diff --git a/README.es.md b/README.es.md
index b2fa6ae5914f73..5814d19c90c359 100644
--- a/README.es.md
+++ b/README.es.md
@@ -139,7 +139,7 @@ Ve todas las opciones en [dts-gen](https://github.com/microsoft/DefinitelyTyped-
 
 Los miembros de Definitely Typed frecuentemente monitorean nuevos PRs, pero ten en mente que la cantidad de PRs podrían ralentizar el proceso.
 
-Para un buen paquete de ejemplo, vea [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js).
+Para un buen paquete de ejemplo, vea [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js).
 
 #### Remover un paquete
 
diff --git a/README.fr.md b/README.fr.md
index ab3df440cd3e0e..8f2c5e824497e5 100644
--- a/README.fr.md
+++ b/README.fr.md
@@ -202,7 +202,7 @@ Si vous avez des fichiers `.d.ts` en plus de `index.d.ts`, assurez-vous qu'ils s
 
 Les membres de Definitely Typed surveillent régulièrement les nouveaux PRs, bien qu'il faille garder à l'esprit que le nombre d'autres PRs peut ralentir les choses.
 
-Pour un bon exemple de package, voir [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js).
+Pour un bon exemple de package, voir [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js).
 
 #### Supprimer un package
 
diff --git a/README.it.md b/README.it.md
index e749ffb27f94ca..c95f4888a31c8c 100644
--- a/README.it.md
+++ b/README.it.md
@@ -177,7 +177,7 @@ Se hai file `.d.ts` oltre all'`index.d.ts`, assicurati che siano referenziati o
 
 I membri di Definitely Typed controllano continuamente le nuove pull request, perciò sii al corrente che un alto numero di pull request potrebbe rallentarci il lavoro.
 
-Per l'esempio di un buon package, guarda [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js).
+Per l'esempio di un buon package, guarda [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js).
 
 #### Rimuovere un package
 
diff --git a/README.ja.md b/README.ja.md
index 54912b6d6fa540..afb7522f0171fc 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -176,7 +176,7 @@ dts-gen の全オプションは[こちら](https://github.com/microsoft/Definit
 
 Definitely Typed のメンバーは常に新しい PR をチェックしていますが、他の PR の数によっては対応が遅れる場合があることをご了承ください。
 
-[base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js) を、パッケージのサンプルとして参考にするのがよいでしょう。
+[base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js) を、パッケージのサンプルとして参考にするのがよいでしょう。
 
 #### パッケージを削除する
 
diff --git a/README.ko.md b/README.ko.md
index 2c7120f21f1570..c3676e933dc680 100644
--- a/README.ko.md
+++ b/README.ko.md
@@ -160,7 +160,7 @@ npm 에 올라가 있지 않은 패키지를 위한 자료형(Typing) 패키지
 Definitely Typed 의 관리자들이 주기적으로 새로운 풀 리퀘스트(Pull request)들을 확인하기는 하지만,
 다른 풀 리퀘스트(Pull request)가 많을 경우 확인이 느려질 수 있다는 걸 알아주세요.
 
-[base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js) 패키지는 좋은 예시 중 하나입니다.
+[base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js) 패키지는 좋은 예시 중 하나입니다.
 
 #### 패키지 삭제하기
 
diff --git a/README.md b/README.md
index 994458e1d12dbb..b62b8d7fb05fe2 100644
--- a/README.md
+++ b/README.md
@@ -188,7 +188,7 @@ If you have `.d.ts` files besides `index.d.ts`, make sure that they are referenc
 
 Definitely Typed members routinely monitor for new PRs, though keep in mind that the number of other PRs may slow things down.
 
-For a good example package, see [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js).
+For a good example package, see [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js).
 
 #### Removing a package
 
diff --git a/README.pt.md b/README.pt.md
index 3ea9d72f94bc52..bd7cf21fa01da3 100644
--- a/README.pt.md
+++ b/README.pt.md
@@ -152,7 +152,7 @@ Se há outros arquivos `.d.ts` além do arquivo `index.d.ts`, tenha certeza de q
 
 Os membros do Definitely Typed frequentemente monitoram os novos PRs, porém tenha em mente de que a quantidade de PRs pode atrasar o processo.
 
-Para ver um bom exemplo, veja o pacote [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js).
+Para ver um bom exemplo, veja o pacote [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js).
 
 #### Removendo um pacote
 
diff --git a/README.ru.md b/README.ru.md
index 8822bf6d51cf60..01e82f27656ad3 100644
--- a/README.ru.md
+++ b/README.ru.md
@@ -159,7 +159,7 @@ Definitely Typed работает только благодаря вкладу 
 
 Члены группы Definitely Typed регулярно следят за новыми PR, но имейте в виду, что количество других PR может замедлить ход событий.
 
-Хороший пример пакета смотрите [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js).
+Хороший пример пакета смотрите [base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js).
 
 #### Удаление пакета
 
diff --git a/README.zh-Hans.md b/README.zh-Hans.md
index 3fe80ace7d357c..70b460086d5cfb 100644
--- a/README.zh-Hans.md
+++ b/README.zh-Hans.md
@@ -193,7 +193,7 @@ declare module "libname" {
 
 Definitely Typed 的成员会定期查看新的 PR，但是请留意，当 PR 数量过多的时候，检查速度可能会减慢。
 
-如果你想要真实的示例，[base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/base64-js) 是个很好的例子。
+如果你想要真实的示例，[base64-js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/a2ff1d2088143cbacc15786c7f3b0ec67179523c/types/base64-js) 是个很好的例子。
 
 #### 删除软件包
 
diff --git a/notNeededPackages.json b/notNeededPackages.json
index 01cd209033735d..8969045baccc67 100644
--- a/notNeededPackages.json
+++ b/notNeededPackages.json
@@ -5951,6 +5951,10 @@
             "libraryName": "react-vega",
             "asOfVersion": "7.0.0"
         },
+        "react-virtualized-auto-sizer": {
+            "libraryName": "react-virtualized-auto-sizer",
+            "asOfVersion": "1.0.8"
+        },
         "react-visibility-sensor": {
             "libraryName": "react-visibility-sensor",
             "asOfVersion": "5.1.0"
diff --git a/types/dom-mediacapture-record/package.json b/types/dom-mediacapture-record/package.json
index 59f714c6b44615..d51a96a564b41f 100644
--- a/types/dom-mediacapture-record/package.json
+++ b/types/dom-mediacapture-record/package.json
@@ -9,11 +9,6 @@
     ],
     "types": "index",
     "typesVersions": {
-        "<=5.0": {
-            "*": [
-                "ts5.0/*"
-            ]
-        },
         "<=5.6": {
             "*": [
                 "ts5.6/*"
diff --git a/types/dom-mediacapture-record/ts5.0/dom-mediacapture-record-tests.ts b/types/dom-mediacapture-record/ts5.0/dom-mediacapture-record-tests.ts
deleted file mode 100644
index aad35787af3786..00000000000000
--- a/types/dom-mediacapture-record/ts5.0/dom-mediacapture-record-tests.ts
+++ /dev/null
@@ -1,68 +0,0 @@
-const isWebmSupported: boolean = window.MediaRecorder.isTypeSupported(
-    "video/webm",
-);
-
-const mediaStream = new MediaStream();
-
-const mediaRecorderOptions: MediaRecorderOptions = {
-    mimeType: "video/webm",
-    audioBitsPerSecond: 1000000,
-    videoBitsPerSecond: 4000000,
-    audioBitrateMode: "variable",
-};
-
-const blobEvent = new BlobEvent("dataavailable", {
-    data: new Blob(),
-    bubbles: false,
-});
-const errorEvent = new MediaRecorderErrorEvent("error", {
-    error: new DOMException(),
-    bubbles: false,
-});
-
-const onDataAvailable = (event: BlobEvent) => {
-    const blobType = event.data.type;
-};
-
-const onError = (event: Event) => {
-    const errorMessage = (event as MediaRecorderErrorEvent).error.message;
-};
-
-const onEvent = (event: Event) => {};
-
-let recorder = new window.MediaRecorder(mediaStream);
-recorder = new MediaRecorder(mediaStream, mediaRecorderOptions);
-
-recorder.start();
-recorder.stop();
-recorder.start(1000);
-recorder.pause();
-recorder.requestData();
-const state: "inactive" | "recording" | "paused" = recorder.state;
-const isRecording = state === "recording";
-const isAudioVariableBitrate = recorder.audioBitrateMode === "variable";
-
-recorder.addEventListener("start", onEvent);
-recorder.removeEventListener("start", onEvent);
-recorder.dispatchEvent(blobEvent);
-
-recorder.ondataavailable = onDataAvailable;
-recorder.ondataavailable = onEvent;
-recorder.onerror = onError;
-recorder.onpause = onEvent;
-recorder.onresume = onEvent;
-recorder.onstart = onEvent;
-recorder.onstop = onEvent;
-
-recorder.ondataavailable = null;
-recorder.onerror = null;
-recorder.onpause = null;
-recorder.onresume = null;
-recorder.onstart = null;
-recorder.onstop = null;
-
-recorder.addEventListener("dataavailable", (e: BlobEvent) => {});
-recorder.addEventListener("error", (e: Event) => {});
-recorder.addEventListener("pause", onEvent);
-recorder.addEventListener("resume", onEvent);
-recorder.addEventListener("dataavailable", onEvent);
diff --git a/types/dom-mediacapture-record/ts5.0/index.d.ts b/types/dom-mediacapture-record/ts5.0/index.d.ts
deleted file mode 100644
index fed16c76f3df1b..00000000000000
--- a/types/dom-mediacapture-record/ts5.0/index.d.ts
+++ /dev/null
@@ -1,101 +0,0 @@
-interface MediaRecorderErrorEventInit extends EventInit {
-    error: DOMException;
-}
-
-interface MediaRecorderErrorEvent extends Event {
-    readonly error: DOMException;
-}
-
-declare var MediaRecorderErrorEvent: {
-    prototype: MediaRecorderErrorEvent;
-    new(type: string, eventInitDict: MediaRecorderErrorEventInit): MediaRecorderErrorEvent;
-};
-
-interface BlobEventInit extends EventInit {
-    data: Blob;
-    timecode?: number | undefined;
-}
-
-interface BlobEvent extends Event {
-    readonly data: Blob;
-    readonly timecode: DOMHighResTimeStamp;
-}
-
-declare var BlobEvent: {
-    prototype: BlobEvent;
-    new(type: string, eventInitDict: BlobEventInit): BlobEvent;
-};
-
-type BitrateMode = "variable" | "constant";
-
-interface MediaRecorderOptions {
-    mimeType?: string | undefined;
-    audioBitsPerSecond?: number | undefined;
-    videoBitsPerSecond?: number | undefined;
-    bitsPerSecond?: number | undefined;
-    audioBitrateMode?: BitrateMode | undefined;
-}
-
-interface MediaRecorderEventMap {
-    dataavailable: BlobEvent;
-    error: Event;
-    pause: Event;
-    resume: Event;
-    start: Event;
-    stop: Event;
-}
-
-interface MediaRecorder extends EventTarget {
-    readonly stream: MediaStream;
-    readonly mimeType: string;
-    readonly state: "inactive" | "recording" | "paused";
-    readonly videoBitsPerSecond: number;
-    readonly audioBitsPerSecond: number;
-    readonly audioBitrateMode: BitrateMode;
-
-    ondataavailable: ((this: MediaRecorder, event: BlobEvent) => any) | null;
-    onerror: ((this: MediaRecorder, event: Event) => any) | null;
-    onpause: ((this: MediaRecorder, event: Event) => any) | null;
-    onresume: ((this: MediaRecorder, event: Event) => any) | null;
-    onstart: ((this: MediaRecorder, event: Event) => any) | null;
-    onstop: ((this: MediaRecorder, event: Event) => any) | null;
-
-    addEventListener<K extends keyof MediaRecorderEventMap>(
-        type: K,
-        listener: (this: MediaRecorder, ev: MediaRecorderEventMap[K]) => any,
-        options?: boolean | AddEventListenerOptions,
-    ): void;
-    addEventListener(
-        type: string,
-        listener: EventListenerOrEventListenerObject,
-        options?: boolean | AddEventListenerOptions,
-    ): void;
-    removeEventListener<K extends keyof MediaRecorderEventMap>(
-        type: K,
-        listener: (this: MediaRecorder, ev: MediaRecorderEventMap[K]) => any,
-        options?: boolean | EventListenerOptions,
-    ): void;
-    removeEventListener(
-        type: string,
-        listener: EventListenerOrEventListenerObject,
-        options?: boolean | EventListenerOptions,
-    ): void;
-
-    start(timeslice?: number): void;
-    stop(): void;
-    resume(): void;
-    pause(): void;
-    requestData(): void;
-}
-
-declare var MediaRecorder: {
-    prototype: MediaRecorder;
-    new(stream: MediaStream, options?: MediaRecorderOptions): MediaRecorder;
-    isTypeSupported(type: string): boolean;
-};
-
-interface Window {
-    MediaRecorder: typeof MediaRecorder;
-    BlobEvent: typeof BlobEvent;
-    MediaRecorderErrorEvent: typeof MediaRecorderErrorEvent;
-}
diff --git a/types/dom-mediacapture-record/ts5.0/tsconfig.json b/types/dom-mediacapture-record/ts5.0/tsconfig.json
deleted file mode 100644
index 419e660a91ee10..00000000000000
--- a/types/dom-mediacapture-record/ts5.0/tsconfig.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "node16",
-        "lib": [
-            "es6",
-            "dom"
-        ],
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictNullChecks": true,
-        "strictFunctionTypes": true,
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true
-    },
-    "files": [
-        "index.d.ts",
-        "dom-mediacapture-record-tests.ts"
-    ]
-}
diff --git a/types/node/fs.d.ts b/types/node/fs.d.ts
index 17f742b4891839..2f583a0c929d87 100644
--- a/types/node/fs.d.ts
+++ b/types/node/fs.d.ts
@@ -581,7 +581,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function truncate(path: PathLike, len: number | undefined | null, callback: NoParamCallback): void;
+    export function truncate(path: PathLike, len: number | undefined, callback: NoParamCallback): void;
     /**
      * Asynchronous truncate(2) - Truncate a file to a specified length.
      * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
@@ -593,7 +593,7 @@ declare module "fs" {
          * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
          * @param len If not specified, defaults to `0`.
          */
-        function __promisify__(path: PathLike, len?: number | null): Promise<void>;
+        function __promisify__(path: PathLike, len?: number): Promise<void>;
     }
     /**
      * Truncates the file. Returns `undefined`. A file descriptor can also be
@@ -604,7 +604,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function truncateSync(path: PathLike, len?: number | null): void;
+    export function truncateSync(path: PathLike, len?: number): void;
     /**
      * Truncates the file descriptor. No arguments other than a possible exception are
      * given to the completion callback.
@@ -648,7 +648,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function ftruncate(fd: number, len: number | undefined | null, callback: NoParamCallback): void;
+    export function ftruncate(fd: number, len: number | undefined, callback: NoParamCallback): void;
     /**
      * Asynchronous ftruncate(2) - Truncate a file to a specified length.
      * @param fd A file descriptor.
@@ -660,7 +660,7 @@ declare module "fs" {
          * @param fd A file descriptor.
          * @param len If not specified, defaults to `0`.
          */
-        function __promisify__(fd: number, len?: number | null): Promise<void>;
+        function __promisify__(fd: number, len?: number): Promise<void>;
     }
     /**
      * Truncates the file descriptor. Returns `undefined`.
@@ -670,7 +670,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function ftruncateSync(fd: number, len?: number | null): void;
+    export function ftruncateSync(fd: number, len?: number): void;
     /**
      * Asynchronously changes owner and group of a file. No arguments other than a
      * possible exception are given to the completion callback.
diff --git a/types/node/test/fs.ts b/types/node/test/fs.ts
index 14e66483b04250..4639cfa1ba9910 100644
--- a/types/node/test/fs.ts
+++ b/types/node/test/fs.ts
@@ -539,6 +539,24 @@ async function testPromisify() {
     });
 }
 
+{
+    fs.truncate("path/file.txt", () => {});
+    fs.truncate("path/file.txt", 5, () => {});
+    fs.truncate("path/file.txt", undefined, () => {});
+
+    fs.truncateSync("path/file.txt");
+    fs.truncateSync("path/file.txt", 5);
+    fs.truncateSync("path/file.txt", undefined);
+
+    fs.ftruncate(123, () => {});
+    fs.ftruncate(123, 5, () => {});
+    fs.ftruncate(123, undefined, () => {});
+
+    fs.ftruncateSync(123);
+    fs.ftruncateSync(123, 5);
+    fs.ftruncateSync(123, undefined);
+}
+
 (async () => {
     const handle: FileHandle = await openAsync("test", "r");
     const writeStream = fs.createWriteStream("./index.d.ts", {
diff --git a/types/node/v18/fs.d.ts b/types/node/v18/fs.d.ts
index 771a4d704b7f78..591083f0378bd4 100644
--- a/types/node/v18/fs.d.ts
+++ b/types/node/v18/fs.d.ts
@@ -609,7 +609,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function truncate(path: PathLike, len: number | undefined | null, callback: NoParamCallback): void;
+    export function truncate(path: PathLike, len: number | undefined, callback: NoParamCallback): void;
     /**
      * Asynchronous truncate(2) - Truncate a file to a specified length.
      * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
@@ -621,7 +621,7 @@ declare module "fs" {
          * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
          * @param len If not specified, defaults to `0`.
          */
-        function __promisify__(path: PathLike, len?: number | null): Promise<void>;
+        function __promisify__(path: PathLike, len?: number): Promise<void>;
     }
     /**
      * Truncates the file. Returns `undefined`. A file descriptor can also be
@@ -632,7 +632,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function truncateSync(path: PathLike, len?: number | null): void;
+    export function truncateSync(path: PathLike, len?: number): void;
     /**
      * Truncates the file descriptor. No arguments other than a possible exception are
      * given to the completion callback.
@@ -676,7 +676,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function ftruncate(fd: number, len: number | undefined | null, callback: NoParamCallback): void;
+    export function ftruncate(fd: number, len: number | undefined, callback: NoParamCallback): void;
     /**
      * Asynchronous ftruncate(2) - Truncate a file to a specified length.
      * @param fd A file descriptor.
@@ -688,7 +688,7 @@ declare module "fs" {
          * @param fd A file descriptor.
          * @param len If not specified, defaults to `0`.
          */
-        function __promisify__(fd: number, len?: number | null): Promise<void>;
+        function __promisify__(fd: number, len?: number): Promise<void>;
     }
     /**
      * Truncates the file descriptor. Returns `undefined`.
@@ -698,7 +698,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function ftruncateSync(fd: number, len?: number | null): void;
+    export function ftruncateSync(fd: number, len?: number): void;
     /**
      * Asynchronously changes owner and group of a file. No arguments other than a
      * possible exception are given to the completion callback.
diff --git a/types/node/v20/fs.d.ts b/types/node/v20/fs.d.ts
index a19ff8abcc65ba..afee55f69b717c 100644
--- a/types/node/v20/fs.d.ts
+++ b/types/node/v20/fs.d.ts
@@ -579,7 +579,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function truncate(path: PathLike, len: number | undefined | null, callback: NoParamCallback): void;
+    export function truncate(path: PathLike, len: number | undefined, callback: NoParamCallback): void;
     /**
      * Asynchronous truncate(2) - Truncate a file to a specified length.
      * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
@@ -591,7 +591,7 @@ declare module "fs" {
          * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
          * @param len If not specified, defaults to `0`.
          */
-        function __promisify__(path: PathLike, len?: number | null): Promise<void>;
+        function __promisify__(path: PathLike, len?: number): Promise<void>;
     }
     /**
      * Truncates the file. Returns `undefined`. A file descriptor can also be
@@ -602,7 +602,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function truncateSync(path: PathLike, len?: number | null): void;
+    export function truncateSync(path: PathLike, len?: number): void;
     /**
      * Truncates the file descriptor. No arguments other than a possible exception are
      * given to the completion callback.
@@ -646,7 +646,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function ftruncate(fd: number, len: number | undefined | null, callback: NoParamCallback): void;
+    export function ftruncate(fd: number, len: number | undefined, callback: NoParamCallback): void;
     /**
      * Asynchronous ftruncate(2) - Truncate a file to a specified length.
      * @param fd A file descriptor.
@@ -658,7 +658,7 @@ declare module "fs" {
          * @param fd A file descriptor.
          * @param len If not specified, defaults to `0`.
          */
-        function __promisify__(fd: number, len?: number | null): Promise<void>;
+        function __promisify__(fd: number, len?: number): Promise<void>;
     }
     /**
      * Truncates the file descriptor. Returns `undefined`.
@@ -668,7 +668,7 @@ declare module "fs" {
      * @since v0.8.6
      * @param [len=0]
      */
-    export function ftruncateSync(fd: number, len?: number | null): void;
+    export function ftruncateSync(fd: number, len?: number): void;
     /**
      * Asynchronously changes owner and group of a file. No arguments other than a
      * possible exception are given to the completion callback.
diff --git a/types/react-virtualized-auto-sizer/.npmignore b/types/react-virtualized-auto-sizer/.npmignore
deleted file mode 100644
index 93e307400a5456..00000000000000
--- a/types/react-virtualized-auto-sizer/.npmignore
+++ /dev/null
@@ -1,5 +0,0 @@
-*
-!**/*.d.ts
-!**/*.d.cts
-!**/*.d.mts
-!**/*.d.*.ts
diff --git a/types/react-virtualized-auto-sizer/index.d.ts b/types/react-virtualized-auto-sizer/index.d.ts
deleted file mode 100644
index 0af839ba9f6848..00000000000000
--- a/types/react-virtualized-auto-sizer/index.d.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-import * as React from "react";
-
-export interface Size {
-    height: number;
-    width: number;
-}
-
-export interface AutoSizerProps {
-    /** Function responsible for rendering children. */
-    children: (size: Size) => React.ReactNode;
-
-    /** Optional custom CSS class name to attach to root AutoSizer element.    */
-    className?: string | undefined;
-
-    /** Default height to use for initial render; useful for SSR */
-    defaultHeight?: number | undefined;
-
-    /** Default width to use for initial render; useful for SSR */
-    defaultWidth?: number | undefined;
-
-    /** Disable dynamic :height property */
-    disableHeight?: boolean | undefined;
-
-    /** Disable dynamic :width property */
-    disableWidth?: boolean | undefined;
-
-    /** Nonce of the inlined stylesheet for Content Security Policy */
-    nonce?: string | undefined;
-
-    /** Callback to be invoked on-resize */
-    onResize?: ((size: Size) => void) | undefined;
-
-    /** Optional inline style */
-    style?: React.CSSProperties | undefined;
-}
-
-export default class extends React.Component<AutoSizerProps> {}
diff --git a/types/react-virtualized-auto-sizer/package.json b/types/react-virtualized-auto-sizer/package.json
deleted file mode 100644
index 90570cf35ac8ca..00000000000000
--- a/types/react-virtualized-auto-sizer/package.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "private": true,
-    "name": "@types/react-virtualized-auto-sizer",
-    "version": "1.0.9999",
-    "projects": [
-        "https://github.com/bvaughn/react-virtualized-auto-sizer/"
-    ],
-    "dependencies": {
-        "@types/react": "*"
-    },
-    "devDependencies": {
-        "@types/react-virtualized-auto-sizer": "workspace:."
-    },
-    "owners": [
-        {
-            "name": "Hidemi Yukita",
-            "githubUsername": "otofu-square"
-        }
-    ]
-}
diff --git a/types/react-virtualized-auto-sizer/react-virtualized-auto-sizer-tests.tsx b/types/react-virtualized-auto-sizer/react-virtualized-auto-sizer-tests.tsx
deleted file mode 100644
index 72093a55fe05c9..00000000000000
--- a/types/react-virtualized-auto-sizer/react-virtualized-auto-sizer-tests.tsx
+++ /dev/null
@@ -1,45 +0,0 @@
-import * as React from "react";
-import AutoSizer, { Size } from "react-virtualized-auto-sizer";
-
-class TestAutoSizer extends AutoSizer {}
-
-class TestApp extends React.Component {
-    onResize = (size: Size) => {
-        console.log(`width: ${size.width}`);
-        console.log(`height:  ${size.height}`);
-    };
-
-    render() {
-        return (
-            <>
-                <TestAutoSizer>
-                    {({ width, height }) => {
-                        const _width: number = width;
-                        const _height: number = height;
-                        console.log(`width: ${_width}`);
-                        console.log(`height:  ${_height}`);
-                        return null;
-                    }}
-                </TestAutoSizer>
-                <TestAutoSizer
-                    className="className"
-                    defaultHeight={0}
-                    defaultWidth={0}
-                    disableHeight={false}
-                    disableWidth={false}
-                    nonce="nonce"
-                    style={{ display: "none" }}
-                    onResize={this.onResize}
-                >
-                    {({ width, height }) => {
-                        const _width: number = width;
-                        const _height: number = height;
-                        console.log(`width: ${_width}`);
-                        console.log(`height:  ${_height}`);
-                        return null;
-                    }}
-                </TestAutoSizer>
-            </>
-        );
-    }
-}
diff --git a/types/react-virtualized-auto-sizer/tsconfig.json b/types/react-virtualized-auto-sizer/tsconfig.json
deleted file mode 100644
index 191b3c88fbb5e6..00000000000000
--- a/types/react-virtualized-auto-sizer/tsconfig.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "node16",
-        "lib": [
-            "es6",
-            "dom"
-        ],
-        "jsx": "react",
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictNullChecks": true,
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true,
-        "strictFunctionTypes": true
-    },
-    "files": [
-        "index.d.ts",
-        "react-virtualized-auto-sizer-tests.tsx"
-    ]
-}
diff --git a/types/webrtc/package.json b/types/webrtc/package.json
index be671503d5fbaf..cff9526b2eb11e 100644
--- a/types/webrtc/package.json
+++ b/types/webrtc/package.json
@@ -27,11 +27,6 @@
             "*": [
                 "ts5.3/*"
             ]
-        },
-        "<=5.0": {
-            "*": [
-                "ts5.0/*"
-            ]
         }
     },
     "devDependencies": {
diff --git a/types/webrtc/ts5.0/.eslintrc.json b/types/webrtc/ts5.0/.eslintrc.json
deleted file mode 100644
index 122f8d0a42c5f7..00000000000000
--- a/types/webrtc/ts5.0/.eslintrc.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "rules": {
-        "@typescript-eslint/adjacent-overload-signatures": "off",
-        "@typescript-eslint/no-empty-interface": "off"
-    }
-}
diff --git a/types/webrtc/ts5.0/MediaStream.d.ts b/types/webrtc/ts5.0/MediaStream.d.ts
deleted file mode 100644
index dafc7f5af94ee1..00000000000000
--- a/types/webrtc/ts5.0/MediaStream.d.ts
+++ /dev/null
@@ -1,194 +0,0 @@
-// Taken from http://dev.w3.org/2011/webrtc/editor/getusermedia.html
-// version: W3C Editor's Draft 29 June 2015
-
-interface ConstrainBooleanParameters {
-    exact?: boolean | undefined;
-    ideal?: boolean | undefined;
-}
-
-interface NumberRange {
-    max?: number | undefined;
-    min?: number | undefined;
-}
-
-interface ConstrainNumberRange extends NumberRange {
-    exact?: number | undefined;
-    ideal?: number | undefined;
-}
-
-interface ConstrainStringParameters {
-    exact?: string | string[] | undefined;
-    ideal?: string | string[] | undefined;
-}
-
-interface MediaStreamConstraints {
-    video?: boolean | MediaTrackConstraints | undefined;
-    audio?: boolean | MediaTrackConstraints | undefined;
-}
-
-declare namespace W3C {
-    type LongRange = NumberRange;
-    type DoubleRange = NumberRange;
-    type ConstrainBoolean = boolean | ConstrainBooleanParameters;
-    type ConstrainNumber = number | ConstrainNumberRange;
-    type ConstrainLong = ConstrainNumber;
-    type ConstrainDouble = ConstrainNumber;
-    type ConstrainString = string | string[] | ConstrainStringParameters;
-}
-
-interface MediaTrackConstraints extends MediaTrackConstraintSet {
-    advanced?: MediaTrackConstraintSet[] | undefined;
-}
-
-interface MediaTrackConstraintSet {
-    width?: W3C.ConstrainLong | undefined;
-    height?: W3C.ConstrainLong | undefined;
-    aspectRatio?: W3C.ConstrainDouble | undefined;
-    frameRate?: W3C.ConstrainDouble | undefined;
-    facingMode?: W3C.ConstrainString | undefined;
-    volume?: W3C.ConstrainDouble | undefined;
-    sampleRate?: W3C.ConstrainLong | undefined;
-    sampleSize?: W3C.ConstrainLong | undefined;
-    echoCancellation?: W3C.ConstrainBoolean | undefined;
-    latency?: W3C.ConstrainDouble | undefined;
-    deviceId?: W3C.ConstrainString | undefined;
-    groupId?: W3C.ConstrainString | undefined;
-}
-
-interface MediaTrackSupportedConstraints {
-    width?: boolean | undefined;
-    height?: boolean | undefined;
-    aspectRatio?: boolean | undefined;
-    frameRate?: boolean | undefined;
-    facingMode?: boolean | undefined;
-    volume?: boolean | undefined;
-    sampleRate?: boolean | undefined;
-    sampleSize?: boolean | undefined;
-    echoCancellation?: boolean | undefined;
-    latency?: boolean | undefined;
-    deviceId?: boolean | undefined;
-    groupId?: boolean | undefined;
-}
-
-interface MediaStream extends EventTarget {
-    // id: string;
-    // active: boolean;
-
-    // onactive: EventListener;
-    // oninactive: EventListener;
-    // onaddtrack: (event: MediaStreamTrackEvent) => any;
-    // onremovetrack: (event: MediaStreamTrackEvent) => any;
-
-    clone(): MediaStream;
-    stop(): void;
-
-    getAudioTracks(): MediaStreamTrack[];
-    getVideoTracks(): MediaStreamTrack[];
-    getTracks(): MediaStreamTrack[];
-
-    getTrackById(trackId: string): MediaStreamTrack;
-
-    addTrack(track: MediaStreamTrack): void;
-    removeTrack(track: MediaStreamTrack): void;
-}
-
-interface MediaStreamTrackEvent extends Event {
-    // track: MediaStreamTrack;
-}
-
-interface MediaStreamTrack extends EventTarget {
-    // id: string;
-    // kind: string;
-    // label: string;
-    enabled: boolean;
-    // muted: boolean;
-    // remote: boolean;
-    // readyState: MediaStreamTrackState;
-
-    // onmute: EventListener;
-    // onunmute: EventListener;
-    // onended: EventListener;
-    // onoverconstrained: EventListener;
-
-    clone(): MediaStreamTrack;
-
-    stop(): void;
-
-    getCapabilities(): MediaTrackCapabilities;
-    getConstraints(): MediaTrackConstraints;
-    getSettings(): MediaTrackSettings;
-    applyConstraints(constraints: MediaTrackConstraints): Promise<void>;
-}
-
-interface MediaTrackCapabilities {
-    // width: number | W3C.LongRange;
-    // height: number | W3C.LongRange;
-    // aspectRatio: number | W3C.DoubleRange;
-    // frameRate: number | W3C.DoubleRange;
-    // facingMode: string;
-    // volume: number | W3C.DoubleRange;
-    // sampleRate: number | W3C.LongRange;
-    // sampleSize: number | W3C.LongRange;
-    // echoCancellation: boolean[];
-    latency?: W3C.DoubleRange | undefined;
-    // deviceId: string;
-    // groupId: string;
-}
-
-interface MediaTrackSettings {
-    // width: number;
-    // height: number;
-    // aspectRatio: number;
-    // frameRate: number;
-    // facingMode: string;
-    // volume: number;
-    // sampleRate: number;
-    // sampleSize: number;
-    // echoCancellation: boolean;
-    latency?: number | undefined;
-    // deviceId: string;
-    // groupId: string;
-}
-
-interface MediaStreamError {
-    readonly name: string;
-    readonly message: string | null;
-    readonly constraintName: string | null;
-}
-
-interface NavigatorGetUserMedia {
-    (
-        constraints: MediaStreamConstraints,
-        successCallback: (stream: MediaStream) => void,
-        errorCallback: (error: MediaStreamError) => void,
-    ): void;
-}
-
-// to use with adapter.js, see: https://github.com/webrtc/adapter
-declare var getUserMedia: NavigatorGetUserMedia;
-
-interface Navigator {
-    getUserMedia: NavigatorGetUserMedia;
-
-    webkitGetUserMedia: NavigatorGetUserMedia;
-
-    mozGetUserMedia: NavigatorGetUserMedia;
-
-    msGetUserMedia: NavigatorGetUserMedia;
-
-    readonly mediaDevices: MediaDevices;
-}
-
-interface MediaDevices {
-    getSupportedConstraints(): MediaTrackSupportedConstraints;
-
-    getUserMedia(constraints: MediaStreamConstraints): Promise<MediaStream>;
-    enumerateDevices(): Promise<MediaDeviceInfo[]>;
-}
-
-interface MediaDeviceInfo {
-    // label: string;
-    // deviceId: string;
-    // kind: string;
-    // groupId: string;
-}
diff --git a/types/webrtc/ts5.0/RTCPeerConnection.d.ts b/types/webrtc/ts5.0/RTCPeerConnection.d.ts
deleted file mode 100644
index 7e2e50319237fa..00000000000000
--- a/types/webrtc/ts5.0/RTCPeerConnection.d.ts
+++ /dev/null
@@ -1,459 +0,0 @@
-// Note: Commented out definitions clash with definitions in lib.es6.d.ts. I
-// still kept them in here though, as sometimes they're more specific than the
-// ES6 library ones.
-
-/// <reference path='MediaStream.d.ts' />
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcerror
-interface RTCError extends DOMException {
-    readonly errorDetail: RTCErrorDetailType;
-    readonly httpRequestStatusCode: number | null;
-    readonly receivedAlert: number | null;
-    readonly sctpCauseCode: number | null;
-    readonly sdpLineNumber: number | null;
-    readonly sentAlert: number | null;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcerrorinit
-interface RTCErrorInit {
-    errorDetail: RTCErrorDetailType;
-    httpRequestStatusCode?: number | undefined;
-    receivedAlert?: number | undefined;
-    sctpCauseCode?: number | undefined;
-    sdpLineNumber?: number | undefined;
-    sentAlert?: number | undefined;
-}
-
-declare var RTCError: {
-    prototype: RTCError;
-    new(init: RTCErrorInit, message?: string): RTCError;
-};
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcerrorevent
-interface RTCErrorEvent extends Event {
-    readonly error: RTCError;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcerroreventinit
-interface RTCErrorEventInit extends EventInit {
-    error: RTCError;
-}
-
-declare var RTCErrorEvent: {
-    prototype: RTCErrorEvent;
-    new(type: string, eventInitDict: RTCErrorEventInit): RTCErrorEvent;
-};
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcicecandidatepair
-interface RTCIceCandidatePair {
-    local?: RTCIceCandidate | undefined;
-    remote?: RTCIceCandidate | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcofferansweroptions
-interface RTCOfferAnswerOptions {
-    voiceActivityDetection?: boolean | undefined; // default = true
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcofferoptions
-interface RTCOfferOptions extends RTCOfferAnswerOptions {
-    iceRestart?: boolean | undefined; // default = false
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcansweroptions
-interface RTCAnswerOptions extends RTCOfferAnswerOptions {
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtciceserver
-interface RTCIceServer {
-    credential?: string | undefined;
-    urls: string | string[];
-    username?: string | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtciceparameters
-interface RTCIceParameters {
-    iceLite?: boolean | undefined;
-    password?: string | undefined;
-    usernameFragment?: string | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcicerole
-type RTCIceRole = "controlled" | "controlling" | "unknown";
-
-interface RTCIceTransportEventMap {
-    "gatheringstatechange": Event;
-    "selectedcandidatepairchange": Event;
-    "statechange": Event;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcicetransport
-type IceTransportEventHandler = ((this: RTCIceTransport, ev: Event) => any) | null;
-interface RTCIceTransport extends EventTarget {
-    readonly role: RTCIceRole;
-    // readonly component: RTCIceComponent;
-    // readonly state: RTCIceTransportState;
-    readonly gatheringState: RTCIceGatheringState;
-    getLocalCandidates(): RTCIceCandidate[];
-    getRemoteCandidates(): RTCIceCandidate[];
-    getLocalParameters(): RTCIceParameters | null;
-    getRemoteParameters(): RTCIceParameters | null;
-    getSelectedCandidatePair(): RTCIceCandidatePair | null;
-    onstatechange: IceTransportEventHandler;
-    ongatheringstatechange: IceTransportEventHandler;
-    onselectedcandidatepairchange: IceTransportEventHandler;
-    addEventListener<K extends keyof RTCIceTransportEventMap>(
-        type: K,
-        listener: (this: RTCIceTransport, ev: RTCIceTransportEventMap[K]) => any,
-        options?: boolean | AddEventListenerOptions,
-    ): void;
-    addEventListener(
-        type: string,
-        listener: EventListenerOrEventListenerObject,
-        options?: boolean | AddEventListenerOptions,
-    ): void;
-    removeEventListener<K extends keyof RTCIceTransportEventMap>(
-        type: K,
-        listener: (this: RTCIceTransport, ev: RTCIceTransportEventMap[K]) => any,
-        options: boolean | EventListenerOptions,
-    ): void;
-    removeEventListener(
-        type: string,
-        listener: EventListenerOrEventListenerObject,
-        options?: boolean | EventListenerOptions,
-    ): void;
-}
-
-interface RTCDtlsTransportEventMap {
-    "error": Event;
-    "statechange": Event;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcdtlstransport
-type DtlsTransportEventHandler<E extends Event> = ((this: RTCDtlsTransport, ev: E) => any) | null;
-interface RTCDtlsTransport extends EventTarget {
-    readonly iceTransport: RTCIceTransport;
-    readonly state: RTCDtlsTransportState;
-    getRemoteCertificates(): ArrayBuffer[];
-    onerror: DtlsTransportEventHandler<Event>;
-    onstatechange: DtlsTransportEventHandler<Event>;
-    addEventListener<K extends keyof RTCDtlsTransportEventMap>(
-        type: K,
-        listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any,
-        options?: boolean | AddEventListenerOptions,
-    ): void;
-    addEventListener(
-        type: string,
-        listener: EventListenerOrEventListenerObject,
-        options?: boolean | AddEventListenerOptions,
-    ): void;
-    removeEventListener<K extends keyof RTCDtlsTransportEventMap>(
-        type: K,
-        listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any,
-        options?: boolean | EventListenerOptions,
-    ): void;
-    removeEventListener(
-        type: string,
-        listener: EventListenerOrEventListenerObject,
-        options?: boolean | EventListenerOptions,
-    ): void;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpcodeccapability
-interface RTCRtpCodecCapability {
-    mimeType: string;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpheaderextensioncapability
-interface RTCRtpHeaderExtensionCapability {
-    uri?: string | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpcapabilities
-interface RTCRtpCapabilities {
-    // codecs: RTCRtpCodecCapability[];
-    // headerExtensions: RTCRtpHeaderExtensionCapability[];
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtprtxparameters
-interface RTCRtpRtxParameters {
-    // ssrc: number;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpfecparameters
-interface RTCRtpFecParameters {
-    // ssrc: number;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpencodingparameters
-interface RTCRtpEncodingParameters {
-    // ssrc: number;
-    // rtx: RTCRtpRtxParameters;
-    // fec: RTCRtpFecParameters;
-    // dtx?: RTCDtxStatus;
-    // active: boolean;
-    // priority: RTCPriorityType;
-    // maxBitrate: number;
-    rid: string;
-    scaleResolutionDownBy?: number | undefined; // default = 1
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpheaderextensionparameters
-interface RTCRtpHeaderExtensionParameters {
-    // uri: string;
-    // id: number;
-    encrypted?: boolean | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtcpparameters
-interface RTCRtcpParameters {
-    // cname: string;
-    // reducedSize: boolean;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpcodecparameters
-interface RTCRtpCodecParameters {
-    // payloadType: number;
-    mimeType: string;
-    // clockRate: number;
-    channels?: number | undefined; // default = 1
-    sdpFmtpLine?: string | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpparameters
-interface RTCRtpParameters {
-    transactionId: string;
-    // encodings: RTCRtpEncodingParameters[];
-    // headerExtensions: RTCRtpHeaderExtensionParameters[];
-    // rtcp: RTCRtcpParameters;
-    // codecs: RTCRtpCodecParameters[];
-    // degradationPreference?: RTCDegradationPreference; // default = 'balanced'
-}
-
-// https://www.w3.org/TR/webrtc/#dom-rtcrtpcontributingsource
-interface RTCRtpContributingSource {
-    // readonly timestamp: number;
-    source: number;
-    // readonly audioLevel: number | null;
-    readonly voiceActivityFlag?: boolean | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpcapabilities
-interface RTCRtcCapabilities {
-    codecs: RTCRtpCodecCapability[];
-    headerExtensions: RTCRtpHeaderExtensionCapability[];
-}
-
-// https://www.w3.org/TR/webrtc/#dom-rtcrtpsender
-interface RTCRtpSender {
-    // readonly track?: MediaStreamTrack;
-    // readonly transport?: RTCDtlsTransport;
-    // readonly rtcpTransport?: RTCDtlsTransport;
-    setParameters(parameters?: RTCRtpParameters): Promise<void>;
-    getParameters(): RTCRtpParameters;
-    replaceTrack(withTrack: MediaStreamTrack): Promise<void>;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtpreceiver
-interface RTCRtpReceiver {
-    // readonly track?: MediaStreamTrack;
-    // readonly transport?: RTCDtlsTransport;
-    // readonly rtcpTransport?: RTCDtlsTransport;
-    getParameters(): RTCRtpParameters;
-    getContributingSources(): RTCRtpContributingSource[];
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtptransceiver
-interface RTCRtpTransceiver {
-    readonly mid: string | null;
-    readonly sender: RTCRtpSender;
-    readonly receiver: RTCRtpReceiver;
-    readonly stopped: boolean;
-    direction: RTCRtpTransceiverDirection;
-    setDirection(direction: RTCRtpTransceiverDirection): void;
-    stop(): void;
-    setCodecPreferences(codecs: RTCRtpCodecCapability[]): void;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcrtptransceiverinit
-interface RTCRtpTransceiverInit {
-    direction?: RTCRtpTransceiverDirection | undefined; // default = 'sendrecv'
-    streams?: MediaStream[] | undefined;
-    sendEncodings?: RTCRtpEncodingParameters[] | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#dom-rtccertificate
-interface RTCCertificate {
-    readonly expires: number;
-    getAlgorithm(): string;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcconfiguration
-interface RTCConfiguration {
-    iceServers?: RTCIceServer[] | undefined;
-    iceTransportPolicy?: RTCIceTransportPolicy | undefined; // default = 'all'
-    bundlePolicy?: RTCBundlePolicy | undefined; // default = 'balanced'
-    rtcpMuxPolicy?: RTCRtcpMuxPolicy | undefined; // default = 'require'
-    peerIdentity?: string | undefined; // default = null
-    certificates?: RTCCertificate[] | undefined;
-    iceCandidatePoolSize?: number | undefined; // default = 0
-}
-
-// Compatibility for older definitions on DefinitelyTyped.
-type RTCPeerConnectionConfig = RTCConfiguration;
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcsctptransport
-interface RTCSctpTransport {
-    readonly transport: RTCDtlsTransport;
-    readonly maxMessageSize: number;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcdatachannelinit
-interface RTCDataChannelInit {
-    ordered?: boolean | undefined; // default = true
-    maxPacketLifeTime?: number | undefined;
-    maxRetransmits?: number | undefined;
-    protocol?: string | undefined; // default = ''
-    negotiated?: boolean | undefined; // default = false
-    id?: number | undefined;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcdatachannel
-type DataChannelEventHandler<E extends Event> = ((this: RTCDataChannel, ev: E) => any) | null;
-interface RTCDataChannel extends EventTarget {
-    readonly label: string;
-    readonly ordered: boolean;
-    readonly maxPacketLifeTime: number | null;
-    readonly maxRetransmits: number | null;
-    readonly protocol: string;
-    readonly negotiated: boolean;
-    readonly id: number | null;
-    readonly readyState: RTCDataChannelState;
-    readonly bufferedAmount: number;
-    bufferedAmountLowThreshold: number;
-    // binaryType: string;
-
-    close(): void;
-    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
-
-    onopen: DataChannelEventHandler<Event>;
-    onmessage: DataChannelEventHandler<MessageEvent>;
-    onbufferedamountlow: DataChannelEventHandler<Event>;
-    // onerror: DataChannelEventHandler<RTCErrorEvent>;
-    onclose: DataChannelEventHandler<Event>;
-}
-
-// https://www.w3.org/TR/webrtc/#h-rtctrackevent
-interface RTCTrackEvent extends Event {
-    readonly receiver: RTCRtpReceiver;
-    readonly track: MediaStreamTrack;
-    readonly streams: readonly MediaStream[];
-    readonly transceiver: RTCRtpTransceiver;
-}
-
-// https://www.w3.org/TR/webrtc/#h-rtcpeerconnectioniceevent
-interface RTCPeerConnectionIceEvent extends Event {
-    readonly url: string | null;
-}
-
-// https://www.w3.org/TR/webrtc/#h-rtcpeerconnectioniceerrorevent
-interface RTCPeerConnectionIceErrorEvent extends Event {
-    readonly hostCandidate: string;
-    readonly url: string;
-    readonly errorCode: number;
-    readonly errorText: string;
-}
-
-// https://www.w3.org/TR/webrtc/#h-rtcdatachannelevent
-interface RTCDataChannelEvent {
-    readonly channel: RTCDataChannel;
-}
-
-// https://www.w3.org/TR/webrtc/#idl-def-rtcpeerconnection
-type PeerConnectionEventHandler<E extends Event> = ((this: RTCPeerConnection, ev: E) => any) | null;
-interface RTCPeerConnection extends EventTarget {
-    createOffer(options?: RTCOfferOptions): Promise<RTCSessionDescriptionInit>;
-    createAnswer(options?: RTCAnswerOptions): Promise<RTCSessionDescriptionInit>;
-
-    setLocalDescription(description: RTCSessionDescriptionInit): Promise<void>;
-    readonly localDescription: RTCSessionDescription | null;
-    readonly currentLocalDescription: RTCSessionDescription | null;
-    readonly pendingLocalDescription: RTCSessionDescription | null;
-
-    setRemoteDescription(description: RTCSessionDescriptionInit): Promise<void>;
-    readonly remoteDescription: RTCSessionDescription | null;
-    readonly currentRemoteDescription: RTCSessionDescription | null;
-    readonly pendingRemoteDescription: RTCSessionDescription | null;
-
-    addIceCandidate(candidate?: RTCIceCandidateInit | RTCIceCandidate): Promise<void>;
-
-    readonly signalingState: RTCSignalingState;
-    readonly connectionState: RTCPeerConnectionState;
-
-    getConfiguration(): RTCConfiguration;
-    setConfiguration(configuration: RTCConfiguration): void;
-    close(): void;
-
-    onicecandidateerror: PeerConnectionEventHandler<Event>;
-    onconnectionstatechange: PeerConnectionEventHandler<Event>;
-
-    // Extension: https://www.w3.org/TR/webrtc/#h-rtcpeerconnection-interface-extensions
-    getSenders(): RTCRtpSender[];
-    getReceivers(): RTCRtpReceiver[];
-    getTransceivers(): RTCRtpTransceiver[];
-    addTrack(track: MediaStreamTrack, ...streams: MediaStream[]): RTCRtpSender;
-    removeTrack(sender: RTCRtpSender): void;
-    addTransceiver(trackOrKind: MediaStreamTrack | string, init?: RTCRtpTransceiverInit): RTCRtpTransceiver;
-    ontrack: PeerConnectionEventHandler<RTCTrackEvent>;
-
-    // Extension: https://www.w3.org/TR/webrtc/#h-rtcpeerconnection-interface-extensions-1
-    readonly sctp: RTCSctpTransport | null;
-    createDataChannel(label: string | null, dataChannelDict?: RTCDataChannelInit): RTCDataChannel;
-    ondatachannel: PeerConnectionEventHandler<RTCDataChannelEvent>;
-
-    // Extension: https://www.w3.org/TR/webrtc/#h-rtcpeerconnection-interface-extensions-2
-    getStats(selector?: MediaStreamTrack | null): Promise<RTCStatsReport>;
-
-    // Extension: https://www.w3.org/TR/webrtc/#legacy-interface-extensions
-    // Deprecated!
-    createOffer(
-        successCallback: RTCSessionDescriptionCallback,
-        failureCallback: RTCPeerConnectionErrorCallback,
-        options?: RTCOfferOptions,
-    ): Promise<void>;
-    setLocalDescription(
-        description: RTCSessionDescriptionInit,
-        successCallback: () => void,
-        failureCallback: RTCPeerConnectionErrorCallback,
-    ): Promise<void>;
-    createAnswer(
-        successCallback: RTCSessionDescriptionCallback,
-        failureCallback: RTCPeerConnectionErrorCallback,
-    ): Promise<void>;
-    setRemoteDescription(
-        description: RTCSessionDescriptionInit,
-        successCallback: () => void,
-        failureCallback: RTCPeerConnectionErrorCallback,
-    ): Promise<void>;
-    addIceCandidate(
-        candidate: RTCIceCandidateInit | RTCIceCandidate,
-        successCallback: () => void,
-        failureCallback: RTCPeerConnectionErrorCallback,
-    ): Promise<void>;
-    getStats(
-        selector: MediaStreamTrack | null,
-        successCallback: (report: RTCStatsReport) => void,
-        failureCallback: RTCPeerConnectionErrorCallback,
-    ): Promise<void>;
-}
-interface RTCPeerConnectionStatic {
-    new(configuration?: RTCConfiguration, options?: any): RTCPeerConnection;
-    readonly defaultIceServers: RTCIceServer[];
-
-    // Extension: https://www.w3.org/TR/webrtc/#sec.cert-mgmt
-    generateCertificate(keygenAlgorithm: string): Promise<RTCCertificate>;
-}
-
-interface Window {
-    RTCPeerConnection: RTCPeerConnectionStatic;
-}
diff --git a/types/webrtc/ts5.0/index.d.ts b/types/webrtc/ts5.0/index.d.ts
deleted file mode 100644
index f950da1943286d..00000000000000
--- a/types/webrtc/ts5.0/index.d.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-/// <reference path="RTCPeerConnection.d.ts" />
-/// <reference path="MediaStream.d.ts" />
diff --git a/types/webrtc/ts5.0/test/MediaStream.ts b/types/webrtc/ts5.0/test/MediaStream.ts
deleted file mode 100644
index 0668afab8bca95..00000000000000
--- a/types/webrtc/ts5.0/test/MediaStream.ts
+++ /dev/null
@@ -1,36 +0,0 @@
-const mediaStreamConstraints: MediaStreamConstraints = { audio: true, video: true };
-
-const mediaTrackConstraintSet: MediaTrackConstraintSet = {};
-const mediaTrackConstraintArray: MediaTrackConstraintSet[] = [];
-const mediaTrackConstraints: MediaTrackConstraints = mediaTrackConstraintSet;
-const mediaTrackConstraints2: MediaTrackConstraints = { advanced: mediaTrackConstraintArray };
-
-navigator.getUserMedia(mediaStreamConstraints, stream => {
-    const track: MediaStreamTrack = stream.getTracks()[0];
-    console.log("label:" + track.label);
-    console.log("ended:" + track.readyState);
-    track.onended = (event: Event) => console.log("Track ended");
-}, error => {
-    console.log("Error message: " + error.message);
-    console.log("Error name: " + error.name);
-});
-
-navigator.webkitGetUserMedia(mediaStreamConstraints, stream => {
-    const track: MediaStreamTrack = stream.getTracks()[0];
-    console.log("label:" + track.label);
-    console.log("ended:" + track.readyState);
-    track.onended = (event: Event) => console.log("Track ended");
-}, error => {
-    console.log("Error message: " + error.message);
-    console.log("Error name: " + error.name);
-});
-
-navigator.mozGetUserMedia(mediaStreamConstraints, stream => {
-    const track: MediaStreamTrack = stream.getTracks()[0];
-    console.log("label:" + track.label);
-    console.log("ended:" + track.readyState);
-    track.onended = (event: Event) => console.log("Track ended");
-}, error => {
-    console.log("Error message: " + error.message);
-    console.log("Error name: " + error.name);
-});
diff --git a/types/webrtc/ts5.0/test/RTCPeerConnection.ts b/types/webrtc/ts5.0/test/RTCPeerConnection.ts
deleted file mode 100644
index 8ea9a2b858bf51..00000000000000
--- a/types/webrtc/ts5.0/test/RTCPeerConnection.ts
+++ /dev/null
@@ -1,124 +0,0 @@
-let defaultIceServers: RTCIceServer[] = window.RTCPeerConnection.defaultIceServers;
-if (defaultIceServers.length > 0) {
-    const urls = defaultIceServers[0].urls;
-}
-
-// Create a peer connection
-let ice1: RTCIceServer = {
-    urls: "stun:stun.l.google.com:19302",
-    username: "john",
-    credential: "1234",
-};
-let ice2: RTCIceServer = { urls: ["stun:stunserver.org", "stun:stun.example.com"] };
-let pc: RTCPeerConnection = new RTCPeerConnection({});
-let pc2: RTCPeerConnection = new RTCPeerConnection({
-    iceServers: [ice1, ice2],
-});
-window.RTCPeerConnection.generateCertificate("sha-256").then((cert: RTCCertificate) => {
-    new RTCPeerConnection({
-        iceServers: [ice1],
-        iceTransportPolicy: "relay",
-        bundlePolicy: "max-compat",
-        rtcpMuxPolicy: "require",
-        peerIdentity: "dude",
-        certificates: [cert],
-        iceCandidatePoolSize: 5,
-    });
-});
-
-// Get/set the configuration
-let conf: RTCConfiguration = pc2.getConfiguration();
-pc.setConfiguration(conf);
-
-// Close peer connection
-pc2.close();
-
-// Offer/answer flow
-pc.createOffer({ iceRestart: true })
-    .then((offer: RTCSessionDescriptionInit) => {
-        pc.setLocalDescription(offer);
-        pc2.setRemoteDescription(offer);
-        pc2.createAnswer().then((answer: RTCSessionDescriptionInit) => {
-            pc2.setLocalDescription(answer);
-            pc.setRemoteDescription(answer);
-        });
-    });
-
-// Event handlers
-pc.onnegotiationneeded = ev => console.log(ev.type);
-pc.onicecandidate = ev => console.log(ev.candidate);
-pc.onicecandidateerror = ev => console.log(ev.type);
-pc.onsignalingstatechange = ev => console.log(ev.type);
-pc.oniceconnectionstatechange = ev => console.log(ev.type);
-pc.onicegatheringstatechange = ev => console.log(ev.type);
-pc.onconnectionstatechange = ev => console.log(ev.type);
-pc.ontrack = ev => console.log(ev.receiver);
-pc.ondatachannel = ev => console.log(ev.channel);
-
-// State properties
-console.log(pc.signalingState);
-console.log(pc.iceGatheringState);
-console.log(pc.iceConnectionState);
-console.log(pc.connectionState);
-
-// Legacy interface extensions
-pc.createOffer(
-    (sdp: RTCSessionDescription) => console.log(sdp.sdp),
-    (error: DOMException) => console.log(error.message),
-    { iceRestart: true },
-).then(() => console.log("createOffer complete"));
-pc.setLocalDescription(
-    { type: "offer", sdp: "foobar" },
-    () => console.log("local description set"),
-    (error: DOMException) => console.log(error.message),
-).then(() => console.log("setLocalDescription complete"));
-pc.createAnswer(
-    (sdp: RTCSessionDescription) => console.log(sdp.sdp),
-    (error: DOMException) => console.log(error.message),
-).then(() => console.log("createAnswer complete"));
-pc.setRemoteDescription(
-    { type: "answer", sdp: "foobar" },
-    () => console.log("remote description set"),
-    (error: DOMException) => console.log(error.message),
-).then(() => console.log("setRemoteDescription complete"));
-pc.addIceCandidate(
-    { candidate: "candidate", sdpMid: "foo", sdpMLineIndex: 1 },
-    () => console.log("candidate added"),
-    (error: DOMException) => console.log(error.message),
-).then(() => console.log("addIceCandidate complete"));
-pc.getStats(
-    null,
-    (report: RTCStatsReport) => console.log("got report"),
-    (error: DOMException) => console.log(error.message),
-).then(() => console.log("getStats complete"));
-
-// RTCError
-const error = new RTCError({
-    errorDetail: "dtls-failure",
-    httpRequestStatusCode: 400,
-    receivedAlert: 1,
-    sctpCauseCode: 1,
-    sdpLineNumber: 1,
-    sentAlert: 1,
-});
-
-// RPCDtlsTransport
-const dtlsTransport = pc.sctp!.transport;
-dtlsTransport.onerror = (ev: RTCErrorEvent) => console.log(ev.error.errorDetail);
-dtlsTransport.onstatechange = ev => console.log(ev.type);
-dtlsTransport.addEventListener("error", (ev: RTCErrorEvent) => console.log(ev.error.errorDetail));
-dtlsTransport.addEventListener("statechange", ev => console.log(ev.type));
-console.log(dtlsTransport.state);
-
-// RPCIceTransport
-const iceTransport = dtlsTransport.iceTransport;
-iceTransport.onstatechange = ev => console.log(ev.type);
-iceTransport.ongatheringstatechange = ev => console.log(ev.type);
-iceTransport.onselectedcandidatepairchange = ev => console.log(ev.type);
-iceTransport.addEventListener("statechange", ev => console.log(ev.type));
-iceTransport.addEventListener("ongatheringstatechange", ev => console.log(ev.type));
-iceTransport.addEventListener("onselectedcandidatepairchange", ev => console.log(ev.type));
-console.log(iceTransport.role);
-console.log(iceTransport.gatheringState);
-console.log(iceTransport.getSelectedCandidatePair()!.local);
-console.log(iceTransport.getSelectedCandidatePair()!.remote);
diff --git a/types/webrtc/ts5.0/tsconfig.json b/types/webrtc/ts5.0/tsconfig.json
deleted file mode 100644
index fe96c1dfc187e8..00000000000000
--- a/types/webrtc/ts5.0/tsconfig.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "commonjs",
-        "lib": [
-            "es6",
-            "dom"
-        ],
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictNullChecks": true,
-        "strictFunctionTypes": false,
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true
-    },
-    "files": [
-        "index.d.ts",
-        "test/MediaStream.ts",
-        "test/RTCPeerConnection.ts"
-    ]
-}
diff --git a/types/wicg-file-system-access/package.json b/types/wicg-file-system-access/package.json
index 1d33e0cac1bd78..7ae634074a00ea 100644
--- a/types/wicg-file-system-access/package.json
+++ b/types/wicg-file-system-access/package.json
@@ -7,14 +7,6 @@
     "projects": [
         "https://github.com/WICG/file-system-access"
     ],
-    "types": "index",
-    "typesVersions": {
-        "<=5.0": {
-            "*": [
-                "ts5.0/*"
-            ]
-        }
-    },
     "devDependencies": {
         "@types/wicg-file-system-access": "workspace:."
     },
diff --git a/types/wicg-file-system-access/ts5.0/index.d.ts b/types/wicg-file-system-access/ts5.0/index.d.ts
deleted file mode 100644
index 84ce93936311bb..00000000000000
--- a/types/wicg-file-system-access/ts5.0/index.d.ts
+++ /dev/null
@@ -1,225 +0,0 @@
-export {};
-
-declare global {
-    interface FileSystemHandle {
-        readonly kind: "file" | "directory";
-        readonly name: string;
-
-        isSameEntry(other: FileSystemHandle): Promise<boolean>;
-        queryPermission(descriptor?: FileSystemHandlePermissionDescriptor): Promise<PermissionState>;
-        requestPermission(descriptor?: FileSystemHandlePermissionDescriptor): Promise<PermissionState>;
-
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `kind` property in the new API.
-         */
-        readonly isFile: boolean;
-
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `kind` property in the new API.
-         */
-        readonly isDirectory: boolean;
-    }
-    var FileSystemHandle: {
-        prototype: FileSystemHandle;
-        new(): FileSystemHandle;
-    };
-    type FileSystemHandleUnion = FileSystemFileHandle | FileSystemDirectoryHandle;
-
-    interface FilePickerAcceptType {
-        description?: string | undefined;
-        accept: Record<string, string | string[]>;
-    }
-
-    interface FilePickerOptions {
-        types?: FilePickerAcceptType[] | undefined;
-        excludeAcceptAllOption?: boolean | undefined;
-    }
-
-    interface OpenFilePickerOptions extends FilePickerOptions {
-        multiple?: boolean | undefined;
-    }
-
-    interface SaveFilePickerOptions extends FilePickerOptions {
-        suggestedName?: string;
-    }
-
-    // eslint-disable-next-line @typescript-eslint/no-empty-interface
-    interface DirectoryPickerOptions {}
-
-    type FileSystemPermissionMode = "read" | "readwrite";
-
-    interface FileSystemPermissionDescriptor extends PermissionDescriptor {
-        handle: FileSystemHandle;
-        mode?: FileSystemPermissionMode | undefined;
-    }
-
-    interface FileSystemHandlePermissionDescriptor {
-        mode?: FileSystemPermissionMode | undefined;
-    }
-
-    interface FileSystemCreateWritableOptions {
-        keepExistingData?: boolean | undefined;
-    }
-
-    interface FileSystemGetFileOptions {
-        create?: boolean | undefined;
-    }
-
-    interface FileSystemGetDirectoryOptions {
-        create?: boolean | undefined;
-    }
-
-    interface FileSystemRemoveOptions {
-        recursive?: boolean | undefined;
-    }
-
-    type WriteParams =
-        | { type: "write"; position?: number | undefined; data: BufferSource | Blob | string }
-        | { type: "seek"; position: number }
-        | { type: "truncate"; size: number };
-
-    type FileSystemWriteChunkType = BufferSource | Blob | string | WriteParams;
-
-    // TODO: remove this once https://github.com/microsoft/TSJS-lib-generator/issues/881 is fixed.
-    // Native File System API especially needs this method.
-    interface WritableStream {
-        close(): Promise<void>;
-    }
-
-    class FileSystemWritableFileStream extends WritableStream {
-        write(data: FileSystemWriteChunkType): Promise<void>;
-        seek(position: number): Promise<void>;
-        truncate(size: number): Promise<void>;
-    }
-
-    interface FileSystemFileHandle extends FileSystemHandle {
-        readonly kind: "file";
-        getFile(): Promise<File>;
-        createWritable(options?: FileSystemCreateWritableOptions): Promise<FileSystemWritableFileStream>;
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `kind` property in the new API.
-         */
-        readonly isFile: true;
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `kind` property in the new API.
-         */
-        readonly isDirectory: false;
-    }
-
-    var FileSystemFileHandle: {
-        prototype: FileSystemFileHandle;
-        new(): FileSystemFileHandle;
-    };
-
-    interface FileSystemDirectoryHandle extends FileSystemHandle {
-        readonly kind: "directory";
-        getDirectoryHandle(name: string, options?: FileSystemGetDirectoryOptions): Promise<FileSystemDirectoryHandle>;
-        getFileHandle(name: string, options?: FileSystemGetFileOptions): Promise<FileSystemFileHandle>;
-        removeEntry(name: string, options?: FileSystemRemoveOptions): Promise<void>;
-        resolve(possibleDescendant: FileSystemHandle): Promise<string[] | null>;
-        keys(): AsyncIterableIterator<string>;
-        values(): AsyncIterableIterator<FileSystemDirectoryHandle | FileSystemFileHandle>;
-        entries(): AsyncIterableIterator<[string, FileSystemDirectoryHandle | FileSystemFileHandle]>;
-        [Symbol.asyncIterator]: FileSystemDirectoryHandle["entries"];
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `kind` property in the new API.
-         */
-        readonly isFile: false;
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `kind` property in the new API.
-         */
-        readonly isDirectory: true;
-    }
-
-    var FileSystemDirectoryHandle: {
-        prototype: FileSystemDirectoryHandle;
-        new(): FileSystemDirectoryHandle;
-    };
-
-    interface DataTransferItem {
-        getAsFileSystemHandle(): Promise<FileSystemHandle | null>;
-    }
-
-    interface StorageManager {
-        getDirectory(): Promise<FileSystemDirectoryHandle>;
-    }
-
-    function showOpenFilePicker(
-        options?: OpenFilePickerOptions & { multiple?: false | undefined },
-    ): Promise<[FileSystemFileHandle]>;
-    function showOpenFilePicker(options?: OpenFilePickerOptions): Promise<FileSystemFileHandle[]>;
-    function showSaveFilePicker(options?: SaveFilePickerOptions): Promise<FileSystemFileHandle>;
-    function showDirectoryPicker(options?: DirectoryPickerOptions): Promise<FileSystemDirectoryHandle>;
-
-    // Old methods available on Chromium 85 instead of the ones above.
-
-    interface ChooseFileSystemEntriesOptionsAccepts {
-        description?: string | undefined;
-        mimeTypes?: string[] | undefined;
-        extensions?: string[] | undefined;
-    }
-
-    interface ChooseFileSystemEntriesFileOptions {
-        accepts?: ChooseFileSystemEntriesOptionsAccepts[] | undefined;
-        excludeAcceptAllOption?: boolean | undefined;
-    }
-
-    /**
-     * @deprecated Old method just for Chromium <=85. Use `showOpenFilePicker()` in the new API.
-     */
-    function chooseFileSystemEntries(
-        options?: ChooseFileSystemEntriesFileOptions & {
-            type?: "open-file" | undefined;
-            multiple?: false | undefined;
-        },
-    ): Promise<FileSystemFileHandle>;
-    /**
-     * @deprecated Old method just for Chromium <=85. Use `showOpenFilePicker()` in the new API.
-     */
-    function chooseFileSystemEntries(
-        options: ChooseFileSystemEntriesFileOptions & {
-            type?: "open-file" | undefined;
-            multiple: true;
-        },
-    ): Promise<FileSystemFileHandle[]>;
-    /**
-     * @deprecated Old method just for Chromium <=85. Use `showSaveFilePicker()` in the new API.
-     */
-    function chooseFileSystemEntries(
-        options: ChooseFileSystemEntriesFileOptions & {
-            type: "save-file";
-        },
-    ): Promise<FileSystemFileHandle>;
-    /**
-     * @deprecated Old method just for Chromium <=85. Use `showDirectoryPicker()` in the new API.
-     */
-    function chooseFileSystemEntries(options: { type: "open-directory" }): Promise<FileSystemDirectoryHandle>;
-
-    interface GetSystemDirectoryOptions {
-        type: "sandbox";
-    }
-
-    interface FileSystemDirectoryHandle {
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `.getFileHandle()` in the new API.
-         */
-        getFile: FileSystemDirectoryHandle["getFileHandle"];
-
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `.getDirectoryHandle()` in the new API.
-         */
-        getDirectory: FileSystemDirectoryHandle["getDirectoryHandle"];
-
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `.keys()`, `.values()`, `.entries()`, or the directory itself as an async iterable in the new API.
-         */
-        getEntries: FileSystemDirectoryHandle["values"];
-    }
-
-    interface FileSystemHandlePermissionDescriptor {
-        /**
-         * @deprecated Old property just for Chromium <=85. Use `mode: ...` in the new API.
-         */
-        writable?: boolean | undefined;
-    }
-}
diff --git a/types/wicg-file-system-access/ts5.0/tsconfig.json b/types/wicg-file-system-access/ts5.0/tsconfig.json
deleted file mode 100644
index af69376a4d147b..00000000000000
--- a/types/wicg-file-system-access/ts5.0/tsconfig.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "commonjs",
-        "lib": [
-            "ES5",
-            "ES2015.Promise",
-            "ESNext.AsyncIterable",
-            "DOM"
-        ],
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictFunctionTypes": true,
-        "strictNullChecks": true,
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true
-    },
-    "files": [
-        "index.d.ts",
-        "wicg-file-system-access-tests.ts"
-    ]
-}
diff --git a/types/wicg-file-system-access/ts5.0/wicg-file-system-access-tests.ts b/types/wicg-file-system-access/ts5.0/wicg-file-system-access-tests.ts
deleted file mode 100644
index f0fa86f65369c0..00000000000000
--- a/types/wicg-file-system-access/ts5.0/wicg-file-system-access-tests.ts
+++ /dev/null
@@ -1,104 +0,0 @@
-(async () => {
-    let [fileHandle]: [FileSystemFileHandle] = await showOpenFilePicker();
-    [fileHandle] = await showOpenFilePicker({ multiple: false });
-    const fileHandles: FileSystemFileHandle[] = await showOpenFilePicker({
-        excludeAcceptAllOption: true,
-        multiple: true,
-        types: [{ accept: { "image/*": [".png", ".jpg"], "text/plain": ".txt" } }],
-    });
-    let w: FileSystemWritableFileStream = await fileHandle.createWritable();
-    w = await fileHandle.createWritable({ keepExistingData: true });
-    await w.write("abc");
-    await w.write(new Uint8Array([1, 2, 3]));
-    await w.write({ type: "seek", position: 0 });
-    await w.seek(1);
-    await w.write(new Blob(["xyz"]));
-    await w.write({ type: "write", position: 3, data: new Uint8Array([4, 5, 6]) });
-    await w.write({ type: "truncate", size: 2 });
-    await w.truncate(1);
-    await w.close();
-
-    let permissionState: PermissionState = await fileHandle.queryPermission();
-    permissionState = await fileHandle.requestPermission({ mode: "read" });
-    permissionState = await fileHandle.requestPermission({ mode: "readwrite" });
-
-    const saveFilePickerOptions = {
-        suggestedName: "image.svg",
-    };
-    const filePickerOptions = {
-        excludeAcceptAllOption: true,
-        types: [{ description: "SVG images", accept: { "image/svg": ["svg"] } }],
-    };
-
-    fileHandle = await showSaveFilePicker();
-    fileHandle = await showSaveFilePicker({
-        ...filePickerOptions,
-    });
-    fileHandle = await showSaveFilePicker({
-        ...saveFilePickerOptions,
-    });
-    fileHandle = await showSaveFilePicker({
-        ...saveFilePickerOptions,
-        ...filePickerOptions,
-    });
-
-    const file: File = await fileHandle.getFile();
-    new ReadableStream().pipeTo(await fileHandle.createWritable());
-
-    let dirHandle: FileSystemDirectoryHandle = await showDirectoryPicker();
-    dirHandle = await showDirectoryPicker({});
-
-    (async function* recursivelyWalkDir(dirHandle: FileSystemDirectoryHandle): AsyncIterable<File> {
-        // Disable due to a bug in TSLint https://github.com/palantir/tslint/issues/3997:
-        // tslint:disable-next-line await-promise
-        for await (const [name, handle] of dirHandle) {
-            if (handle.kind === "file") {
-                yield handle.getFile();
-            } else {
-                yield* recursivelyWalkDir(handle);
-            }
-        }
-    })(dirHandle);
-
-    const maybePath = await dirHandle.resolve(fileHandle);
-    if (maybePath) {
-        const pathItems: string[] = maybePath;
-    }
-
-    fileHandle = await dirHandle.getFileHandle("temp.txt");
-    fileHandle = await dirHandle.getFileHandle("temp.txt", { create: true });
-
-    dirHandle = await dirHandle.getDirectoryHandle("subdir", { create: false });
-
-    await dirHandle.removeEntry("temp.txt");
-    await dirHandle.removeEntry("nested-dir", { recursive: true });
-
-    dirHandle = await navigator.storage.getDirectory();
-
-    // Testing Chromium <=85 methods, remove when all Chromium-based browsers have upgraded.
-
-    fileHandle = await chooseFileSystemEntries();
-    fileHandle = await chooseFileSystemEntries({
-        type: "open-file",
-        accepts: [{ description: "Images", extensions: ["png", "jpg"], mimeTypes: ["image/*"] }],
-        excludeAcceptAllOption: false,
-        multiple: false,
-    });
-    fileHandle = await chooseFileSystemEntries({ type: "save-file" });
-    dirHandle = await chooseFileSystemEntries({ type: "open-directory" });
-    dirHandle = await dirHandle.getDirectory("subdir", { create: true });
-    fileHandle = await dirHandle.getFile("file.txt");
-
-    permissionState = await fileHandle.requestPermission({ writable: false });
-    permissionState = await fileHandle.requestPermission({ writable: true });
-
-    (async function* recursivelyWalkDir(dirHandle: FileSystemDirectoryHandle): AsyncIterable<File> {
-        for await (const handle of dirHandle.getEntries()) {
-            if (handle.isFile) {
-                yield handle.getFile();
-            } else {
-                yield* recursivelyWalkDir(handle);
-            }
-        }
-    })(dirHandle);
-})();