= Welcome to Apache Cassandra's documentation!

:description: Starting page for Apache Cassandra documentation.
:keywords: Apache, Cassandra, NoSQL, database
:cass-url: http://cassandra.apache.org
:cass-contrib-url: https://wiki.apache.org/cassandra/HowToContribute

This is the official documentation for {cass-url}[Apache Cassandra]. 
If you would like to contribute to this documentation, you are welcome 
to do so by submitting your contribution like any other patch following
{cass-contrib-url}[these instructions].

== Main documentation

[cols="a,a"]
|===

| xref:cassandra:getting_started/index.adoc[Getting started] | Newbie starting point

| xref:cassandra:new/index.adoc[What's new in 4.0] | What's new in Cassandra 4.0

| xref:cassandra:architecture/index.adoc[Architecture] | Cassandra's big picture

| xref:cassandra:data_modeling/index.adoc[Data modeling] | Hint: it's not relational

| xref:cassandra:cql/index.adoc[Cassandra Query Language (CQL)] | CQL reference documentation

| xref:cassandra:configuration/index.adoc[Configuration] | Cassandra's handles and knobs

| xref:cassandra:operating/index.adoc[Operation] | The operator's corner

| xref:cassandra:tools/index.adoc[Tools] | cqlsh, nodetool, and others

| xref:cassandra:troubleshooting/index.adoc[Troubleshooting] | What to look for when you have a problem

| xref:cassandra:faq/index.adoc[FAQ] | Frequently asked questions

| xref:cassandra:plugins/index.adoc[Plug-ins] | Third-party plug-ins

| xref:master@_:ROOT:native_protocol.adoc[Native Protocols] | Native Cassandra protocol specifications

|===

== Meta information
* xref:master@_:ROOT:bugs.adoc[Reporting bugs]
* xref:master@_:ROOT:contactus.adoc[Contact us]
* xref:master@_:ROOT:development/index.adoc[Contributing code]
* xref:master@_:ROOT:docdev/index.adoc[Contributing to the docs]
* xref:master@_:ROOT:community.adoc[Community]
* xref:master@_:ROOT:download.adoc[Download]
