Added release blog post for v8.40.0

src/content/blog/2023-05-05-eslint-v8.40.0-released.md

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+---
+layout: post
+title: ESLint v8.40.0 released
+teaser: "We just pushed ESLint v8.40.0, which is a minor release upgrade of ESLint. This release adds some new features and fixes several bugs found in the previous release."
+image: release-notes-minor.png
+draft: true
+authors:
+  - eslintbot
+categories:
+  - Release Notes
+tags:
+  - Release
+---
+
+
+
+
+
+
+
+
+## Features
+
+
+* [`5db7808`](https://github.com/eslint/eslint/commit/5db7808139c1f2172797285a0700f01644bda254) feat: improve flat config errors for invalid rule options and severities ([#17140](https://github.com/eslint/eslint/issues/17140)) (Josh Goldberg ✨)
+* [`f5574dc`](https://github.com/eslint/eslint/commit/f5574dc739fcc74a7841217ba1f31cce02bee1ff) feat: Add findConfigFile() method to FlatESLint ([#17142](https://github.com/eslint/eslint/issues/17142)) (Nicholas C. Zakas)
+* [`e52b98b`](https://github.com/eslint/eslint/commit/e52b98bf25d882da4efd5559ce5974b6697cf701) feat: add `sourceCode` property to the rule context ([#17107](https://github.com/eslint/eslint/issues/17107)) (Nitin Kumar)
+* [`1468f5b`](https://github.com/eslint/eslint/commit/1468f5b640cfa6fdd8a5ec895337f692def2780b) feat: add `physicalFilename` property to the rule context ([#17111](https://github.com/eslint/eslint/issues/17111)) (Nitin Kumar)
+* [`0df4d4f`](https://github.com/eslint/eslint/commit/0df4d4f658c214e51310a986c03d44d34ceae3ec) feat: add `cwd` to rule context ([#17106](https://github.com/eslint/eslint/issues/17106)) (Nitin Kumar)
+* [`52018f2`](https://github.com/eslint/eslint/commit/52018f21c19b3e461cae32843cddd17ed42f19cd) feat: add `filename` property to the rule context ([#17108](https://github.com/eslint/eslint/issues/17108)) (Nitin Kumar)
+* [`559ff4e`](https://github.com/eslint/eslint/commit/559ff4e4bc54a8b6e6b54825d83c532d724204b3) feat: add new `omitLastInOneLineClassBody` option to the [`semi`](/docs/rules/semi) rule ([#17105](https://github.com/eslint/eslint/issues/17105)) (Nitin Kumar)
+
+
+
+
+
+
+## Bug Fixes
+
+
+* [`f076e54`](https://github.com/eslint/eslint/commit/f076e54ecdb0fae70d9b43ad6888606097beef97) fix: Ensure FlatESLint#findConfigFile() doesn't throw. ([#17151](https://github.com/eslint/eslint/issues/17151)) (Nicholas C. Zakas)
+
+
+
+
+## Documentation
+
+
+* [`e980bf3`](https://github.com/eslint/eslint/commit/e980bf38cf441f2eb29c458b93df77dc0111b391) docs: Update README (GitHub Actions Bot)
+* [`e92a6fc`](https://github.com/eslint/eslint/commit/e92a6fc7ed2a427f5e95f4b3a1c21d71553c97ee) docs: Update README (GitHub Actions Bot)
+* [`af5fe64`](https://github.com/eslint/eslint/commit/af5fe64c398c9bd4206c3c6c1ade81768b291031) docs: Fix custom rule schema docs ([#17115](https://github.com/eslint/eslint/issues/17115)) (Adam Jones)
+* [`4a352a9`](https://github.com/eslint/eslint/commit/4a352a957ba9e721bec9f6f403b419a22b0ec423) docs: explain how to include predefined globals ([#17114](https://github.com/eslint/eslint/issues/17114)) (Marcus Wyatt)
+* [`5ea15d9`](https://github.com/eslint/eslint/commit/5ea15d92ee358e8f3f652c94c019cac96aaec651) docs: add mastodon link in readme ([#17110](https://github.com/eslint/eslint/issues/17110)) (唯然)
+
+
+
+
+
+
+
+
+## Chores
+
+
+* [`4053004`](https://github.com/eslint/eslint/commit/4053004c951813473d1c43f9f9959a9a3484242f) chore: upgrade @eslint/js@8.40.0 ([#17156](https://github.com/eslint/eslint/issues/17156)) (Milos Djermanovic)
+* [`50fed1d`](https://github.com/eslint/eslint/commit/50fed1da4449ad7ecbb558294438273cfce603d4) chore: package.json update for @eslint/js release (ESLint Jenkins)
+* [`4c7a170`](https://github.com/eslint/eslint/commit/4c7a170b04c5a746e401bef7ce79766ff66a1168) chore: upgrade @eslint/eslintrc@2.0.3 ([#17155](https://github.com/eslint/eslint/issues/17155)) (Milos Djermanovic)
+* [`e80b7cc`](https://github.com/eslint/eslint/commit/e80b7cce640b60c00802148dbb51d03c7223afa9) chore: upgrade [email protected] ([#17154](https://github.com/eslint/eslint/issues/17154)) (Milos Djermanovic)
+* [`ce3ac91`](https://github.com/eslint/eslint/commit/ce3ac91b510576e2afba1657aa5f09e162b4ab07) chore: upgrade [email protected] ([#17153](https://github.com/eslint/eslint/issues/17153)) (Milos Djermanovic)
+* [`9094d79`](https://github.com/eslint/eslint/commit/9094d79fb42c0ebb6100426a3f2f851e8d42a0ee) chore: add `latest/` to `meta.docs.url` in all core rules ([#17136](https://github.com/eslint/eslint/issues/17136)) (Milos Djermanovic)
+* [`d85efad`](https://github.com/eslint/eslint/commit/d85efad655deacc0dc3fdbbace33307094c3b91b) perf: don't use `grapheme-splitter` on ASCII strings in [key-spacing](/docs/rules/key-spacing) rule ([#17122](https://github.com/eslint/eslint/issues/17122)) (Milos Djermanovic)
+
+