Merge tag 'v23.1.1' into sc

* Fix backwards compability for environment not support Array.prototype.at ([\matrix-org#3080](matrix-org#3080)).
SchildiChat · Jan 30, 2023 · d89e210 · d89e210
2 parents e6c127a + 8408f36
commit d89e210
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Changes in [23.1.1](https://github.com/matrix-org/matrix-js-sdk/releases/tag/v23.1.1) (2023-01-20)
+==================================================================================================
+
+## 🐛 Bug Fixes
+ * Fix backwards compability for environment not support Array.prototype.at ([\#3080](https://github.com/matrix-org/matrix-js-sdk/pull/3080)).
+
 Changes in [23.1.0](https://github.com/matrix-org/matrix-js-sdk/releases/tag/v23.1.0) (2023-01-18)
 ==================================================================================================
 

diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "matrix-js-sdk",
-    "version": "23.1.0",
+    "version": "23.1.1",
     "description": "Matrix Client-Server SDK for Javascript",
     "engines": {
         "node": ">=16.0.0"

diff --git a/src/models/thread.ts b/src/models/thread.ts
@@ -572,7 +572,7 @@ export class Thread extends ReadReceipt<EmittedEvents, EventHandlerMap> {
      */
     public getEventReadUpTo(userId: string, ignoreSynthesized?: boolean): string | null {
         const isCurrentUser = userId === this.client.getUserId();
-        const lastReply = this.timeline.at(-1);
+        const lastReply = this.timeline[this.timeline.length - 1];
         if (isCurrentUser && lastReply) {
             // If the last activity in a thread is prior to the first threaded read receipt
             // sent in the room (suggesting that it was sent before the user started