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From Rene Veerman <seductivea...@gmail.com>
Subject Re: [ANNOUNCE] Apache CouchDB 2.2.0 released
Date Thu, 09 Aug 2018 16:55:42 GMT
thanks to everyone who contributed in one way or another :)

i'm loving couchdb. never going back to SQL :D

On Thu, Aug 9, 2018 at 1:17 AM Joan Touzet <wohali@apache.org> wrote:

> Just a quick follow-up to say that the docker images are officially done:
>
>     https://github.com/docker-library/official-images/pull/4703
>
> At this point, we believe the release work is complete.
>
> -Joan "release engineer hat: off" Touzet
>
> ----- Original Message -----
> From: "Jan Lehnardt" <jan@apache.org>
> To: announce@apache.org, announce@couchdb.apache.org,
> user@couchdb.apache.org, "dev" <dev@couchdb.apache.org>, "marketing" <
> marketing@couchdb.apache.org>
> Sent: Wednesday, August 8, 2018 4:09:58 AM
> Subject: [ANNOUNCE] Apache CouchDB 2.2.0 released
>
> Dear community,
>
> Apache CouchDB 2.2.0 has been released and is available for download.
>
> Apache CouchDB™ lets you access your data where you need it. The Couch
> Replication Protocol is implemented in a variety of projects and products
> that span every imaginable computing environment from globally distributed
> server-clusters, over mobile phones to web browsers.
>
> Store your data safely, on your own servers, or with any leading cloud
> provider. Your web- and native applications love CouchDB, because it speaks
> JSON natively and supports binary data for all your data storage needs.
>
> The Couch Replication Protocol lets your data flow seamlessly between
> server clusters to mobile phones and web browsers, enabling a compelling
> offline-first user-experience while maintaining high performance and strong
> reliability. CouchDB comes with a developer-friendly query language, and
> optionally MapReduce for simple, efficient, and comprehensive data
> retrieval.
>
> Download your copy here:
>
>     https://couchdb.apache.org/#download
>
> Pre-built packages for Windows, macOS, Debian/Ubuntu and RHEL/CentOS are
> available. Docker images are in the publication process[1].
>
> CouchDB 2.2.0 is a feature release, and was originally published on
> 2018-08-08.
>
> The community would like to thank all contributors for their part in
> making this release, from the smallest bug report or patch to major
> contributions in code, design, or marketing, we couldn’t have done it
> without you!
>
> See the official release notes document for an exhaustive list of all
> changes:
>
>     http://docs.couchdb.org/en/2.2.0/whatsnew/2.2.html
>
> Release Notes highlights:
>
>   - New pluggable storage engine framework. This internal refactor makes
> it possible for CouchDB to use different backends for storing the base
> database file itself. The refactor included a full migration of the
> existing “legacy” storage engine into the new framework
>
>   - The minimum supported version of Erlang is now R17, not 16B03. Support
> for Erlang 21 is still ongoing and will be provided in a future release.
>
>   - The CouchDB replicator can now make use of the /_session endpoint
> rather than relying entirely on HTTP basic authentication headers. This can
> greatly improve replication performance.
>
>   - CouchDB no longer fails to complete replicating databases with large
> attachments. The fix for this issue included several related changes
> (GitHub issue 745[2] et.al.)
>
>   - Multiple queries can now be made at the POST /{db}/_all_docs/queries,
> POST /{db}/_design_docs/queries and POST /{db}/_local_docs/queries
> endpoints. Also, a new endpoint POST
> /{db}/_design/{ddoc}/_view/{view}/queries
>
>   - The least recently used (LRU) cache of databases is now only updated
> on database write, not read. This has lead to significant performance
> enhancements on very busy clusters.
>
>   - The revision stemming algorithm was optimized down from O(N^2) to O(N)
> via a depth-first search approach, and then further improved by calling the
> stemming operation only when necessary.
>
>   - CouchDB now checks for request authorization only once per each
> database request, improving the performance of any request that requires
> authorization.
>
>   - If a user specifies a value for use_index that is not valid for the
> selector (does not meet coverage requirements or proper sort fields),
> attempt to fall back to a valid index or full DB scan rather than returning
> a 400.
>
>   - CouchDB now includes a new builtin reduce
> function_approx_count_distinct, that uses a HyperLogLog algorithm to
> estimate the number of distinct keys in the view index. The precision is
> currently fixed to 2^11 observables, and therefore uses approximately 1.5KB
> of memory.
>
>   - Much improved documentation. Highlights include:
>     - A complete rewrite of the sharding documentation[3].
>     - Developer installation notes (INSTALL.*.rst)
>     - Much of the content of the original CouchDB Wiki has been imported
> into the official docs. (The old CouchDB Wiki is in the process of being
> deprecated.)
>
>   - Much improved Fauxton functionality. Highlights include:
>     - Search support in the code editor
>     - Support for relative Fauxton URLs (i.e., not always at /_utils)
>     - Replication setup enhancements for various authentication mechanisms
>     - Fixes for IE10, IE11, and Edge (we hope…)
>     - Resolving conflicts of design documents is now allowed
>
> - Many more smaller bug fixes and performance improvements, as well as
> more features and refinements. See the release notes for a full list:
>
>     http://docs.couchdb.org/en/2.2.0/whatsnew/2.2.html
>
> On behalf of the CouchDB PMC,
> Jan Lehnardt
> —
> [1]: https://github.com/docker-library/official-images/pull/4703
> [2]: https://github.com/apache/couchdb/issues/745
> [3]:
> http://docs.couchdb.org/en/2.2.0/cluster/sharding.html#cluster-sharding
>
>
>

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