Release Notes

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    Release notes, installation instructions, and download archive for the Couchbase Python Client.

    Couchbase Python SDK 4.x is built upon Couchbase++, and SDK 3.x is built upon LCB (libcouchbase), but both conform to the SDK API 3.x. The move to Couchbase++ facilitates the introduction of distributed ACID transactions.

    Because the Python SDK is written primarily in C using the CPython API, the official SDK will not work on PyPy.

    Installation

    You may install previous versions of the SDK using pip (after installing the required dependencies)

    $ python3 -m pip install git+https://github.com/couchbase/couchbase-python-client@VERSION

    where VERSION is the version you wish to install. For example, to install version 4.1.0:

    $ python3 -m pip install git+https://github.com/couchbase/couchbase-python-client@4.1.0

    For more detailed installation instructions, see the full installation guide.

    Release Notes

    Version 4.1.0 (3 November 2022)

    Version 4.1.0 is the first minor release of the fourth generation Python SDK, bringing a number of improvements.

    $ python3 -m pip install couchbase==4.1.0

    Fixes

    • PYCBC-1420: Fixed potential InternalSDKException for replica read operations.

    Enhancements

    • PYCBC-1402: Added support for using PYCBC_LOG_LEVEL to create console logger.

    • PYCBC-1417: Updated authentication error message for Bucket Hibernation.

    • PYCBC-1422: Updated Couchbase++ version to incorporate latest changes.

    • PYCBC-1167: Added support for Serverless Execution Environments.

    • PYCBC-1423: Added durability improvements.

    Version 4.0.5 (7 October 2022)

    Version 4.0.5 is the fifth patch release of the fourth generation Python SDK, bringing a number of improvements.

    $ python3 -m pip install couchbase==4.0.5

    Fixes

    • PYCBC-1312; PYCBC-1407: Fixed crash related to closing a cluster connection.

    • PYCBC-1409: Updated to version of Couchbase++ client that correctly closes HTTP connections.

    • PYCBC-1413: Fixed possible streaming API exceptions when executing in threaded environment.

    • PYCBC-1415: Updated async APIs to use correct future chaining method for read KV operations.

    • PYCBC-1416: Fixed txcouchbase search API.

    Enhancements

    • PYCBC-1405: Updated legacy durability to use the internal Couchbase++ client API.

    • PYCBC-1406: Updated replica reads to use the internal Couchbase++ client API.

    • PYCBC-1411: Added support for LDAP authentication.

    Version 4.0.4 (8 September 2022)

    Version 4.0.4 is the fourth patch release of the fourth generation Python SDK, bringing a number of improvements. Most notably the 4.0.4 release added legacy durability to mutation operations, tracing, and metrics.

    $ python3 -m pip install couchbase==4.0.4

    Fixes

    • PYCBC-1398: Fixed potential crash when accessing error_context from a base_exception object.

    Enhancements

    • PYCBC-1261: Added Tracing API, including the ability to use an external tracer such as OpenTelemetry.

    • PYCBC-1276: Added legacy durability to mutation operations. This allows the use of client durability within operations that allow for a durability option.

    • PYCBC-1399: Added Metrics API — users can now provide a custom meter for logging metrics.

    • PYCBC-1391: Removed _raw_metrics property from streaming API Metrics result objects.

    • PYCBC-1392: Updated collection.exists() logic to align with a recent change in the underlying Couchbase++ client. Users will no longer see an error if a document doesn’t exist, instead the resp.exists() method will be needed to determine whether a document is there or not.

    • PYCBC-1395: Updated build deferred index logic to align with recent change in Couchbase++ client.

    Version 4.0.3 (2 August 2022)

    Version 4.0.3 is the third patch release of the fourth generation Python SDK, bringing a number of improvements. Most notably the 4.0.3 release added key-value replica read operations and improved memory performance.

    $ python3 -m pip install couchbase==4.0.3

    Fixes

    Enhancements

    Known Issues

    • PYCBC-1261: Distributed tracing is not yet supported.

    • PYCBC-1276: Legacy durability operations are not yet supported.

    • PYCBC-1290: Transactions for txcouchbase are not yet supported.

    • PYCBC-1321: API docs for txcouchbase API are not yet available.

    Version 4.0.2 (29 June 2022)

    Version 4.0.2 is the second patch release of the fourth generation Python SDK, bringing a number of improvements. Most notably the 4.0.2 release provides manylinux wheels which significantly improves the installation process on Linux platforms.

    $ python3 -m pip install couchbase==4.0.2

    Fixes

    • PYCBC-1370: Added environment variables to direct CMake to use specified Python3 version.

    • PYCBC-1374: Added option to dynamically link stdc++ libs.

    Enhancements

    Known Issues

    • PYCBC-1257: Replica reads are not yet supported.

    • PYCBC-1261: Distributed tracing is not yet supported.

    • PYCBC-1276: Legacy durability operations are not yet supported.

    • PYCBC-1290: Transactions for txcouchbase are not yet supported.

    • PYCBC-1321: API docs for txcouchbase API are not yet available.

    Version 4.0.1 (9 June 2022)

    Version 4.0.1 is the first patch release of the fourth generation Python SDK, bringing a number of improvements.

    $ python3 -m pip install couchbase==4.0.1

    Fixes

    • PYCBC-1324: Fixed N1QL Query options scan_wait/scan_cap misspelling.

    • PYCBC-1335: Fixed issue where positional and named parameters were not used in TransactionQueryOptions.

    • PYCBC-1336: Fixed crash when using ViewOptions keys parameter.

    • PYCBC-1342: Fixed the txcouchbase API Bucket Management API.

    • PYCBC-1343: Fixed the txcouchbase Collection Management API.

    Enhancements

    • PYCBC-1328 Implemented txcouchbase test suite.

    • PYCBC-1320: Added acouchbase core API Docs.

    • PYCBC-1329: Cleaned up the acouchbase API test suite.

    • PYCBC-1331: Updated streaming API options tests to validate all parameters.

    • PYCBC-1333: Updated README, API docs for 4.0.1 release.

    • PYCBC-1334: Cleaned up couchbase API test suite.

    • PYCBC-1358: Updated Windows wheel to dynamically link against OpenSSL.

    Known Issues

    • PYCBC-1232: Core IO logging is not forwarded through to Python.

    • PYCBC-1257: Replica reads are not yet supported.

    • PYCBC-1261: Distributed tracing is not yet supported.

    • PYCBC-1276: Legacy durability operations are not yet supported.

    • PYCBC-1290: Transactions for txcouchbase are not yet supported.

    • PYCBC-1321: API docs for txcouchbase API are not yet available.

    Version 4.0.0 (6 May 2022)

    Version 4.0.0 is the first major release of the next generation Python SDK, built on the Couchbase++ library — featuring multi-document distributed ACID transactions, and bringing a number of improvements to the SDK.

    $ python3 -m pip install couchbase==4.0.0

    New Features

    • Support for distributed transactions has now been implemented.

    • Reimplemented the library using couchbase++.

    • Improved alignment between couchbase, acouchbase and txcouchbase APIs.

    • Support for Python versions 3.7 - 3.10.

    • Improved API documentation.

    Fixes

    • PYCBC-849: Implemented wait until ready.

    • PYCBC-1146: Aligned multi key-value methods with couchbase API.

    • PYCBC-1280: Fixed implementation of the CertificateAuthenticator.

    • PYCBC-1296: Updated SearchRow to not print locations when not included.

    Known Issues

    • PYCBC-1232: Core IO logging is not forwarded through to Python.

    • PYCBC-1257: Replica reads are not yet supported.

    • PYCBC-1261: Distributed tracing is not yet supported.

    • PYCBC-1276: Legacy durability operations are not yet supported.

    • PYCBC-1290: Transactions for txcouchbase are not yet supported.

    • PYCBC-1319: Management APIs for txcouchbase are not yet supported.

    • PYCBC-1320: API docs for acouchbase API are not yet available.

    • PYCBC-1321: API docs for txcouchbase API are not yet available.

    • PYCBC-1322: Scoped transactional queries currently throw a TransactionFailed error.

    Older Releases

    For documentation on older releases please refer to the 3.x release notes page.