Heroku has launched new Heroku Postgres Essential database plans with pgvector support and no row count limits. These plans, starting at $5 per month, offer exceptional transactional query performance powered by Amazon Aurora. Compared to the previous Mini and Basic plans, the Essential plans provide up to three times the query throughput performance and increased flexibility. Developers can easily migrate their existing plans to the new Essential plans with minimal downtime. The Essential plans are ideal for various use cases, from development and testing to prototype projects, educational purposes, low-traffic web apps, startups, and Salesforce integration trials. Moreover, the future partnership with Amazon Aurora promises even more enhancements and scalability options.
https://blog.heroku.com/heroku-postgres-essential-launch