Apache CouchDB 1.4.0 has been released and is available for download.

CouchDB is a database that completely embraces the web. Store your data with JSON documents. Access your documents with your web browser, via HTTP. Query, combine, and transform your documents with JavaScript. CouchDB works well with modern web and mobile apps. You can even serve web apps directly out of CouchDB. And you can distribute your data, or your apps, efficiently using CouchDB’s incremental replication. CouchDB supports master-master setups with automatic conflict detection.

Grab your copy here:

http://couchdb.apache.org/

Pre-built packages for Windows and OS X are available.

CouchDB 1.4.0 is a feature release, and was originally published on 2013-09-03.

These release notes are based on the changelog.

Upgrade Notes

• We now support Erlang/OTP R16B and R16B01; the minimum required version is R14B.
• User document role values must now be strings. Other types of values will be
  refused when saving the user document.

Changes

• COUCHDB-1684: Support for server-wide changes feed reporting on creation,
  updates and deletion of databases. #917d8988
• COUCHDB-1139: it’s possible to apply list
  functions to _all_docs view. #54fd258e
• Automatic loading of CouchDB plugins. #3fab6bb5
• Allow storing pre-hashed admin passwords via _config API.
  #c98ba561
• COUCHDB-1772: Prevent invalid JSON output when using all_or_nothing
  _bulk_docs API. #dfd39d57
• Add a configurable whitelist of user
  document properties. #8d7ab8b1
• COUCHDB-1852: Support Last-Event-ID header in EventSource changes feeds.
  #dfd2199a
• Much improved documentation, including an expanded description of validate_doc_update functions (commit:ef9ac469) and
  a description of how CouchDB handles JSON number values (#bbd93f77).
• COUCHDB-1632: Ignore epilogues in multipart/related MIME attachments.
  #2b4ab67a
• Split up replicator_db tests into multiple independent tests.