Upgrading Apache Cassandra™ 

Instructions for upgrading Apache Cassandra.

This section describes how to upgrade Apache Cassandra.

NEWS.txt contains the latest information on upgrading specific versions. When upgrading from an earlier release, read NEWS.txt all the way back to your current version.

Attention: Read and understand these instructions before upgrading.

You have probably seen the recommendation to read all the instructions. This is a time when careful review of the upgrade instructions will make a difference. By understanding what to do beforehand, you can ensure a smooth upgrade and avoid pitfalls and frustrations.