v2.2.1

New features

• support mixed natoms training by @njzjz in #2366
• support mixed systems training by @njzjz in #2372

Enhancement

• link op library with protobuf by @njzjz in #2391

CICD

• Bump actions/checkout from 2 to 3 by @dependabot in #2381
• Bump pypa/cibuildwheel from 2.11.3 to 2.12.1 by @dependabot in #2382
• Bump docker/metadata-action from 3.3.0 to 4.3.0 by @dependabot in #2383
• Bump actions/upload-artifact from 2 to 3 by @dependabot in #2384
• Bump docker/build-push-action from 2.5.0 to 4.0.0 by @dependabot in #2385
• fix the version of pypa/gh-action-pypi-publish by @njzjz in #2389

Bug fixings

• atype_filter should have the shape of nloc by @njzjz in #2390
• Fix incompatibility after fixing the incontinuity of se_atten by @iProzd in #2397
• fix pdf docs by @njzjz in #2401
• clean old handlers before adding new one by @njzjz in #2400

New Contributors

• @dependabot made their first contribution in #2381

Full Changelog: v2.2.0...v2.2.1