fix: reconnect immediately on foreground after long background

app/sagas/state.js

@@ -19,13 +19,15 @@ const appHasComeBackToForeground = function* appHasComeBackToForeground() {
 	if (appRoot !== RootEnum.ROOT_INSIDE) {
 		return;
 	}
-	const isReady = yield isAuthAndConnected();
-	if (!isReady) {
+	const login = yield select(state => state.login);
+	if (!login.isAuthenticated) {
 		return;
 	}
 	try {
 		const server = yield select(state => state.server.server);
 		yield localAuthenticate(server);
+		// Always reconnect on foreground; gating on meteor.connected would skip
+		// the call precisely when the socket died silently in background.
 		checkAndReopen();
 		// Check for pending notification when app comes to foreground (Android - notification tap while in background)
 		checkPendingNotification().catch(e => {

package.json

@@ -140,7 +140,7 @@
 		"use-deep-compare-effect": "1.6.1",
 		"xregexp": "5.0.2",
 		"yup": "0.32.11",
-		"zustand": "^5.0.10"
+		"zustand": "5.0.10"
 	},
 	"resolutions": {
 		"ua-parser-js": "1.0.2",

patches/@rocket.chat+sdk+1.3.3-mobile.patch

@@ -2,7 +2,51 @@ diff --git a/node_modules/@rocket.chat/sdk/lib/drivers/ddp.ts b/node_modules/@ro
 index 19d31ae..d5295b5 100644
 --- a/node_modules/@rocket.chat/sdk/lib/drivers/ddp.ts
 +++ b/node_modules/@rocket.chat/sdk/lib/drivers/ddp.ts
-@@ -549,7 +549,9 @@ export class DDPDriver extends EventEmitter implements ISocket, IDriver {
+@@ -175,15 +175,36 @@
+     return Promise.resolve()
+   }
+
+-  // Call open directly, so it skips openTimeout
++  // Tear down any existing socket and reopen unconditionally. The `connected`
++  // getter trusts `readyState === 1 && alive()` — both can lie after iOS
++  // background suspend (zombie WebSocket still reporting OPEN, lastPing still
++  // inside the alive window because of a server message just before suspend).
++  // Forcing teardown + resetting lastPing guarantees a fresh connection.
+   checkAndReopen = () => {
+-    if (!this.connected) {
+-      if (this.openTimeout) {
+-        clearTimeout(this.openTimeout as any)
+-        delete this.openTimeout
+-      }
+-      this.open()
++    this.lastPing = 0
++    if (this.openTimeout) {
++      clearTimeout(this.openTimeout as any)
++      delete this.openTimeout
+     }
++    if (this.pingTimeout) {
++      clearTimeout(this.pingTimeout as any)
++      delete this.pingTimeout
++    }
++    if (this.connection) {
++      try {
++        // Detach handlers before close so the orphaned socket can't trigger
++        // another reopen() race against the open() we're about to start.
++        this.connection.onopen = null as any
++        this.connection.onmessage = null as any
++        this.connection.onerror = null as any
++        this.connection.onclose = null as any
++        this.connection.close(userDisconnectCloseCode)
++      } catch (e) {
++        this.logger.debug(`[ddp] checkAndReopen close error: ${(e as Error).message}`)
++      }
++      this.connection = undefined
++    }
++    this.open()
+   }
+
+   /** Clear connection and try to connect again. */
+@@ -549,7 +570,9 @@
        'uiInteraction',
        'e2ekeyRequest',
        'userData',

yarn.lock

@@ -13841,7 +13841,7 @@ yup@0.32.11:
   resolved "https://registry.yarnpkg.com/zod/-/zod-4.3.6.tgz#89c56e0aa7d2b05107d894412227087885ab112a"
   integrity sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==
 
-zustand@^5.0.10:
-  version "5.0.12"
-  resolved "https://registry.yarnpkg.com/zustand/-/zustand-5.0.12.tgz#ed36f647aa89965c4019b671dfc23ef6c6e3af8c"
-  integrity sha512-i77ae3aZq4dhMlRhJVCYgMLKuSiZAaUPAct2AksxQ+gOtimhGMdXljRT21P5BNpeT4kXlLIckvkPM029OljD7g==
+zustand@5.0.10:
+  version "5.0.10"
+  resolved "https://registry.yarnpkg.com/zustand/-/zustand-5.0.10.tgz#4db510c0c4c25a5f1ae43227b307ddf1641a3210"
+  integrity sha512-U1AiltS1O9hSy3rul+Ub82ut2fqIAefiSuwECWt6jlMVUGejvf+5omLcRBSzqbRagSM3hQZbtzdeRc6QVScXTg==