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<h1>Blog</h1>
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<article>
<h2 class="blog-title"><a href="/news/2018/03/08/release-1.4.2.html">Apache Flink 1.4.2 Released</a></h2>
<p>08 Mar 2018
</p>
<p><p>The Apache Flink community released the second bugfix version of the Apache Flink 1.4 series.</p>
</p>
<p><a href="/news/2018/03/08/release-1.4.2.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">An Overview of End-to-End Exactly-Once Processing in Apache Flink (with Apache Kafka, too!)</a></h2>
<p>01 Mar 2018
Piotr Nowojski (<a href="https://twitter.com/PiotrNowojski">@PiotrNowojski</a>) &amp; Mike Winters (<a href="https://twitter.com/wints">@wints</a>)</p>
<p>Flink 1.4.0 introduced a new feature that makes it possible to build end-to-end exactly-once applications with Flink and data sources and sinks that support transactions.</p>
<p><a href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2018/02/15/release-1.4.1.html">Apache Flink 1.4.1 Released</a></h2>
<p>15 Feb 2018
</p>
<p><p>The Apache Flink community released the first bugfix version of the Apache Flink 1.4 series.</p>
</p>
<p><a href="/news/2018/02/15/release-1.4.1.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/features/2018/01/30/incremental-checkpointing.html">Managing Large State in Apache Flink: An Intro to Incremental Checkpointing</a></h2>
<p>30 Jan 2018
Stefan Ricther (<a href="https://twitter.com/StefanRRicther">@StefanRRicther</a>) &amp; Chris Ward (<a href="https://twitter.com/chrischinch">@chrischinch</a>)</p>
<p>Flink 1.3.0 introduced incremental checkpointing, making it possible for applications with large state to generate checkpoints more efficiently.</p>
<p><a href="/features/2018/01/30/incremental-checkpointing.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2017/12/21/2017-year-in-review.html">Apache Flink in 2017: Year in Review</a></h2>
<p>21 Dec 2017
Chris Ward (<a href="https://twitter.com/chrischinch">@chrischinch</a>) &amp; Mike Winters (<a href="https://twitter.com/wints">@wints</a>)</p>
<p>As 2017 comes to a close, let's take a moment to look back on the Flink community's great work during the past year.</p>
<p><a href="/news/2017/12/21/2017-year-in-review.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2017/12/12/release-1.4.0.html">Apache Flink 1.4.0 Release Announcement</a></h2>
<p>12 Dec 2017
Aljoscha Krettek (<a href="https://twitter.com/aljoscha">@aljoscha</a>) &amp; Mike Winters (<a href="https://twitter.com/wints">@wints</a>)</p>
<p><p>The Apache Flink community is pleased to announce the 1.4.0 release. Over the past 5 months, the
Flink community has been working hard to resolve more than 900 issues. See the <a href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&amp;version=12340533">complete changelog</a>
for more detail.</p>
</p>
<p><a href="/news/2017/12/12/release-1.4.0.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2017/11/22/release-1.4-and-1.5-timeline.html">Looking Ahead to Apache Flink 1.4.0 and 1.5.0</a></h2>
<p>22 Nov 2017
Stephan Ewen (<a href="https://twitter.com/StephanEwen">@StephanEwen</a>), Aljoscha Krettek (<a href="https://twitter.com/aljoscha">@aljoscha</a>), &amp; Mike Winters (<a href="https://twitter.com/wints">@wints</a>)</p>
<p><p>The Apache Flink 1.4.0 release is on track to happen in the next couple of weeks, and for all of the
readers out there who haven’t been following the release discussion on <a href="http://flink.apache.org/community.html#mailing-lists">Flink’s developer mailing
list</a>, we’d like to provide some details on
what’s coming in Flink 1.4.0 as well as a preview of what the Flink community will save for 1.5.0.</p>
</p>
<p><a href="/news/2017/11/22/release-1.4-and-1.5-timeline.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2017/08/05/release-1.3.2.html">Apache Flink 1.3.2 Released</a></h2>
<p>05 Aug 2017
</p>
<p><p>The Apache Flink community released the second bugfix version of the Apache Flink 1.3 series.</p>
</p>
<p><a href="/news/2017/08/05/release-1.3.2.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/features/2017/07/04/flink-rescalable-state.html">A Deep Dive into Rescalable State in Apache Flink</a></h2>
<p>04 Jul 2017 by Stefan Richter (<a href="https://twitter.com/">@StefanRRichter</a>)
</p>
<p><p>A primer on stateful stream processing and an in-depth walkthrough of rescalable state in Apache Flink.</p></p>
<p><a href="/features/2017/07/04/flink-rescalable-state.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2017/06/23/release-1.3.1.html">Apache Flink 1.3.1 Released</a></h2>
<p>23 Jun 2017
</p>
<p><p>The Apache Flink community released the first bugfix version of the Apache Flink 1.3 series.</p>
</p>
<p><a href="/news/2017/06/23/release-1.3.1.html">Continue reading &raquo;</a></p>
</article>
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<h2>2020</h2>
<ul id="markdown-toc">
<li><a href="/news/2020/07/06/release-1.11.0.html">Apache Flink 1.11.0 Release Announcement</a></li>
<li><a href="/ecosystem/2020/06/23/flink-on-zeppelin-part2.html">Flink on Zeppelin Notebooks for Interactive Data Analysis - Part 2</a></li>
<li><a href="/news/2020/06/15/flink-on-zeppelin-part1.html">Flink on Zeppelin Notebooks for Interactive Data Analysis - Part 1</a></li>
<li><a href="/news/2020/06/11/community-update.html">Flink Community Update - June'20</a></li>
<li><a href="/news/2020/06/09/release-statefun-2.1.0.html">Stateful Functions 2.1.0 Release Announcement</a></li>
<li><a href="/news/2020/05/12/release-1.10.1.html">Apache Flink 1.10.1 Released</a></li>
<li><a href="/news/2020/05/07/community-update.html">Flink Community Update - May'20</a></li>
<li><a href="/news/2020/05/04/season-of-docs.html">Applying to Google Season of Docs 2020</a></li>
<li><a href="/news/2020/04/24/release-1.9.3.html">Apache Flink 1.9.3 Released</a></li>
<li><a href="/news/2020/04/21/memory-management-improvements-flink-1.10.html">Memory Management Improvements with Apache Flink 1.10</a></li>
<li><a href="/news/2020/04/15/flink-serialization-tuning-vol-1.html">Flink Serialization Tuning Vol. 1: Choosing your Serializer — if you can</a></li>
<li><a href="/2020/04/09/pyflink-udf-support-flink.html">PyFlink: Introducing Python Support for UDFs in Flink's Table API</a></li>
<li><a href="/news/2020/04/07/release-statefun-2.0.0.html">Stateful Functions 2.0 - An Event-driven Database on Apache Flink</a></li>
<li><a href="/news/2020/04/01/community-update.html">Flink Community Update - April'20</a></li>
<li><a href="/features/2020/03/27/flink-for-data-warehouse.html">Flink as Unified Engine for Modern Data Warehousing: Production-Ready Hive Integration</a></li>
<li><a href="/news/2020/03/24/demo-fraud-detection-2.html">Advanced Flink Application Patterns Vol.2: Dynamic Updates of Application Logic</a></li>
<li><a href="/ecosystem/2020/02/22/apache-beam-how-beam-runs-on-top-of-flink.html">Apache Beam: How Beam Runs on Top of Flink</a></li>
<li><a href="/news/2020/02/20/ddl.html">No Java Required: Configuring Sources and Sinks in SQL</a></li>
<li><a href="/news/2020/02/11/release-1.10.0.html">Apache Flink 1.10.0 Release Announcement</a></li>
<li><a href="/news/2020/02/07/a-guide-for-unit-testing-in-apache-flink.html">A Guide for Unit Testing in Apache Flink</a></li>
<li><a href="/news/2020/01/30/release-1.9.2.html">Apache Flink 1.9.2 Released</a></li>
<li><a href="/news/2020/01/29/state-unlocked-interacting-with-state-in-apache-flink.html">State Unlocked: Interacting with State in Apache Flink</a></li>
<li><a href="/news/2020/01/15/demo-fraud-detection.html">Advanced Flink Application Patterns Vol.1: Case Study of a Fraud Detection System</a></li>
</ul>
<hr>
<h2>2019</h2>
<ul id="markdown-toc">
<li><a href="/news/2019/12/11/release-1.8.3.html">Apache Flink 1.8.3 Released</a></li>
<li><a href="/news/2019/12/09/flink-kubernetes-kudo.html">Running Apache Flink on Kubernetes with KUDO</a></li>
<li><a href="/news/2019/11/25/query-pulsar-streams-using-apache-flink.html">How to query Pulsar Streams using Apache Flink</a></li>
<li><a href="/news/2019/10/18/release-1.9.1.html">Apache Flink 1.9.1 Released</a></li>
<li><a href="/feature/2019/09/13/state-processor-api.html">The State Processor API: How to Read, write and modify the state of Flink applications</a></li>
<li><a href="/news/2019/09/11/release-1.8.2.html">Apache Flink 1.8.2 Released</a></li>
<li><a href="/news/2019/09/10/community-update.html">Flink Community Update - September'19</a></li>
<li><a href="/news/2019/08/22/release-1.9.0.html">Apache Flink 1.9.0 Release Announcement</a></li>
<li><a href="/2019/07/23/flink-network-stack-2.html">Flink Network Stack Vol. 2: Monitoring, Metrics, and that Backpressure Thing</a></li>
<li><a href="/news/2019/07/02/release-1.8.1.html">Apache Flink 1.8.1 Released</a></li>
<li><a href="/2019/06/26/broadcast-state.html">A Practical Guide to Broadcast State in Apache Flink</a></li>
<li><a href="/2019/06/05/flink-network-stack.html">A Deep-Dive into Flink's Network Stack</a></li>
<li><a href="/2019/05/19/state-ttl.html">State TTL in Flink 1.8.0: How to Automatically Cleanup Application State in Apache Flink</a></li>
<li><a href="/2019/05/14/temporal-tables.html">Flux capacitor, huh? Temporal Tables and Joins in Streaming SQL</a></li>
<li><a href="/2019/05/03/pulsar-flink.html">When Flink & Pulsar Come Together</a></li>
<li><a href="/news/2019/04/17/sod.html">Apache Flink's Application to Season of Docs</a></li>
<li><a href="/news/2019/04/09/release-1.8.0.html">Apache Flink 1.8.0 Release Announcement</a></li>
<li><a href="/features/2019/03/11/prometheus-monitoring.html">Flink and Prometheus: Cloud-native monitoring of streaming applications</a></li>
<li><a href="/news/2019/03/06/ffsf-preview.html">What to expect from Flink Forward San Francisco 2019</a></li>
<li><a href="/news/2019/02/25/monitoring-best-practices.html">Monitoring Apache Flink Applications 101</a></li>
<li><a href="/news/2019/02/25/release-1.6.4.html">Apache Flink 1.6.4 Released</a></li>
<li><a href="/news/2019/02/15/release-1.7.2.html">Apache Flink 1.7.2 Released</a></li>
<li><a href="/news/2019/02/13/unified-batch-streaming-blink.html">Batch as a Special Case of Streaming and Alibaba's contribution of Blink</a></li>
</ul>
<hr>
<h2>2018</h2>
<ul id="markdown-toc">
<li><a href="/news/2018/12/26/release-1.5.6.html">Apache Flink 1.5.6 Released</a></li>
<li><a href="/news/2018/12/22/release-1.6.3.html">Apache Flink 1.6.3 Released</a></li>
<li><a href="/news/2018/12/21/release-1.7.1.html">Apache Flink 1.7.1 Released</a></li>
<li><a href="/news/2018/11/30/release-1.7.0.html">Apache Flink 1.7.0 Release Announcement</a></li>
<li><a href="/news/2018/10/29/release-1.6.2.html">Apache Flink 1.6.2 Released</a></li>
<li><a href="/news/2018/10/29/release-1.5.5.html">Apache Flink 1.5.5 Released</a></li>
<li><a href="/news/2018/09/20/release-1.6.1.html">Apache Flink 1.6.1 Released</a></li>
<li><a href="/news/2018/09/20/release-1.5.4.html">Apache Flink 1.5.4 Released</a></li>
<li><a href="/news/2018/08/21/release-1.5.3.html">Apache Flink 1.5.3 Released</a></li>
<li><a href="/news/2018/08/09/release-1.6.0.html">Apache Flink 1.6.0 Release Announcement</a></li>
<li><a href="/news/2018/07/31/release-1.5.2.html">Apache Flink 1.5.2 Released</a></li>
<li><a href="/news/2018/07/12/release-1.5.1.html">Apache Flink 1.5.1 Released</a></li>
<li><a href="/news/2018/05/25/release-1.5.0.html">Apache Flink 1.5.0 Release Announcement</a></li>
<li><a href="/news/2018/03/15/release-1.3.3.html">Apache Flink 1.3.3 Released</a></li>
<li><a href="/news/2018/03/08/release-1.4.2.html">Apache Flink 1.4.2 Released</a></li>
<li><a href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">An Overview of End-to-End Exactly-Once Processing in Apache Flink (with Apache Kafka, too!)</a></li>
<li><a href="/news/2018/02/15/release-1.4.1.html">Apache Flink 1.4.1 Released</a></li>
<li><a href="/features/2018/01/30/incremental-checkpointing.html">Managing Large State in Apache Flink: An Intro to Incremental Checkpointing</a></li>
</ul>
<hr>
<h2>2017</h2>
<ul id="markdown-toc">
<li><a href="/news/2017/12/21/2017-year-in-review.html">Apache Flink in 2017: Year in Review</a></li>
<li><a href="/news/2017/12/12/release-1.4.0.html">Apache Flink 1.4.0 Release Announcement</a></li>
<li><a href="/news/2017/11/22/release-1.4-and-1.5-timeline.html">Looking Ahead to Apache Flink 1.4.0 and 1.5.0</a></li>
<li><a href="/news/2017/08/05/release-1.3.2.html">Apache Flink 1.3.2 Released</a></li>
<li><a href="/features/2017/07/04/flink-rescalable-state.html">A Deep Dive into Rescalable State in Apache Flink</a></li>
<li><a href="/news/2017/06/23/release-1.3.1.html">Apache Flink 1.3.1 Released</a></li>
<li><a href="/news/2017/06/01/release-1.3.0.html">Apache Flink 1.3.0 Release Announcement</a></li>
<li><a href="/news/2017/05/16/official-docker-image.html">Introducing Docker Images for Apache Flink</a></li>
<li><a href="/news/2017/04/26/release-1.2.1.html">Apache Flink 1.2.1 Released</a></li>
<li><a href="/news/2017/04/04/dynamic-tables.html">Continuous Queries on Dynamic Tables</a></li>
<li><a href="/news/2017/03/29/table-sql-api-update.html">From Streams to Tables and Back Again: An Update on Flink's Table & SQL API</a></li>
<li><a href="/news/2017/03/23/release-1.1.5.html">Apache Flink 1.1.5 Released</a></li>
<li><a href="/news/2017/02/06/release-1.2.0.html">Announcing Apache Flink 1.2.0</a></li>
</ul>
<hr>
<h2>2016</h2>
<ul id="markdown-toc">
<li><a href="/news/2016/12/21/release-1.1.4.html">Apache Flink 1.1.4 Released</a></li>
<li><a href="/news/2016/12/19/2016-year-in-review.html">Apache Flink in 2016: Year in Review</a></li>
<li><a href="/news/2016/10/12/release-1.1.3.html">Apache Flink 1.1.3 Released</a></li>
<li><a href="/news/2016/09/05/release-1.1.2.html">Apache Flink 1.1.2 Released</a></li>
<li><a href="/news/2016/08/24/ff16-keynotes-panels.html">Flink Forward 2016: Announcing Schedule, Keynotes, and Panel Discussion</a></li>
<li><a href="/news/2016/08/11/release-1.1.1.html">Flink 1.1.1 Released</a></li>
<li><a href="/news/2016/08/08/release-1.1.0.html">Announcing Apache Flink 1.1.0</a></li>
<li><a href="/news/2016/05/24/stream-sql.html">Stream Processing for Everyone with SQL and Apache Flink</a></li>
<li><a href="/news/2016/05/11/release-1.0.3.html">Flink 1.0.3 Released</a></li>
<li><a href="/news/2016/04/22/release-1.0.2.html">Flink 1.0.2 Released</a></li>
<li><a href="/news/2016/04/14/flink-forward-announce.html">Flink Forward 2016 Call for Submissions Is Now Open</a></li>
<li><a href="/news/2016/04/06/cep-monitoring.html">Introducing Complex Event Processing (CEP) with Apache Flink</a></li>
<li><a href="/news/2016/04/06/release-1.0.1.html">Flink 1.0.1 Released</a></li>
<li><a href="/news/2016/03/08/release-1.0.0.html">Announcing Apache Flink 1.0.0</a></li>
<li><a href="/news/2016/02/11/release-0.10.2.html">Flink 0.10.2 Released</a></li>
</ul>
<hr>
<h2>2015</h2>
<ul id="markdown-toc">
<li><a href="/news/2015/12/18/a-year-in-review.html">Flink 2015: A year in review, and a lookout to 2016</a></li>
<li><a href="/news/2015/12/11/storm-compatibility.html">Storm Compatibility in Apache Flink: How to run existing Storm topologies on Flink</a></li>
<li><a href="/news/2015/12/04/Introducing-windows.html">Introducing Stream Windows in Apache Flink</a></li>
<li><a href="/news/2015/11/27/release-0.10.1.html">Flink 0.10.1 released</a></li>
<li><a href="/news/2015/11/16/release-0.10.0.html">Announcing Apache Flink 0.10.0</a></li>
<li><a href="/news/2015/09/16/off-heap-memory.html">Off-heap Memory in Apache Flink and the curious JIT compiler</a></li>
<li><a href="/news/2015/09/03/flink-forward.html">Announcing Flink Forward 2015</a></li>
<li><a href="/news/2015/09/01/release-0.9.1.html">Apache Flink 0.9.1 available</a></li>
<li><a href="/news/2015/08/24/introducing-flink-gelly.html">Introducing Gelly: Graph Processing with Apache Flink</a></li>
<li><a href="/news/2015/06/24/announcing-apache-flink-0.9.0-release.html">Announcing Apache Flink 0.9.0</a></li>
<li><a href="/news/2015/05/14/Community-update-April.html">April 2015 in the Flink community</a></li>
<li><a href="/news/2015/05/11/Juggling-with-Bits-and-Bytes.html">Juggling with Bits and Bytes</a></li>
<li><a href="/news/2015/04/13/release-0.9.0-milestone1.html">Announcing Flink 0.9.0-milestone1 preview release</a></li>
<li><a href="/news/2015/04/07/march-in-flink.html">March 2015 in the Flink community</a></li>
<li><a href="/news/2015/03/13/peeking-into-Apache-Flinks-Engine-Room.html">Peeking into Apache Flink's Engine Room</a></li>
<li><a href="/news/2015/03/02/february-2015-in-flink.html">February 2015 in the Flink community</a></li>
<li><a href="/news/2015/02/09/streaming-example.html">Introducing Flink Streaming</a></li>
<li><a href="/news/2015/02/04/january-in-flink.html">January 2015 in the Flink community</a></li>
<li><a href="/news/2015/01/21/release-0.8.html">Apache Flink 0.8.0 available</a></li>
<li><a href="/news/2015/01/06/december-in-flink.html">December 2014 in the Flink community</a></li>
</ul>
<hr>
<h2>2014</h2>
<ul id="markdown-toc">
<li><a href="/news/2014/11/18/hadoop-compatibility.html">Hadoop Compatibility in Flink</a></li>
<li><a href="/news/2014/11/04/release-0.7.0.html">Apache Flink 0.7.0 available</a></li>
<li><a href="/news/2014/10/03/upcoming_events.html">Upcoming Events</a></li>
<li><a href="/news/2014/09/26/release-0.6.1.html">Apache Flink 0.6.1 available</a></li>
<li><a href="/news/2014/08/26/release-0.6.html">Apache Flink 0.6 available</a></li>
</ul>
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