diff --git a/hugr-cli/CHANGELOG.md b/hugr-cli/CHANGELOG.md
index 54b673de2a..12303c55bc 100644
--- a/hugr-cli/CHANGELOG.md
+++ b/hugr-cli/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Changelog
 
+
 ## 0.4.0 (2024-08-12)
 
 ### Features
diff --git a/hugr-cli/Cargo.toml b/hugr-cli/Cargo.toml
index 275dadd3aa..800ed69d6b 100644
--- a/hugr-cli/Cargo.toml
+++ b/hugr-cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hugr-cli"
-version = "0.4.0"
+version = "0.4.1"
 edition = { workspace = true }
 rust-version = { workspace = true }
 license = { workspace = true }
@@ -15,7 +15,7 @@ categories = ["compilers"]
 [dependencies]
 clap = { workspace = true, features = ["derive"] }
 clap-verbosity-flag.workspace = true
-hugr-core = { path = "../hugr-core", version = "0.8.0" }
+hugr-core = { path = "../hugr-core", version = "0.9.0" }
 serde_json.workspace = true
 serde.workspace = true
 thiserror.workspace = true
diff --git a/hugr-core/CHANGELOG.md b/hugr-core/CHANGELOG.md
index 69175e8cab..8860bceec0 100644
--- a/hugr-core/CHANGELOG.md
+++ b/hugr-core/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.9.0 (2024-08-14)
+
+### Refactor
+
+- [**breaking**] Flatten `CustomOp` in to `OpType` ([#1429](https://github.com/CQCL/hugr/pull/1429))
+
+
 ## 0.8.0 (2024-08-12)
 
 ### Bug Fixes
diff --git a/hugr-core/Cargo.toml b/hugr-core/Cargo.toml
index c52e4f06ea..b4153059ab 100644
--- a/hugr-core/Cargo.toml
+++ b/hugr-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hugr-core"
-version = "0.8.0"
+version = "0.9.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 
diff --git a/hugr-passes/CHANGELOG.md b/hugr-passes/CHANGELOG.md
index 43febac0f0..8852566ed4 100644
--- a/hugr-passes/CHANGELOG.md
+++ b/hugr-passes/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.8.0 (2024-08-14)
+
+### Refactor
+
+- [**breaking**] Flatten `CustomOp` in to `OpType` ([#1429](https://github.com/CQCL/hugr/pull/1429))
+
+
 ## 0.7.0 (2024-08-12)
 
 ### Features
diff --git a/hugr-passes/Cargo.toml b/hugr-passes/Cargo.toml
index a839afa488..efb83e11ab 100644
--- a/hugr-passes/Cargo.toml
+++ b/hugr-passes/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hugr-passes"
-version = "0.7.0"
+version = "0.8.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 license = { workspace = true }
@@ -13,7 +13,7 @@ keywords = ["Quantum", "Quantinuum"]
 categories = ["compilers"]
 
 [dependencies]
-hugr-core = { path = "../hugr-core", version = "0.8.0" }
+hugr-core = { path = "../hugr-core", version = "0.9.0" }
 itertools = { workspace = true }
 lazy_static = { workspace = true }
 paste = { workspace = true }
diff --git a/hugr/CHANGELOG.md b/hugr/CHANGELOG.md
index 3bfbcf0218..5800d8ea1b 100644
--- a/hugr/CHANGELOG.md
+++ b/hugr/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.12.0 (2024-08-14)
+
+### Refactor
+
+- [**breaking**] Flatten `CustomOp` in to `OpType` ([#1429](https://github.com/CQCL/hugr/pull/1429))
+
+
 ## 0.11.0 (2024-08-12)
 
 ### Bug Fixes
diff --git a/hugr/Cargo.toml b/hugr/Cargo.toml
index 2ca3b329dc..e13ddcba38 100644
--- a/hugr/Cargo.toml
+++ b/hugr/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hugr"
-version = "0.11.0"
+version = "0.12.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 
@@ -26,8 +26,8 @@ extension_inference = ["hugr-core/extension_inference"]
 declarative = ["hugr-core/declarative"]
 
 [dependencies]
-hugr-core = { path = "../hugr-core", version = "0.8.0" }
-hugr-passes = { path = "../hugr-passes", version = "0.7.0" }
+hugr-core = { path = "../hugr-core", version = "0.9.0" }
+hugr-passes = { path = "../hugr-passes", version = "0.8.0" }
 
 [dev-dependencies]
 rstest = { workspace = true }