diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e6d09c9..5b9aa0d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,16 @@
+### Unreleased [[code][c-unreleased], [diff][d-unreleased]]
+
+[c-unreleased]: https://github.com/json5/json5/tree/master
+[d-unreleased]: https://github.com/json5/json5/compare/v2.2.0...HEAD
+
+### v2.2.0 [[code][c2.2.0], [diff][d2.2.0]]
+
+[c2.2.0]: https://github.com/json5/json5/tree/v2.2.0
+[d2.2.0]: https://github.com/json5/json5/compare/v2.1.3...v2.2.0
+
+- New: Accurate and documented TypeScript declarations are now included. There
+  is no need to install `@types/json5`. ([#236], [#244])
+
 ### v2.1.3 [[code][c2.1.3], [diff][d2.1.3]]
 
 [c2.1.3]: https://github.com/json5/json5/tree/v2.1.3
@@ -342,3 +355,8 @@ parser for the regular JSON format.
 [#196]: https://github.com/json5/json5/issues/196
 [#208]: https://github.com/json5/json5/issues/208
 [#210]: https://github.com/json5/json5/issues/210
+[#222]: https://github.com/json5/json5/issues/222
+[#228]: https://github.com/json5/json5/issues/228
+[#229]: https://github.com/json5/json5/issues/229
+[#236]: https://github.com/json5/json5/issues/236
+[#244]: https://github.com/json5/json5/issues/244
diff --git a/README.md b/README.md
index 4f803270..6049d02c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # JSON5 – JSON for Humans
 
-[![Build Status](https://travis-ci.org/json5/json5.svg)][Build Status]
+[![Build Status](https://travis-ci.com/json5/json5.svg)][Build Status]
 [![Coverage
 Status](https://coveralls.io/repos/github/json5/json5/badge.svg)][Coverage
 Status]
@@ -12,7 +12,7 @@ some productions from [ECMAScript 5.1].
 This JavaScript library is the official reference implementation for JSON5
 parsing and serialization libraries.
 
-[Build Status]: https://travis-ci.org/json5/json5
+[Build Status]: https://travis-ci.com/json5/json5
 
 [Coverage Status]: https://coveralls.io/github/json5/json5
 
diff --git a/lib/index.d.ts b/lib/index.d.ts
new file mode 100644
index 00000000..1c45bca5
--- /dev/null
+++ b/lib/index.d.ts
@@ -0,0 +1,4 @@
+import parse = require('./parse')
+import stringify = require('./stringify')
+
+export {parse, stringify}
diff --git a/lib/parse.d.ts b/lib/parse.d.ts
new file mode 100644
index 00000000..8c8d883a
--- /dev/null
+++ b/lib/parse.d.ts
@@ -0,0 +1,15 @@
+/**
+ * Parses a JSON5 string, constructing the JavaScript value or object described
+ * by the string.
+ * @template T The type of the return value.
+ * @param text The string to parse as JSON5.
+ * @param reviver A function that prescribes how the value originally produced
+ * by parsing is transformed before being returned.
+ * @returns The JavaScript value converted from the JSON5 string.
+ */
+declare function parse<T = any>(
+    text: string,
+    reviver?: ((this: any, key: string, value: any) => any) | null,
+): T
+
+export = parse
diff --git a/lib/stringify.d.ts b/lib/stringify.d.ts
new file mode 100644
index 00000000..3c348389
--- /dev/null
+++ b/lib/stringify.d.ts
@@ -0,0 +1,89 @@
+declare type StringifyOptions = {
+    /**
+     * A function that alters the behavior of the stringification process, or an
+     * array of String and Number objects that serve as a allowlist for
+     * selecting/filtering the properties of the value object to be included in
+     * the JSON5 string. If this value is null or not provided, all properties
+     * of the object are included in the resulting JSON5 string.
+     */
+    replacer?:
+        | ((this: any, key: string, value: any) => any)
+        | (string | number)[]
+        | null
+
+    /**
+     * A String or Number object that's used to insert white space into the
+     * output JSON5 string for readability purposes. If this is a Number, it
+     * indicates the number of space characters to use as white space; this
+     * number is capped at 10 (if it is greater, the value is just 10). Values
+     * less than 1 indicate that no space should be used. If this is a String,
+     * the string (or the first 10 characters of the string, if it's longer than
+     * that) is used as white space. If this parameter is not provided (or is
+     * null), no white space is used. If white space is used, trailing commas
+     * will be used in objects and arrays.
+     */
+    space?: string | number | null
+
+    /**
+     * A String representing the quote character to use when serializing
+     * strings.
+     */
+    quote?: string | null
+}
+
+/**
+ * Converts a JavaScript value to a JSON5 string.
+ * @param value The value to convert to a JSON5 string.
+ * @param replacer A function that alters the behavior of the stringification
+ * process. If this value is null or not provided, all properties of the object
+ * are included in the resulting JSON5 string.
+ * @param space A String or Number object that's used to insert white space into
+ * the output JSON5 string for readability purposes. If this is a Number, it
+ * indicates the number of space characters to use as white space; this number
+ * is capped at 10 (if it is greater, the value is just 10). Values less than 1
+ * indicate that no space should be used. If this is a String, the string (or
+ * the first 10 characters of the string, if it's longer than that) is used as
+ * white space. If this parameter is not provided (or is null), no white space
+ * is used. If white space is used, trailing commas will be used in objects and
+ * arrays.
+ * @returns The JSON5 string converted from the JavaScript value.
+ */
+declare function stringify(
+    value: any,
+    replacer?: ((this: any, key: string, value: any) => any) | null,
+    space?: string | number | null,
+): string
+
+/**
+ * Converts a JavaScript value to a JSON5 string.
+ * @param value The value to convert to a JSON5 string.
+ * @param replacer An array of String and Number objects that serve as a
+ * allowlist for selecting/filtering the properties of the value object to be
+ * included in the JSON5 string. If this value is null or not provided, all
+ * properties of the object are included in the resulting JSON5 string.
+ * @param space A String or Number object that's used to insert white space into
+ * the output JSON5 string for readability purposes. If this is a Number, it
+ * indicates the number of space characters to use as white space; this number
+ * is capped at 10 (if it is greater, the value is just 10). Values less than 1
+ * indicate that no space should be used. If this is a String, the string (or
+ * the first 10 characters of the string, if it's longer than that) is used as
+ * white space. If this parameter is not provided (or is null), no white space
+ * is used. If white space is used, trailing commas will be used in objects and
+ * arrays.
+ * @returns The JSON5 string converted from the JavaScript value.
+ */
+declare function stringify(
+    value: any,
+    replacer: (string | number)[],
+    space?: string | number | null,
+): string
+
+/**
+ * Converts a JavaScript value to a JSON5 string.
+ * @param value The value to convert to a JSON5 string.
+ * @param options An object specifying options.
+ * @returns The JSON5 string converted from the JavaScript value.
+ */
+declare function stringify(value: any, options: StringifyOptions): string
+
+export = stringify
diff --git a/lib/unicode.d.ts b/lib/unicode.d.ts
new file mode 100644
index 00000000..610f8057
--- /dev/null
+++ b/lib/unicode.d.ts
@@ -0,0 +1,3 @@
+export declare const Space_Separator: RegExp
+export declare const ID_Start: RegExp
+export declare const ID_Continue: RegExp
diff --git a/lib/util.d.ts b/lib/util.d.ts
new file mode 100644
index 00000000..a940cead
--- /dev/null
+++ b/lib/util.d.ts
@@ -0,0 +1,5 @@
+export declare function isSpaceSeparator(c?: string): boolean
+export declare function isIdStartChar(c?: string): boolean
+export declare function isIdContinueChar(c?: string): boolean
+export declare function isDigit(c?: string): boolean
+export declare function isHexDigit(c?: string): boolean
diff --git a/package-lock.json b/package-lock.json
index 92d5e881..56c0f4de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "json5",
-  "version": "2.1.3",
+  "version": "2.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 9c5b82ea..31c43e5f 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,12 @@
 {
   "name": "json5",
-  "version": "2.1.3",
+  "version": "2.2.0",
   "description": "JSON for humans.",
   "main": "lib/index.js",
   "module": "dist/index.mjs",
   "bin": "lib/cli.js",
   "browser": "dist/index.js",
+  "types": "lib/index.d.ts",
   "files": [
     "lib/",
     "dist/"
diff --git a/package.json5 b/package.json5
index f3fc10bd..afcfbe26 100644
--- a/package.json5
+++ b/package.json5
@@ -1,12 +1,13 @@
 // This is a generated file. Do not edit.
 {
   name: 'json5',
-  version: '2.1.3',
+  version: '2.2.0',
   description: 'JSON for humans.',
   main: 'lib/index.js',
   module: 'dist/index.mjs',
   bin: 'lib/cli.js',
   browser: 'dist/index.js',
+  types: 'lib/index.d.ts',
   files: [
     'lib/',
     'dist/',