From 123aebec2caa74b17d2b5dcbd2a2db2e687cf3ac Mon Sep 17 00:00:00 2001
From: Ricardo Garim <rswarovsky@gmail.com>
Date: Wed, 18 Feb 2026 19:24:41 -0300
Subject: [PATCH] fix: add TTL index to statistics collection for automatic
 cleanup (#38568)

---
 .changeset/young-humans-stare.md         | 6 ++++++
 packages/models/src/models/Statistics.ts | 5 ++++-
 2 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/young-humans-stare.md

diff --git a/.changeset/young-humans-stare.md b/.changeset/young-humans-stare.md
new file mode 100644
index 00000000000..f9d113d947d
--- /dev/null
+++ b/.changeset/young-humans-stare.md
@@ -0,0 +1,6 @@
+---
+'@rocket.chat/models': patch
+'@rocket.chat/meteor': patch
+---
+
+Adds automatic cleanup of statistics collection with 1-year retention via TTL index.
diff --git a/packages/models/src/models/Statistics.ts b/packages/models/src/models/Statistics.ts
index 8a1dae77dc7..47ddb6a633f 100644
--- a/packages/models/src/models/Statistics.ts
+++ b/packages/models/src/models/Statistics.ts
@@ -10,7 +10,10 @@ export class StatisticsRaw extends BaseRaw<IStats> implements IStatisticsModel {
 	}
 
 	protected override modelIndexes(): IndexDescription[] {
-		return [{ key: { createdAt: -1 } }];
+		return [
+			{ key: { createdAt: -1 } },
+			{ key: { createdAt: 1 }, expireAfterSeconds: 365 * 24 * 60 * 60 }, // expire after 1 year
+		];
 	}
 
 	async findLast(): Promise<IStats> {