StephanEwen commented on a change in pull request #468:
URL: https://github.com/apache/flink-web/pull/468#discussion_r717525911
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File path: _posts/2021-09-21-release-1.14.0.md
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+---
+layout: post
+title: "Apache Flink 1.14.0 Release Announcement"
+date: 2021-09-21T08:00:00.000Z
+categories: news
+authors:
+- joemoe:
+ name: "Johannes Moser"
+
+excerpt: The Apache Flink community is excited to announce the release of
Flink 1.14.0! More than 200 contributor worked on over 1,000 issues. The
release brings exciting new features like a more seamless streaming/batch
integration, automatic network memory tuning, a hybrid source to switch data
streams between storgage systems (e.g., Kafka/S3), Fine-grained resource
management, PyFlink performance and debugging enhancements, and a Pulsar
connector.
+
+---
+
+The Apache Software Foundation recently released its annual report and Apache
Flink once again made
+it on the list of the top 5 most active projects! This remarkable
+activity also shows in the new 1.14.0 release. Once again, more than 200
contributors worked on
+over 1,000 issues. We are proud of how this community is consistently moving
the project forward.
+
+This release brings many new features and improvements in areas such as the
SQL API, more connector support, checkpointing, and PyFlink.
+A major area of changes in this release is the integrated streaming & batch
experience. We believe
+that, in practice, unbounded stream processing goes hand-in-hand with bounded-
and batch processing tasks in practice,
+because many use cases require processing historic data from various sources
alongside streaming data.
+Examples are data exploration when developing new applications, bootstrapping
state for new applications, training
+models to be applied in a streaming application, re-processing data after
fixes/upgrades, and .
+
+In Flink 1.14, we finally made it possible to **mix bounded and unbounded
streams in an application**:
+Flink now supports taking checkpoints of applications that are partially
running and partially finished (some
+operators reached the end of the bounded inputs). Additionally, **bounded
streams now take a final checkpoint**
+when reaching their end to ensure smooth committing of results in sinks.
+
+The **batch execution mode now supports programs that use a mixture of the
DataStream API and the SQL/Table API**
+(previously only pure Table/SQL or DataStream programs).
+
+The unified Source and Sink APIs have gotten an update, and we started
**consolidating the connector ecosystem around the unified APIs**. We added a
new **hybrid source** can bridge between multiple storage systems.
+You can now do things like read old data from Amazon S3 and then switch over
to Apache Kafka.
+
+Furthermore, this release takes another step in our initiative of making Flink
more self-tuning and
+to require less Stream-Processor-specific knowledge to operate. We started
that initiative in the previous
+release with [Reactive
Scaling](/news/2021/05/03/release-1.13.0.html#reactive-scaling) and are now
+adding **automatic network memory tuning** (*a.k.a. Buffer Debloating*). This
feature speeds up checkpoints
+under load without sacrificing performance or increasing checkpoint size, by
continuously adjusting the
+network buffering to ensure best throughput while having minimal in-flight
data. See the
+[Buffer Debloating section](#buffer-debloating) for details.
+
+In addition, this release furthers our initiative in making Flink more
self-tuning. We aim make Flink
+easier to operate without necessarily requiring a lot of
Stream-Processor-specific knowledge.
+We started this initiative in the previous release with [reactive
scaling](/news/2021/05/03/release-1.13.0.html#reactive-scaling)
+and are now adding **automatic network memory tuning** (*a.k.a. Buffer
Debloating*).
+This feature speeds up checkpoints under high load without sacrificing
performance or
+increasing checkpoint size by continuously adjusting network buffers to ensure
the best
+throughput while having minimal in-flight data. See the [Buffer Debloating
section](#buffer-debloating)
+for more details.
Review comment:
fixed
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