Pinecone change history: [Serverless][AWS][us-east-1] 5xx errors on read operations for some indexes

Pinecone reported a major incident affecting Serverless indexes in AWS us-east-1, with 5xx errors on read operations for some indexes. It started at 2025-09-02 22:46 UTC and was resolved at 2025-09-03 14:00 UTC, lasting 15 h 14 min. Pinecone stated that a fix was implemented and monitored before resolution.