Dear community,
Apache CouchDB® 3.5.1 has been released and is available for download.
CouchDB 3.5.1 is a maintenance release, and was originally published on
2025-11-11.
https://couchdb.apache.org/#download
Pre-built packages for Windows, macOS, Debian/Ubuntu and RHEL/CentOS, as well
as Docker images are available.
Release Notes highlights:
- Native support for UUIDv7 automatic _id generation
- Various performance improvements for purge, bulk endpoints and btree caching
- A large number of clean ups and bug fixes
Special Notice Heads Up:
- The next feature version of CouchDB (3.6.0) will switch to using the
QuickJS engine for all JavaScript operations by default. SpiderMonkey will
remain available on supported platforms, but it is causing an increasing strain
on testing and release engineering, so the project is starting to make the
switch.
- To ready yourself for the upgrade, you can run the new Background Scanner
feature[1] and have your existing JavaScript code be analysed to see if it will
behave as expected under QuickJS. Moden JavaScript running on modern (> version
1.8.5) SpiderMonkey should translate seamlessly. Refer to our documented
list[2] of difference between various engine types and versions.
- Please note that due to platform support, RHEL 10 and AlmaLinux 10 binaries
of 3.5.1 are already only shipping with QuickJS.
[1]: https://docs.couchdb.org/en/stable/config/scanner.html
[2]: https://docs.couchdb.org/en/stable/best-practices/jsdevel.html
See the official release notes document for an exhaustive list of all changes:
http://docs.couchdb.org/en/stable/whatsnew/3.5.html
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.
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!
On behalf of the CouchDB PMC,
Jan Lehnardt
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