Is there a schema versioning tool for cassandra

Pillar manages migrations for your Cassandra data stores.

Pillar grew from a desire to automatically manage Cassandra schema as code. Managing schema as code enables automated build and deployment, a foundational practice for an organization striving to achieve Continuous Delivery.

Pillar is to Cassandra what Rails ActiveRecord migrations or Play Evolutions are to relational databases with one key difference: Pillar is completely independent from any application development framework.

https://github.com/comeara/pillar

Your initial question doesn't specify a language, though you later indicate you'd like C#. I don't have a C# answer, but I've extracted the Java versioning component that I'm using for my project. I also created a small sample project that shows how to integrate it. It's bare-bones. There are different approaches to this problem, so I picked one that was simple to build and does what I need. Here are the two GitHub projects:

https://github.com/DonBranson/cql_schema_versioning

https://github.com/DonBranson/cql_schema_versioning_example

This component doesn't store a version # in the schema, but stores the list of scripts it's run. It depends on the sort order of the script names to determine run order. Very basic.