4.9.0 (2020-11-30)

Bug Fixes

• eslint-plugin: [consistent-indexed-object-style] convert readonly index signature to readonly record (#2798) (29428a4)
• eslint-plugin: [consistent-type-imports] crash when using both default and namespace in one import (#2778) (c816b84)
• eslint-plugin: [explicit-module-boundary-types] ignore functions exported within typed object/array literals (#2805) (73a63ee)
• eslint-plugin: [no-use-before-define] allow class references if they're within a class decorator (#2827) (050023a), closes #2842
• eslint-plugin: [triple-slash-reference] fix crash with external module reference (#2788) (32b1b68)
• scope-manager: fix assertion assignments not being marked as write references (#2809) (fa68492), closes #2804
• typescript-estree: add default value for parserOptions.projectFolderIgnoreList and deduplicate resolved projects (#2819) (bf904ec), closes #2418 #2814

Features

• eslint-plugin: [naming-convention] add requireDouble, allowDouble, allowSingleOrDouble options for underscores (#2812) (dd0576a)
• eslint-plugin: [naming-convention] add requiresQuotes modifier (#2813) (6fc8409), closes #2761 #1483
• eslint-plugin: [naming-convention] add modifier unused (#2810) (6a06944)
• eslint-plugin: [naming-convention] add modifiers exported, global, and destructured (#2808) (fb254a1), closes #2239 #2512 #2318 #2802
• eslint-plugin: [naming-convention] allow destructured modifier for parameter selector (#2829) (525d2ff), closes #2828
• eslint-plugin: [naming-convention] split property and method selectors into more granular classXXX, objectLiteralXXX, typeXXX (#2807) (665b6d4), closes #1477 #2802
• eslint-plugin: [no-unused-vars] fork the base rule (#2768) (a8227a6), closes #2782 #2714 #2648
• eslint-plugin: [unbound-method] add support for methods with a this: void parameter (#2796) (878dd4a)