diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6f995a..a967665 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file. The format
 
 ## [Unreleased]
 
+## [0.5.0] - 2026-05-06
+
+First tagged release. Feature-complete for the v1 candidate: DAISY 2.02 → EPUB 3 conversion with Media Overlays, EPUBCheck-clean output, ACE accessibility validation, MP3 → Opus audio recompression, local Whisper transcription with prose-shaped paragraph cleanup, automatic and explicit cover lookup, parallel batch conversion, JSON output for CI/pipeline use. No API stability commitment yet — that comes with 1.0.
+
 ### Added
 
 - `dpub convert --rights "<text>"` stamps a free-text `<dc:rights>` element into the EPUB's OPF metadata. When the flag is omitted, the source DAISY's `dc:rights` (if present in the NCC) carries through; the flag overrides. Useful for explicitly asserting copyright frame (Marrakesh Treaty / EU accessibility exception, etc.) when the source doesn't carry one. Closes #21.
diff --git a/Cargo.lock b/Cargo.lock
index c7e06f0..e5e6e5f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -319,7 +319,7 @@ dependencies = [
 
 [[package]]
 name = "dpub-audio"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "tempfile",
  "thiserror 1.0.69",
@@ -328,7 +328,7 @@ dependencies = [
 
 [[package]]
 name = "dpub-cli"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "anyhow",
  "clap",
@@ -347,7 +347,7 @@ dependencies = [
 
 [[package]]
 name = "dpub-convert"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "chrono",
  "dpub-audio",
@@ -365,7 +365,7 @@ dependencies = [
 
 [[package]]
 name = "dpub-core"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "dpub-util",
  "quick-xml",
@@ -375,7 +375,7 @@ dependencies = [
 
 [[package]]
 name = "dpub-meta"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "serde",
  "serde_json",
@@ -385,11 +385,11 @@ dependencies = [
 
 [[package]]
 name = "dpub-util"
-version = "0.1.0-dev"
+version = "0.5.0"
 
 [[package]]
 name = "dpub-validate"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "epub3-writer",
  "serde",
@@ -401,7 +401,7 @@ dependencies = [
 
 [[package]]
 name = "dpub-whisper"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "rubato",
  "serde",
@@ -433,7 +433,7 @@ checksum = "c7f84e12ccf0a7ddc17a6c41c93326024c42920d7ee630d04950e6926645c0fe"
 
 [[package]]
 name = "epub3-writer"
-version = "0.1.0-dev"
+version = "0.5.0"
 dependencies = [
  "chrono",
  "dpub-util",
diff --git a/Cargo.toml b/Cargo.toml
index 0bdad3a..e45754a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.1.0-dev"
+version = "0.5.0"
 edition = "2024"
 rust-version = "1.88"
 license = "MIT OR Apache-2.0"
diff --git a/crates/dpub-cli/Cargo.toml b/crates/dpub-cli/Cargo.toml
index 25a86c6..503b2ca 100644
--- a/crates/dpub-cli/Cargo.toml
+++ b/crates/dpub-cli/Cargo.toml
@@ -22,10 +22,10 @@ metal = ["dpub-convert/metal"]
 cuda = ["dpub-convert/cuda"]
 
 [dependencies]
-dpub-audio = { path = "../dpub-audio", version = "0.1.0-dev" }
-dpub-core = { path = "../dpub-core", version = "0.1.0-dev" }
-dpub-convert = { path = "../dpub-convert", version = "0.1.0-dev" }
-dpub-validate = { path = "../dpub-validate", version = "0.1.0-dev" }
+dpub-audio = { path = "../dpub-audio", version = "0.5.0" }
+dpub-core = { path = "../dpub-core", version = "0.5.0" }
+dpub-convert = { path = "../dpub-convert", version = "0.5.0" }
+dpub-validate = { path = "../dpub-validate", version = "0.5.0" }
 clap = { workspace = true }
 anyhow = { workspace = true }
 rayon = { workspace = true }
diff --git a/crates/dpub-convert/Cargo.toml b/crates/dpub-convert/Cargo.toml
index 1484e94..7e24b9b 100644
--- a/crates/dpub-convert/Cargo.toml
+++ b/crates/dpub-convert/Cargo.toml
@@ -18,12 +18,12 @@ metal = ["dpub-whisper/metal"]
 cuda = ["dpub-whisper/cuda"]
 
 [dependencies]
-dpub-audio = { path = "../dpub-audio", version = "0.1.0-dev" }
-dpub-core = { path = "../dpub-core", version = "0.1.0-dev" }
-dpub-meta = { path = "../dpub-meta", version = "0.1.0-dev" }
-dpub-util = { path = "../dpub-util", version = "0.1.0-dev" }
-dpub-whisper = { path = "../dpub-whisper", version = "0.1.0-dev" }
-epub3-writer = { path = "../epub3-writer", version = "0.1.0-dev" }
+dpub-audio = { path = "../dpub-audio", version = "0.5.0" }
+dpub-core = { path = "../dpub-core", version = "0.5.0" }
+dpub-meta = { path = "../dpub-meta", version = "0.5.0" }
+dpub-util = { path = "../dpub-util", version = "0.5.0" }
+dpub-whisper = { path = "../dpub-whisper", version = "0.5.0" }
+epub3-writer = { path = "../epub3-writer", version = "0.5.0" }
 thiserror = { workspace = true }
 uuid = { workspace = true }
 chrono = { workspace = true }
diff --git a/crates/dpub-core/Cargo.toml b/crates/dpub-core/Cargo.toml
index 435aa66..764a9c7 100644
--- a/crates/dpub-core/Cargo.toml
+++ b/crates/dpub-core/Cargo.toml
@@ -11,7 +11,7 @@ description = "DAISY 2.02 parser and in-memory model"
 workspace = true
 
 [dependencies]
-dpub-util = { path = "../dpub-util", version = "0.1.0-dev" }
+dpub-util = { path = "../dpub-util", version = "0.5.0" }
 quick-xml = { workspace = true }
 serde = { workspace = true }
 thiserror = { workspace = true }
diff --git a/crates/dpub-validate/Cargo.toml b/crates/dpub-validate/Cargo.toml
index c11542b..d8dcd75 100644
--- a/crates/dpub-validate/Cargo.toml
+++ b/crates/dpub-validate/Cargo.toml
@@ -18,4 +18,4 @@ thiserror = { workspace = true }
 which = { workspace = true }
 
 [dev-dependencies]
-epub3-writer = { path = "../epub3-writer", version = "0.1.0-dev" }
+epub3-writer = { path = "../epub3-writer", version = "0.5.0" }
diff --git a/crates/epub3-writer/Cargo.toml b/crates/epub3-writer/Cargo.toml
index e37e79e..243c47f 100644
--- a/crates/epub3-writer/Cargo.toml
+++ b/crates/epub3-writer/Cargo.toml
@@ -11,7 +11,7 @@ description = "Builder and serialiser for accessible EPUB 3 publications with Me
 workspace = true
 
 [dependencies]
-dpub-util = { path = "../dpub-util", version = "0.1.0-dev" }
+dpub-util = { path = "../dpub-util", version = "0.5.0" }
 zip = { workspace = true }
 chrono = { workspace = true }
 uuid = { workspace = true }