme after the 2004 Mac app, beside Dark and Light: brushed-metal toolbar, Aqua
@@ -197,7 +199,8 @@ The long form, with what was wrong before and how it was found, is in
 - Torrent enclosures through librqbit, seeding to a ratio or a time, with a stall timeout.
 - `ipx import` and `ipx export` for OPML, and systemd units in `contrib/`.
 
-[unreleased]: https://git.sdf1.net/rays/ipodderx-rs/compare/v0.3.0...main
+[unreleased]: https://git.sdf1.net/rays/ipodderx-rs/compare/v0.4.0...main
+[0.4.0]: https://git.sdf1.net/rays/ipodderx-rs/compare/v0.3.0...v0.4.0
 [0.3.0]: https://git.sdf1.net/rays/ipodderx-rs/compare/v0.2.0...v0.3.0
 [0.2.0]: https://git.sdf1.net/rays/ipodderx-rs/compare/v0.1.0...v0.2.0
 [0.1.0]: https://git.sdf1.net/rays/ipodderx-rs/releases/tag/v0.1.0
diff --git a/Cargo.lock b/Cargo.lock
index f2119b0..3f6be29 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1634,7 +1634,7 @@ checksum = "791930b43c0d5973160d90a8f3894509f2b273430f5c5c73b668636d0287c5c0"
 
 [[package]]
 name = "ipx"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "ammonia",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index 3d1691d..2447ec3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ipx"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2024"
 
 [dependencies]