babel-compat-data, babel-helper-compilation-targets, babel-preset-env
- #15727 Add opera mobile compat data (@JLHwung)
babel-plugin-transform-optional-chaining
- #15739 Fix transform of delete a?.b in function params (@nicolo-ribaudo)
babel-helper-split-export-declaration, babel-plugin-transform-modules-commonjs
- #15736 fix: Default export for duplicate names (@liuxingbaoyu)
babel-compat-data, babel-preset-env
- #15726 update compat-data sources (@JLHwung)
babel-helpers, babel-plugin-proposal-explicit-resource-management, babel-runtime-corejs3, babel-runtime
- #15705 Fix handling of sync error in @@asyncDispose (@nicolo-ribaudo)
babel-standalone
- #15707 fix: Support transforming Explicit Resource Management in stage-2 (@liuxingbaoyu)
babel-core
- #15626 fix: Works correctly with --frozen-intrinsics (@liuxingbaoyu)

babel-helper-create-class-features-plugin, babel-plugin-transform-classes
- #15700 Minor class transform cleanups (@JLHwung)

babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-transform-class-properties, babel-plugin-transform-optional-chaining, babel-plugin-transform-typescript
- #15740 Compress output for optional chain with multiple ?. (@nicolo-ribaudo)
babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-optional-chaining, babel-plugin-transform-private-property-in-object, babel-traverse
- #15741 Inject tmp vars in the params list of IIFEs when possible (@nicolo-ribaudo)