Pinecone change history: [Serverless][Azure][eastus2] 5xx errors on some requests for some indexes

Pinecone reported a major outage causing 5xx errors on some requests for some Serverless indexes in Azure eastus2. It started at 2026-07-09 09:50 UTC and was resolved at 2026-07-09 14:37 UTC, lasting 4 h 47 min; Pinecone reported implementing a fix and monitoring the results.