infoverload commented on a change in pull request #468:
URL: https://github.com/apache/flink-web/pull/468#discussion_r716770063
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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! Around xxx contributors worked on over xxxx issues to TODO.
+---
+
+Just a couple of days ago the Apache Software Foundation announced its annual
report and Apache
+Flink was again in the Top 5 of the most active projects in all relevant
categories. This remarkable
+activity is also reflected in this 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.
+
+The release brings many cool improvements, from SQL to connectors,
checkpointing, and PyFlink.
+A big area of changes in this release is the integrated streaming & batch
experience. We believe
+that unbounded stream processing goes hand-in-hand with bounded- and batch
processing tasks in practice.
+Data exploration when developing new applications, bootstrapping state for new
applications, training
+models to be applied in the streaming application, re-processing data after
fixes/upgrades, and many
+other use cases require processing historic data from various sources next to
the streaming data.
+
+In Flink 1.14, we finally made it possible to **mix bounded and unbounded
streams in an application**;
+Flink can now take checkpoints of applications that is 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 works for programs that mix DataStream &
Table/SQL** (previously only
+pure Table/SQL or DataStream programs). The unified Source and Sink APIs have
made strides ahead,
+we started **consolidating the connector ecosystem around the unified APIs**,
and added a **hybrid source**
+that can bridge between multiple storage systems, like start reading old data
from S3 and switch over
+to Kafka later.
+
+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.
+
+There are many more improvements and new additions throughout various
components, as we discuss below.
+We also had to say goodbye to some features that have been superceded by newer
ones in recent releases,
+most prominently we are **removing the old SQL execution engine**.
+
+We hope you like the new release and we'd be eager to learn about your
experience with it, which yet
+unsolved problems it solves, what new use-cases it unlocks for you.
Review comment:
```suggestion
We had to say goodbye to some features that have been superseded by newer
ones in recent releases,
such as the **removal of the old SQL execution engine**.
There are a lot more improvements and new additions throughout various
components in Flink and they will be discussed in more detail below. We hope
that you like the new release and that it helps you solve new problems and
unlock new use cases. :) And as always, we would appreciate any sort of
feedback.
```
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