changes_2.1.1.md

Spark Connector 2.1.1, released 2023-08-29

Code name: JDBC connection cache drop, magic s3 hadoop committer

Summary

S3 connector uses faster hadoop committer, fix possible race condition in RDD operations

Features

• #163: Switched to magic hadoop committer for intermediate s3 files
• #200: Dropped JDBC connection cache in ExasolConnectionManager