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💥 BREAKING CHANGES 💥

• Minimum supported Node.js version is now 20.18.0

• Default exports are no longer available. See usage instructions for details on proper import syntax.

• ResultFormatter is no longer synchronous and can now return a Promise.

• Adoption of prettier@3 requires some versions of Node to be executed with the --experimental-vm-modules option. E.g. NODE_OPTIONS="--no-warnings --experimental-vm-modules" npx jest.

• Attempting to install babel-plugin-tester alongside jest@<30 will cause NPM to fail with ERESOLVE. This is because only jest@>=30 (jest-snapshot) supports the prettier@3 asynchronous interface.

✨ Features

• Allow testing entire babel transform result via outputRaw (e9d5aa1) ^{see #186}
• Support collapsing/overwriting technically-illegal duplicate plugin/preset PluginItems (bf0a088)
• Upgrade to prettier@3 (3334248)

🪄 Fixes

• readme: use proper codecov coverage badge (1047e5c)

⚙️ Build System

• Adopt @-xun/symbiote (89ec951)
• deps: bump core-js from 3.40.0 to 3.42.0 (879dd6b)
• deps: bump core-js from 3.42.0 to 3.43.0 (7590b87)
• deps: bump debug from 4.4.0 to 4.4.1 (3c2538c)
• deps: bump prettier from 3.4.2 to 3.5.3 (e0a29da)
• deps: bump pretty-format from 29.7.0 to 30.0.0 (7ea13c3)
• deps: bump rejoinder from 1.2.5 to 2.0.1 (76dcccd)
• deps: bump type-fest from 4.32.0 to 4.41.0 (bcbb568)
• package: be more selective about which files are included during docs generation (cbb4215)
• package: bump minimum supported node versions to maintained (ee6f7da)
• release: add "master" branch to release branches (03734ea)
• Upgrade typescript-babel toolchain to nodenext (d0b722f)

🧙🏿 Refactored

• src: deprecated default exports are no longer available (b02d4f0)