| --- |
| title: "Apache Beam 2.49.0" |
| date: 2023-07-17 09:00:00 -0400 |
| categories: |
| - blog |
| - release |
| authors: |
| - yhu |
| --- |
| <!-- |
| 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. |
| --> |
| |
| We are happy to present the new 2.49.0 release of Beam. |
| This release includes both improvements and new functionality. |
| See the [download page](/get-started/downloads/#2490-2023-07-17) for this release. |
| |
| <!--more--> |
| |
| For more information on changes in 2.49.0, check out the [detailed release notes](https://github.com/apache/beam/milestone/13). |
| |
| ## I/Os |
| |
| * Support for Bigtable Change Streams added in Java `BigtableIO.ReadChangeStream` ([#27183](https://github.com/apache/beam/issues/27183)). |
| * Added Bigtable Read and Write cross-language transforms to Python SDK (([#26593](https://github.com/apache/beam/issues/26593)), ([#27146](https://github.com/apache/beam/issues/27146))). |
| |
| ## New Features / Improvements |
| |
| * Allow prebuilding large images when using `--prebuild_sdk_container_engine=cloud_build`, like images depending on `tensorflow` or `torch` ([#27023](https://github.com/apache/beam/pull/27023)). |
| * Disabled `pip` cache when installing packages on the workers. This reduces the size of prebuilt Python container images ([#27035](https://github.com/apache/beam/pull/27035)). |
| * Select dedicated avro datum reader and writer (Java) ([#18874](https://github.com/apache/beam/issues/18874)). |
| * Timer API for the Go SDK (Go) ([#22737](https://github.com/apache/beam/issues/22737)). |
| |
| |
| ## Deprecations |
| |
| * Remove Python 3.7 support. ([#26447](https://github.com/apache/beam/issues/26447)) |
| |
| ## Bugfixes |
| |
| * Fixed KinesisIO `NullPointerException` when a progress check is made before the reader is started (IO) ([#23868](https://github.com/apache/beam/issues/23868)) |
| |
| ### Known Issues |
| |
| * Long-running Python pipelines might experience a memory leak: [#28246](https://github.com/apache/beam/issues/28246). |
| * Python SDK's cross-language Bigtable sink mishandles records that don't have an explicit timestamp set: [#28632](https://github.com/apache/beam/issues/28632). To avoid this issue, set explicit timestamps for all records before writing to Bigtable. |
| * Python pipelines using the `--impersonate_service_account` option with BigQuery IOs might fail on Dataflow ([#32030](https://github.com/apache/beam/issues/32030)). This is fixed in 2.59.0 release. |
| |
| |
| ## List of Contributors |
| |
| According to git shortlog, the following people contributed to the 2.49.0 release. Thank you to all contributors! |
| |
| Abzal Tuganbay |
| |
| AdalbertMemSQL |
| |
| Ahmed Abualsaud |
| |
| Ahmet Altay |
| |
| Alan Zhang |
| |
| Alexey Romanenko |
| |
| Anand Inguva |
| |
| Andrei Gurau |
| |
| Arwin Tio |
| |
| Bartosz Zablocki |
| |
| Bruno Volpato |
| |
| Burke Davison |
| |
| Byron Ellis |
| |
| Chamikara Jayalath |
| |
| Charles Rothrock |
| |
| Chris Gavin |
| |
| Claire McGinty |
| |
| Clay Johnson |
| |
| Damon |
| |
| Daniel Dopierała |
| |
| Danny McCormick |
| |
| Darkhan Nausharipov |
| |
| David Cavazos |
| |
| Dip Patel |
| |
| Dmitry Repin |
| |
| Gavin McDonald |
| |
| Jack Dingilian |
| |
| Jack McCluskey |
| |
| James Fricker |
| |
| Jan Lukavský |
| |
| Jasper Van den Bossche |
| |
| John Casey |
| |
| John Gill |
| |
| Joseph Crowley |
| |
| Kanishk Karanawat |
| |
| Katie Liu |
| |
| Kenneth Knowles |
| |
| Kyle Galloway |
| |
| Liam Miller-Cushon |
| |
| MakarkinSAkvelon |
| |
| Masato Nakamura |
| |
| Mattie Fu |
| |
| Michel Davit |
| |
| Naireen Hussain |
| |
| Nathaniel Young |
| |
| Nelson Osacky |
| |
| Nick Li |
| |
| Oleh Borysevych |
| |
| Pablo Estrada |
| |
| Reeba Qureshi |
| |
| Reuven Lax |
| |
| Ritesh Ghorse |
| |
| Robert Bradshaw |
| |
| Robert Burke |
| |
| Rouslan |
| |
| Saadat Su |
| |
| Sam Rohde |
| |
| Sam Whittle |
| |
| Sanil Jain |
| |
| Shunping Huang |
| |
| Smeet nagda |
| |
| Svetak Sundhar |
| |
| Timur Sultanov |
| |
| Udi Meiri |
| |
| Valentyn Tymofieiev |
| |
| Vlado Djerek |
| |
| WuA |
| |
| XQ Hu |
| |
| Xianhua Liu |
| |
| Xinyu Liu |
| |
| Yi Hu |
| |
| Zachary Houfek |
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| alexeyinkin |
| |
| bigduu |
| |
| bullet03 |
| |
| bzablocki |
| |
| jonathan-lemos |
| |
| jubebo |
| |
| magicgoody |
| |
| ruslan-ikhsan |
| |
| sultanalieva-s |
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| vitaly.terentyev |
| |
