9.0.0 (2025-11-13)

This was released as a new major version out of abundance of caution, we don't expect any breakages.

main changes

• Migrate to ESLint v9 (#5841)

dependencies

• Updated: dependency @mdn/browser-compat-data to 7.1.21 (#5849)
• Updated: dependency addons-scanner-utils to 9.14.0 (#5840)
• Updated: dependency eslint-visitor-keys to 5.0.0 (#5848)
• Updated: dependency espree to 11.0.0 (#5847)
• Updated: dependency pino to 10.1.0 (#5824)

dev dependencies

• Updated: dependency @babel/core to 7.28.5 (#5833)
• Updated: dependency @babel/eslint-parser to 7.28.5 (#5831)
• Updated: dependency @babel/preset-env to 7.28.5 (#5832)
• Updated: dependency eslint-config-amo to 6.1.0 (#5837)

others

• sync package-lock.json file with master (#5850)