This is the 1.0 release of Alembic. We are confident it performs well, is feature complete, and is bug free enough to make the following promises: 1. Alembic Data will be backwards compatible with any version of the API. 2. Read performance will be the same or improve with future versions. 3. API will remain source code compatible unless read performance can be greatly improved. 4. Write performance will stay the same or improve unless read performance can be greatly increased. 5. Disk space usage will stay the same or improve unless read performance can be greatly increased. 6. Traversing the hierarchy must remain fast and not require much data loading/memory usage to guarantee on-demand loading. 7. Reading and writing the data for a specific node will not require the data of any other node for on-demand loading and writing. 8. Reading and writing a frame for a node will not require any other frame for on-demand loading and writing. There are several items that aren't in version 1.0 but will hopefully be included in a future patch: * Python bindings for the public-facing API. * Katana plugin * Houdini exporter Alembic is stable and usable, and any comments, criticisms or insights that you can provide are more than welcome. We hope you'll share your thoughts and feedback with us on alembic-discussion@googlegroups.com. To join the alembic-discussion mailing list, please visit http://groups.google.com/group/alembic-discussion. Thanks, The Alembic Team