diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce41de1aa..d109edd19 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,30 @@
+Changes in [21.0.0](https://github.com/matrix-org/matrix-js-sdk/releases/tag/v21.0.0) (2022-10-25)
+==================================================================================================
+
+## 🚨 BREAKING CHANGES
+ * Changes the `uploadContent` API, kills off `request` and `browser-request` in favour of `fetch`, removed callback support on a lot of the methods, adds a lot of tests. ([\#2719](https://github.com/matrix-org/matrix-js-sdk/pull/2719)). Fixes #2415 and #801.
+ * Remove deprecated `m.room.aliases` references ([\#2759](https://github.com/matrix-org/matrix-js-sdk/pull/2759)). Fixes vector-im/element-web#12680.
+
+## ✨ Features
+ * Remove node-specific crypto bits, use Node 16's WebCrypto ([\#2762](https://github.com/matrix-org/matrix-js-sdk/pull/2762)). Fixes #2760.
+ * Export types for MatrixEvent and Room emitted events, and make event handler map types stricter ([\#2750](https://github.com/matrix-org/matrix-js-sdk/pull/2750)). Contributed by @stas-demydiuk.
+ * Use even more stable calls to `/room_keys` ([\#2746](https://github.com/matrix-org/matrix-js-sdk/pull/2746)).
+ * Upgrade to Olm 3.2.13 which has been repackaged to support Node 18 ([\#2744](https://github.com/matrix-org/matrix-js-sdk/pull/2744)).
+ * Fix `power_level_content_override` type ([\#2741](https://github.com/matrix-org/matrix-js-sdk/pull/2741)).
+ * Add custom notification handling for MSC3401 call events  ([\#2720](https://github.com/matrix-org/matrix-js-sdk/pull/2720)).
+ * Add support for unread thread notifications ([\#2726](https://github.com/matrix-org/matrix-js-sdk/pull/2726)).
+ * Load Thread List with server-side assistance (MSC3856) ([\#2602](https://github.com/matrix-org/matrix-js-sdk/pull/2602)).
+ * Use stable calls to `/room_keys` ([\#2729](https://github.com/matrix-org/matrix-js-sdk/pull/2729)). Fixes vector-im/element-web#22839.
+
+## 🐛 Bug Fixes
+ * Fix POST data not being passed for registerWithIdentityServer ([\#2769](https://github.com/matrix-org/matrix-js-sdk/pull/2769)). Fixes matrix-org/element-web-rageshakes#16206.
+ * Fix IdentityPrefix.V2 containing spurious `/api` ([\#2761](https://github.com/matrix-org/matrix-js-sdk/pull/2761)). Fixes vector-im/element-web#23505.
+ * Always send back an httpStatus property if one is known ([\#2753](https://github.com/matrix-org/matrix-js-sdk/pull/2753)).
+ * Check for AbortError, not any generic connection error, to avoid tightlooping ([\#2752](https://github.com/matrix-org/matrix-js-sdk/pull/2752)).
+ * Correct the dir parameter of MSC3715 ([\#2745](https://github.com/matrix-org/matrix-js-sdk/pull/2745)). Contributed by @dhenneke.
+ * Fix sync init when thread unread notif is not supported ([\#2739](https://github.com/matrix-org/matrix-js-sdk/pull/2739)). Fixes vector-im/element-web#23435.
+ * Use the correct sender key when checking shared secret ([\#2730](https://github.com/matrix-org/matrix-js-sdk/pull/2730)). Fixes vector-im/element-web#23374.
+
 Changes in [20.1.0](https://github.com/matrix-org/matrix-js-sdk/releases/tag/v20.1.0) (2022-10-11)
 ============================================================================================================
 
diff --git a/package.json b/package.json
index 89ba7e31d..5719aa3f7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "matrix-js-sdk",
-  "version": "20.1.0",
+  "version": "21.0.0",
   "description": "Matrix Client-Server SDK for Javascript",
   "engines": {
     "node": ">=16.0.0"
@@ -32,7 +32,7 @@
   "keywords": [
     "matrix-org"
   ],
-  "main": "./src/index.ts",
+  "main": "./lib/index.js",
   "browser": "./lib/browser-index.js",
   "matrix_src_main": "./src/index.ts",
   "matrix_src_browser": "./src/browser-index.js",
@@ -129,5 +129,6 @@
   "jestSonar": {
     "reportPath": "coverage",
     "sonar56x": true
-  }
+  },
+  "typings": "./lib/index.d.ts"
 }
diff --git a/spec/integ/matrix-client-methods.spec.ts b/spec/integ/matrix-client-methods.spec.ts
index 88366e2ca..114d01147 100644
--- a/spec/integ/matrix-client-methods.spec.ts
+++ b/spec/integ/matrix-client-methods.spec.ts
@@ -1334,6 +1334,30 @@ describe("MatrixClient", function() {
             expect(resp.token).toBe("tt");
         });
     });
+
+    describe("registerWithIdentityServer", () => {
+        it("should pass data to POST request", async () => {
+            const token = {
+                access_token: "access_token",
+                token_type: "Bearer",
+                matrix_server_name: "server_name",
+                expires_in: 12345,
+            };
+
+            httpBackend!.when("POST", "/account/register").check(req => {
+                expect(req.data).toStrictEqual(token);
+            }).respond(200, {
+                access_token: "at",
+                token: "tt",
+            });
+
+            const prom = client!.registerWithIdentityServer(token);
+            await httpBackend!.flushAllExpected();
+            const resp = await prom;
+            expect(resp.access_token).toBe("at");
+            expect(resp.token).toBe("tt");
+        });
+    });
 });
 
 function withThreadId(event: MatrixEvent, newThreadId: string): MatrixEvent {