It is not possible to perform an upgrade between Couchbase Server 2.0 pre-releases including beta, or to perform an offline upgrade from Couchbase Server 1.8 to a pre-release or beta of Couchbase Server 2.0. To upgrade between these versions use cbbackup to backup your data, delete the existing installation, install the new version, and restore the stored data.

For more information, see Section 5.6, “Backup and Restore”, Appendix B, Uninstalling Couchbase Server.

Documents identified as Non-JSON stored within Couchbase Server may appear as binary, or text-encoded binary data within the UI.

Issues: MB-7069

During periods of moderate CPU load on the Couchbase Server cluster, you may see warnings that IP address seems to have changed. Unable to listen to node X.X.X.X.

Issues: MB-7115, MB-7238, MB-7228

The cbbackup, cbrestore, and cbtransfer command-line tools require the zlib module for Python to have been installed. If Python was installed from source, you must have enabled zlib using the --with-zlib option during the build process.

Issues: MB-7256

For more information, see Section 5.6, “Backup and Restore”, Appendix B, Uninstalling Couchbase Server.