Milvus 2.x vs. 1.x: Cloud-native, distributed architecture, highly scalable, and more

<table class="comparison"> <thead> <tr> <th>&nbsp;</th> <th>Milvus 1.x</th> <th>Milvus 2.x</th> </tr> <tr> <th>Architecture</th> <td>Shared storage</td> <td>Cloud native</td> </tr> </thead> <tbody> <tr> <th>Scalability</th> <td>1 to 32 read nodes with only one write node</td> <td>500+ nodes</td> </tr> <tr> <th>Durability</th> <td> <li>Local disk</li> <li>Network file system (NFS)</li> </td> <td> <li>Object storage service (OSS)</li> <li>Distributed file system (DFS)</li> </td> </tr> <tr> <th>Availability</th> <td>99%</td> <td>99.9%</td> </tr> <tr> <th>Data consistency</th> <td>Eventual consistency</td> <td>Three levels of consistency: <li>Strong</li> <li>Bounded Staleness</li> <li>Session</li> <li>Consistent prefix</li> </td> </tr> <tr> <th>Data types supported</th> <td>Vectors</td> <td> <li>Vectors</li> <li>Fixed-length scalars</li> <li>VARCHAR <a href="https://github.com/milvus-io/milvus/releases/tag/v2.1.0"></a></li> </td> </tr> <tr> <th>Basic operations supported</th> <td> <li>Data insertion</li> <li>Data deletion</li> <li>Approximate nearest neighbor (ANN) Search</li> </td> <td> <li>Data insertion</li> <li>Data deletion </li> <li>Data query</li> <li>Approximate nearest neighbor (ANN) Search</li> <li>Recurrent neural network (RNN) search </li> </td> </tr> <tr> <th>Advanced features</th> <td><li>Mishards</li><li>Milvus DM</li></td> <td><li>Scalar filtering</li><li>Time Travel</li><li>Multi-site deployment and multi-cloud integration</li><li>Data management tools</li></td> </tr> <tr> <th>Index types and libraries</th> <td> <li>Faiss</li> <li>Annoy</li> <li>Hnswlib</li> <li>RNSG</li> </td> <td> <li>Faiss</li> <li>Annoy</li> <li>Hnswlib</li> <li>RNSG</li> <li>ScaNN </li> <li>On-disk index </li> </td> </tr> <tr> <th>SDKs</th> <td> <li><a href="https://github.com/milvus-io/pymilvus/tree/1.x">Python<a></li> <li><a href="https://github.com/milvus-io/milvus-sdk-java">Java</a></li> <li><a href="https://github.com/milvus-io/milvus-sdk-go/tree/1.x">Go</a></li> <li><a href="https://github.com/milvus-io/milvus/tree/1.1/core/src/server/web_impl">RESTful</a></li> <li><a href="https://github.com/milvus-io/milvus/tree/1.1/sdk">C++</a></li> </td> <td> <li><a href="https://github.com/milvus-io/pymilvus">Python<a></li> <li><a href="https://github.com/milvus-io/milvus-sdk-node">Node</a></li> <li><a href="https://github.com/milvus-io/milvus-sdk-go">Go</a></li> <li><a href="https://github.com/milvus-io/milvus-sdk-java/tree/master">Java</a></li> <li>RESTful </li> <li>C++ </li> </td> </tr> <tr> <th>Release status</th> <td>Long-term support (LTS)</td> <td>General Availability.</td> </tr> </tbody> </table>