.. Licensed under the Apache License, Version 2.0 (the "License"); you may not .. use this file except in compliance with the License. You may obtain a copy of .. the License at .. .. http://www.apache.org/licenses/LICENSE-2.0 .. .. Unless required by applicable law or agreed to in writing, software .. distributed under the License is distributed on an "AS IS" BASIS, WITHOUT .. WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the .. License for the specific language governing permissions and limitations under .. the License.

.. _release/0.8.x:

============ 0.8.x Branch

.. contents:: :depth: 1 :local:

.. _release/0.8.1:

Version 0.8.1-incubating

Build and System Integration

• The couchdb script no longer uses awk for configuration checks as this was causing portability problems.
• Updated sudo example in README to use the -i option, this fixes problems when invoking from a directory the couchdb user cannot access.

Database Core

• Fix for replication problems where the write queues can get backed up if the writes aren't happening fast enough to keep up with the reads. For a large replication, this can exhaust memory and crash, or slow down the machine dramatically. The fix keeps only one document in the write queue at a time.
• Fix for databases sometimes incorrectly reporting that they contain 0 documents after compaction.
• CouchDB now uses ibrowse instead of inets for its internal HTTP client implementation. This means better replication stability.

Futon

• The view selector dropdown should now work in Opera and Internet Explorer even when it includes optgroups for design documents. (:issue:81)

JavaScript View Server

• Sealing of documents has been disabled due to an incompatibility with SpiderMonkey 1.9.
• Improve error handling for undefined values emitted by map functions. (:issue:83)

HTTP Interface

• Fix for chunked responses where chunks were always being split into multiple TCP packets, which caused problems with the test suite under Safari, and in some other cases.
• Fix for an invalid JSON response body being returned for some kinds of views. (:issue:84)
• Fix for connections not getting closed after rejecting a chunked request. (:issue:55)
• CouchDB can now be bound to IPv6 addresses.
• The HTTP Server header now contains the versions of CouchDB and Erlang.

.. _release/0.8.0:

Version 0.8.0-incubating

Build and System Integration

• CouchDB can automatically respawn following a server crash.
• Database server no longer refuses to start with a stale PID file.
• System logrotate configuration provided.
• Improved handling of ICU shared libraries.
• The couchdb script now automatically enables SMP support in Erlang.
• The couchdb and couchjs scripts have been improved for portability.
• The build and system integration have been improved for portability.

Database Core

• The view engine has been completely decoupled from the storage engine. Index data is now stored in separate files, and the format of the main database file has changed.
• Databases can now be compacted to reclaim space used for deleted documents and old document revisions.
• Support for incremental map/reduce views has been added.
• To support map/reduce, the structure of design documents has changed. View values are now JSON objects containing at least a map member, and optionally a reduce member.
• View servers are now identified by name (for example javascript) instead of by media type.
• Automatically generated document IDs are now based on proper UUID generation using the crypto module.
• The field content-type in the JSON representation of attachments has been renamed to content_type (underscore).

Futon

• When adding a field to a document, Futon now just adds a field with an autogenerated name instead of prompting for the name with a dialog. The name is automatically put into edit mode so that it can be changed immediately.
• Fields are now sorted alphabetically by name when a document is displayed.
• Futon can be used to create and update permanent views.
• The maximum number of rows to display per page on the database page can now be adjusted.
• Futon now uses the XMLHTTPRequest API asynchronously to communicate with the CouchDB HTTP server, so that most operations no longer block the browser.
• View results sorting can now be switched between ascending and descending by clicking on the Key column header.
• Fixed a bug where documents that contained a @ character could not be viewed. (:issue:12)
• The database page now provides a Compact button to trigger database compaction. (:issue:38)
• Fixed portential double encoding of document IDs and other URI segments in many instances. (:issue:39)
• Improved display of attachments.
• The JavaScript Shell has been removed due to unresolved licensing issues.

JavaScript View Server

• SpiderMonkey is no longer included with CouchDB, but rather treated as a normal external dependency. A simple C program (_couchjs) is provided that links against an existing SpiderMonkey installation and uses the interpreter embedding API.
• View functions using the default JavaScript view server can now do logging using the global log(message) function. Log messages are directed into the CouchDB log at INFO level. (:issue:59)
• The global map(key, value) function made available to view code has been renamed to emit(key, value).
• Fixed handling of exceptions raised by view functions.

HTTP Interface

• CouchDB now uses MochiWeb instead of inets for the HTTP server implementation. Among other things, this means that the extra configuration files needed for inets (such as couch_httpd.conf) are no longer used.
• The HTTP interface now completely supports the HEAD method. (:issue:3)
• Improved compliance of Etag handling with the HTTP specification. (:issue:13)
• Etags are no longer included in responses to document GET requests that include query string parameters causing the JSON response to change without the revision or the URI having changed.
• The bulk document update API has changed slightly on both the request and the response side. In addition, bulk updates are now atomic.
• CouchDB now uses TCP_NODELAY to fix performance problems with persistent connections on some platforms due to nagling.
• Including a ?descending=false query string parameter in requests to views no longer raises an error.
• Requests to unknown top-level reserved URLs (anything with a leading underscore) now return a unknown_private_path error instead of the confusing illegal_database_name.
• The Temporary view handling now expects a JSON request body, where the JSON is an object with at least a map member, and optional reduce and language members.
• Temporary views no longer determine the view server based on the Content-Type header of the POST request, but rather by looking for a language member in the JSON body of the request.
• The status code of responses to DELETE requests is now 200 to reflect that that the deletion is performed synchronously.