chore: release

[hugrbot]

This release fixes multiple inconsistencies between the serialization formats
and improves the error messages when loading unsupported envelopes.

We now also support nodes with up to 2^32 connections to the same port (up from 2^16).

---

🤖 New release

• hugr-model: 0.21.0 -> 0.22.0 (✓ API compatible changes)
• hugr-core: 0.21.0 -> 0.22.0 (✓ API compatible changes)
• hugr-llvm: 0.21.0 -> 0.22.0 (✓ API compatible changes)
• hugr-passes: 0.21.0 -> 0.22.0 (✓ API compatible changes)
• hugr-persistent: 0.1.0 -> 0.2.0 (✓ API compatible changes)
• hugr: 0.21.0 -> 0.22.0 (✓ API compatible changes)
• hugr-cli: 0.21.0 -> 0.22.0 (✓ API compatible changes)

Changelog

hugr-model

0.22.0 - 2025-07-24

New Features

• Names of private functions become core.title metadata. (#2448)
• include generator metatada in model import and cli validate errors (#2452)
• Version number in hugr binary format. (#2468)
• Use semver crate for -model version, and include in docs (#2471)

hugr-core

0.22.0 - 2025-07-24

Bug Fixes

• Ensure SumTypes have the same json encoding in -rs and -py (#2465)

New Features

• Export entrypoint metadata in Python and fix bug in import (#2434)
• Names of private functions become core.title metadata. (#2448)
• [breaking] Use binary envelopes for operation lower_func encoding (#2447)
• [breaking] Update portgraph dependency to 0.15 (#2455)
• Detect and fail on unrecognised envelope flags (#2453)
• include generator metatada in model import and cli validate errors (#2452)
• [breaking] Add insert_region to HugrMut (#2463)
• Non-region entrypoints in hugr-model. (#2467)

hugr-llvm

0.21.0 - 2025-07-09

New Features

• [breaking] No nested FuncDefns (or AliasDefns) (#2256)
• [breaking] Split TypeArg::Sequence into tuples and lists. (#2140)
• [breaking] More helpful error messages in model import (#2272)
• [breaking] Merge TypeParam and TypeArg into one Term type in Rust (#2309)
• Add MakeError op (#2377)

hugr-passes

0.22.0 - 2025-07-24

New Features

• ReplaceTypes allows linearizing inside Op replacements (#2435)
• Add pass for DFG inlining (#2460)

hugr-persistent

0.2.0 - 2025-07-24

New Features

• [breaking] Update portgraph dependency to 0.15 (#2455)

hugr

0.22.0 - 2025-07-24

Bug Fixes

• Ensure SumTypes have the same json encoding in -rs and -py (#2465)

New Features

• ReplaceTypes allows linearizing inside Op replacements (#2435)
• Add pass for DFG inlining (#2460)
• Export entrypoint metadata in Python and fix bug in import (#2434)
• Names of private functions become core.title metadata. (#2448)
• [breaking] Use binary envelopes for operation lower_func encoding (#2447)
• [breaking] Update portgraph dependency to 0.15 (#2455)
• Detect and fail on unrecognised envelope flags (#2453)
• include generator metatada in model import and cli validate errors (#2452)
• [breaking] Add insert_region to HugrMut (#2463)
• Non-region entrypoints in hugr-model. (#2467)

hugr-cli

0.22.0 - 2025-07-24

New Features

• include generator metatada in model import and cli validate errors (#2452)

---

This PR was generated with release-plz.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.62%. Comparing base (6da7643) to head (5ee5bbb).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2476   +/-   ##
=======================================
  Coverage   82.62%   82.62%           
=======================================
  Files         250      250           
  Lines       46471    46471           
  Branches    42040    42040           
=======================================
  Hits        38397    38397           
  Misses       6025     6025           
  Partials     2049     2049           

Flag	Coverage Δ
python	91.31% <ø> (ø)
rust	81.71% <ø> (ø)

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