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<h1>Blog</h1>
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<article>
<h2 class="blog-title"><a href="/news/2016/03/08/release-1.0.0.html">Announcing Apache Flink 1.0.0</a></h2>
<p>08 Mar 2016
</p>
<p><p>The Apache Flink community is pleased to announce the availability of the 1.0.0 release. The community put significant effort into improving and extending Apache Flink since the last release, focusing on improving the experience of writing and executing data stream processing pipelines in production.</p>
</p>
<p><a href="/news/2016/03/08/release-1.0.0.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2016/02/11/release-0.10.2.html">Flink 0.10.2 Released</a></h2>
<p>11 Feb 2016
</p>
<p><p>Today, the Flink community released Flink version <strong>0.10.2</strong>, the second bugfix release of the 0.10 series.</p>
</p>
<p><a href="/news/2016/02/11/release-0.10.2.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/12/18/a-year-in-review.html">Flink 2015: A year in review, and a lookout to 2016</a></h2>
<p>18 Dec 2015 by Robert Metzger (<a href="https://twitter.com/">@rmetzger_</a>)
</p>
<p><p>With 2015 ending, we thought that this would be good time to reflect on the amazing work done by the Flink community over this past year, and how much this community has grown.</p></p>
<p><a href="/news/2015/12/18/a-year-in-review.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/12/11/storm-compatibility.html">Storm Compatibility in Apache Flink: How to run existing Storm topologies on Flink</a></h2>
<p>11 Dec 2015 by Matthias J. Sax (<a href="https://twitter.com/">@MatthiasJSax</a>)
</p>
<p>In this blog post, we describe Flink's compatibility package for <a href="https://storm.apache.org">Apache Storm</a> that allows to embed Spouts (sources) and Bolts (operators) in a regular Flink streaming job. Furthermore, the compatibility package provides a Storm compatible API in order to execute whole Storm topologies with (almost) no code adaption.</p>
<p><a href="/news/2015/12/11/storm-compatibility.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/12/04/Introducing-windows.html">Introducing Stream Windows in Apache Flink</a></h2>
<p>04 Dec 2015 by Fabian Hueske (<a href="https://twitter.com/">@fhueske</a>)
</p>
<p><p>The data analysis space is witnessing an evolution from batch to stream processing for many use cases. Although batch can be handled as a special case of stream processing, analyzing never-ending streaming data often requires a shift in the mindset and comes with its own terminology (for example, “windowing” and “at-least-once”/”exactly-once” processing). This shift and the new terminology can be quite confusing for people being new to the space of stream processing. Apache Flink is a production-ready stream processor with an easy-to-use yet very expressive API to define advanced stream analysis programs. Flink's API features very flexible window definitions on data streams which let it stand out among other open source stream processors.</p>
<p>In this blog post, we discuss the concept of windows for stream processing, present Flink's built-in windows, and explain its support for custom windowing semantics.</p></p>
<p><a href="/news/2015/12/04/Introducing-windows.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/11/27/release-0.10.1.html">Flink 0.10.1 released</a></h2>
<p>27 Nov 2015
</p>
<p><p>Today, the Flink community released the first bugfix release of the 0.10 series of Flink.</p>
</p>
<p><a href="/news/2015/11/27/release-0.10.1.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/11/16/release-0.10.0.html">Announcing Apache Flink 0.10.0</a></h2>
<p>16 Nov 2015
</p>
<p><p>The Apache Flink community is pleased to announce the availability of the 0.10.0 release. The community put significant effort into improving and extending Apache Flink since the last release, focusing on data stream processing and operational features. About 80 contributors provided bug fixes, improvements, and new features such that in total more than 400 JIRA issues could be resolved.</p>
</p>
<p><a href="/news/2015/11/16/release-0.10.0.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/09/16/off-heap-memory.html">Off-heap Memory in Apache Flink and the curious JIT compiler</a></h2>
<p>16 Sep 2015 by Stephan Ewen (<a href="https://twitter.com/">@stephanewen</a>)
</p>
<p><p>Running data-intensive code in the JVM and making it well-behaved is tricky. Systems that put billions of data objects naively onto the JVM heap face unpredictable OutOfMemoryErrors and Garbage Collection stalls. Of course, you still want to to keep your data in memory as much as possible, for speed and responsiveness of the processing applications. In that context, &quot;off-heap&quot; has become almost something like a magic word to solve these problems.</p>
<p>In this blog post, we will look at how Flink exploits off-heap memory. The feature is part of the upcoming release, but you can try it out with the latest nightly builds. We will also give a few interesting insights into the behavior for Java's JIT compiler for highly optimized methods and loops.</p></p>
<p><a href="/news/2015/09/16/off-heap-memory.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/09/03/flink-forward.html">Announcing Flink Forward 2015</a></h2>
<p>03 Sep 2015
</p>
<p><p><a href="http://2015.flink-forward.org/">Flink Forward 2015</a> is the first
conference with Flink at its center that aims to bring together the
Apache Flink community in a single place. The organizers are starting
this conference in October 12 and 13 from Berlin, the place where
Apache Flink started.</p>
</p>
<p><a href="/news/2015/09/03/flink-forward.html">Continue reading &raquo;</a></p>
</article>
<hr>
<article>
<h2 class="blog-title"><a href="/news/2015/09/01/release-0.9.1.html">Apache Flink 0.9.1 available</a></h2>
<p>01 Sep 2015
</p>
<p><p>The Flink community is happy to announce that Flink 0.9.1 is now available.</p>
</p>
<p><a href="/news/2015/09/01/release-0.9.1.html">Continue reading &raquo;</a></p>
</article>
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<!-- Blog posts by YEAR -->
<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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