ESLint 10.9.1

Let's Not Get Carried Away

ESLint 10.9.1 is a quiet patch release, and that is mostly the point. Released on August 24, 2026, it does not rewrite the rule engine or promise any headline feature. It clears up one false positive and nudges the docs. If you were hoping for drama, this is not the release.

What Actually Changed

• no-loss-of-precision - A false positive with trailing decimal points is gone. A literal ending in a decimal point no longer gets flagged when it should not.
• Docs - Added deprecation steps for end-of-life package versions, so maintainers have a clearer path for retiring old configs.
• Chores - Ecosystem plugins were refreshed, and the ESLint Bot bumped the CI dependencies.

What To Watch For

This is the kind of patch that quietly improves your lint results without changing your config. The no-loss-of-precision fix is the one real behavioral change, and it only removes an incorrect warning rather than adding a new one, so the risk here is minimal. If you rely on that rule, an upgrade is low-cost and worthwhile.

Just keep an eye on the ecosystem plugin updates bundled into the chore commit. They can reshuffle behavior in subtle ways when your config depends on a plugin you have pinned for a while.