chore: release

hugr-cli/CHANGELOG.md

@@ -1,6 +1,17 @@
 # Changelog
 
 
+## [0.27.0](https://github.com/Quantinuum/hugr/compare/hugr-cli-v0.26.1...hugr-cli-v0.27.0) - 2026-03-31
+
+### Bug Fixes
+
+- Do extension resolution on exts loaded by hugr-cli ([#2987](https://github.com/Quantinuum/hugr/pull/2987))
+
+### New Features
+
+- *(py)* Allow missing ext versions ExtensionDesc metadata ([#2979](https://github.com/Quantinuum/hugr/pull/2979))
+- [**breaking**] Deprecate JSON serialization format ([#2991](https://github.com/Quantinuum/hugr/pull/2991))
+
 ## [0.26.0](https://github.com/Quantinuum/hugr/compare/hugr-cli-v0.25.7...hugr-cli-v0.26.0) - 2026-03-16
 
 ### Documentation

hugr-cli/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hugr-cli"
-version = "0.26.1"
+version = "0.27.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 license = { workspace = true }
@@ -23,7 +23,7 @@ tracing = ["dep:tracing", "dep:tracing-subscriber"]
 clap = { workspace = true, features = ["derive", "cargo"] }
 clap-verbosity-flag.workspace = true
 derive_more = { workspace = true, features = ["display", "error", "from"] }
-hugr = { path = "../hugr", version = "0.26.1" }
+hugr = { path = "../hugr", version = "0.27.0" }
 serde_json.workspace = true
 serde = { workspace = true, features = ["derive"] }
 clio = { workspace = true, features = ["clap-parse"] }

hugr-core/CHANGELOG.md

@@ -1,6 +1,24 @@
 # Changelog
 
 
+## [0.27.0](https://github.com/Quantinuum/hugr/compare/hugr-core-v0.26.1...hugr-core-v0.27.0) - 2026-03-31
+
+### Bug Fixes
+
+- Use valid identifiers when constructing AST model ([#2973](https://github.com/Quantinuum/hugr/pull/2973))
+- Panic on constant folding with opaque consts ([#2986](https://github.com/Quantinuum/hugr/pull/2986))
+
+### New Features
+
+- *(py)* Allow missing ext versions ExtensionDesc metadata ([#2979](https://github.com/Quantinuum/hugr/pull/2979))
+- [**breaking**] Deprecate JSON serialization format ([#2991](https://github.com/Quantinuum/hugr/pull/2991))
+- [**breaking**] Bump public `portgraph` dependency to `0.16.0` ([#2998](https://github.com/Quantinuum/hugr/pull/2998))
+
+### Refactor
+
+- Simplify validate_subtree ([#2969](https://github.com/Quantinuum/hugr/pull/2969))
+- further cleanups to SiblingSubgraph + generalize over trait HugrConvexChecker ([#2957](https://github.com/Quantinuum/hugr/pull/2957))
+
 ## [0.26.1](https://github.com/Quantinuum/hugr/compare/hugr-core-v0.26.0...hugr-core-v0.26.1) - 2026-03-18
 
 ### New Features

hugr-core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hugr-core"
-version = "0.26.1"
+version = "0.27.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 
@@ -28,7 +28,7 @@ bench = false
 name = "model"
 
 [dependencies]
-hugr-model = { version = "0.26.1", path = "../hugr-model" }
+hugr-model = { version = "0.27.0", path = "../hugr-model" }
 
 cgmath = { workspace = true, features = ["serde"] }
 delegate = { workspace = true }

hugr-llvm/CHANGELOG.md

@@ -1,6 +1,12 @@
 # Changelog
 
 
+## [0.27.0](https://github.com/Quantinuum/hugr/compare/hugr-llvm-v0.26.1...hugr-llvm-v0.27.0) - 2026-03-31
+
+### New Features
+
+- *(hugr-llvm)* Emit rounding operation for `FloatOps::fround` extension ops ([#2949](https://github.com/Quantinuum/hugr/pull/2949))
+
 ## [0.26.0](https://github.com/Quantinuum/hugr/compare/hugr-llvm-v0.25.7...hugr-llvm-v0.26.0) - 2026-03-16
 
 ### New Features

hugr-llvm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hugr-llvm"
-version = "0.26.1"
+version = "0.27.0"
 description = "A general and extensible crate for lowering HUGRs into LLVM IR"
 
 edition.workspace = true
@@ -26,7 +26,7 @@ workspace = true
 
 [dependencies]
 inkwell = { version = ">=0.7.1, <0.9", default-features = false }
-hugr-core = { path = "../hugr-core", version = "0.26.1" }
+hugr-core = { path = "../hugr-core", version = "0.27.0" }
 anyhow.workspace = true
 itertools.workspace = true
 delegate.workspace = true

hugr-model/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hugr-model"
-version = "0.26.1"
+version = "0.27.0"
 readme = "README.md"
 documentation = "https://docs.rs/hugr-model/"
 description = "Data model for Quantinuum's HUGR intermediate representation"

hugr-persistent/CHANGELOG.md

@@ -1,6 +1,12 @@
 # Changelog
 
 
+## [0.6.0](https://github.com/Quantinuum/hugr/compare/hugr-persistent-v0.5.1...hugr-persistent-v0.6.0) - 2026-03-31
+
+### New Features
+
+- [**breaking**] Deprecate JSON serialization format ([#2991](https://github.com/Quantinuum/hugr/pull/2991))
+
 ## [0.5.0](https://github.com/Quantinuum/hugr/compare/hugr-persistent-v0.4.7...hugr-persistent-v0.5.0) - 2026-03-16
 
 ### New Features

hugr-persistent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hugr-persistent"
-version = "0.5.1"
+version = "0.6.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 license = { workspace = true }
@@ -16,7 +16,7 @@ categories = ["compilers"]
 name = "persistent_walker_example"
 
 [dependencies]
-hugr-core = { path = "../hugr-core", version = "0.26.1" }
+hugr-core = { path = "../hugr-core", version = "0.27.0" }
 
 derive_more = { workspace = true, features = [
     "display",

hugr-py/Cargo.toml

@@ -21,9 +21,9 @@ bench = false
 
 [dependencies]
 bumpalo = { workspace = true, features = ["collections"] }
-hugr-core = { version = "0.26.1", path = "../hugr-core", default-features = false }
-hugr-cli = { version = "0.26.1", path = "../hugr-cli", default-features = false }
-hugr-model = { version = "0.26.1", path = "../hugr-model", default-features = false, features = [
+hugr-core = { version = "0.27.0", path = "../hugr-core", default-features = false }
+hugr-cli = { version = "0.27.0", path = "../hugr-cli", default-features = false }
+hugr-model = { version = "0.27.0", path = "../hugr-model", default-features = false, features = [
     "pyo3",
 ] }
 pastey.workspace = true

hugr/CHANGELOG.md

@@ -1,5 +1,29 @@
 # Changelog
 
+## [0.27.0](https://github.com/Quantinuum/hugr/compare/hugr-v0.26.1...hugr-v0.27.0) - 2026-03-31
+
+This release deprecates the JSON serialization format. Now hugrs can be encoded in a readable file
+using the S-expressions format instead.
+
+The release contains multiple bug fixes, including a breaking version bump for
+the public `portgraph` dependency.
+
+### Bug Fixes
+
+- Use valid identifiers when constructing AST model ([#2973](https://github.com/Quantinuum/hugr/pull/2973))
+- Panic on constant folding with opaque consts ([#2986](https://github.com/Quantinuum/hugr/pull/2986))
+
+### New Features
+
+- *(py)* Allow missing ext versions ExtensionDesc metadata ([#2979](https://github.com/Quantinuum/hugr/pull/2979))
+- [**breaking**] Bump public `portgraph` dependency to `0.16.0` ([#2998](https://github.com/Quantinuum/hugr/pull/2998))
+- [**breaking**] Deprecate JSON serialization format ([#2991](https://github.com/Quantinuum/hugr/pull/2991))
+
+### Refactor
+
+- Simplify validate_subtree ([#2969](https://github.com/Quantinuum/hugr/pull/2969))
+- further cleanups to SiblingSubgraph + generalize over trait HugrConvexChecker ([#2957](https://github.com/Quantinuum/hugr/pull/2957))
+
 ## [0.26.1](https://github.com/Quantinuum/hugr/compare/hugr-v0.26.0...hugr-v0.26.1) - 2026-03-18
 
 ### Bug Fixes

hugr/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hugr"
-version = "0.26.1"
+version = "0.27.0"
 edition = { workspace = true }
 rust-version = { workspace = true }
 
@@ -31,10 +31,10 @@ zstd = ["hugr-core/zstd"]
 persistent_unstable = ["hugr-persistent"]
 
 [dependencies]
-hugr-model = { path = "../hugr-model", version = "0.26.1" }
-hugr-core = { path = "../hugr-core", version = "0.26.1" }
-hugr-llvm = { path = "../hugr-llvm", version = "0.26.1", optional = true }
-hugr-persistent = { path = "../hugr-persistent", version = "0.5.1", optional = true }
+hugr-model = { path = "../hugr-model", version = "0.27.0" }
+hugr-core = { path = "../hugr-core", version = "0.27.0" }
+hugr-llvm = { path = "../hugr-llvm", version = "0.27.0", optional = true }
+hugr-persistent = { path = "../hugr-persistent", version = "0.6.0", optional = true }
 
 [dev-dependencies]
 serde_json = { workspace = true }