[Website]: Blog announcing DataFusion top level project (#512)

This is a blog post about the move of DataFusion to a top level Apache
project. I expect this is the last blog post on the arrow-site about
DataFusion.

In my opinion, being part of Arrow has truly been a transformative
experience for DataFusion


Closes apache/datafusion#10135
Closes apache/datafusion#9691

_posts/2025-05-07-datafusion-tlp.md

@@ -0,0 +1,100 @@
+---
+layout: post
+title: "Announcing Apache Arrow DataFusion is now Apache DataFusion"
+date: "2024-05-07 00:00:00"
+author: pmc
+categories: [subprojects]
+---
+
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+http://www.apache.org/licenses/LICENSE-2.0
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+{% endcomment %}
+-->
+
+
+
+## Introduction
+
+TLDR; [Apache Arrow] DataFusion --> [Apache DataFusion]
+
+The Arrow PMC and newly created DataFusion PMC are happy to announce that as of
+April 16, 2024 the Apache Arrow DataFusion subproject is now a top level
+[Apache Software Foundation] project.
+
+[Apache Arrow]: https://arrow.apache.org/
+[Apache DataFusion]: https://datafusion.apache.org/
+[Apache Software Foundation]: https://www.apache.org/
+
+## Background
+
+Apache DataFusion is a fast, extensible query engine for building high-quality
+data-centric systems in Rust, using the Apache Arrow in-memory format.
+
+When DataFusion was [donated to the Apache Software Foundation] in 2019, the
+DataFusion community was not large enough to stand on its own and the Arrow
+project agreed to help support it. The community has grown significantly since
+2019, benefiting immensely from being part of Arrow and following [The Apache
+Way].
+
+[donated to the Apache Software Foundation]: https://arrow.apache.org/blog/2019/02/04/datafusion-donation/
+[The Apache Way]: https://www.apache.org/theapacheway/
+
+## Why now?
+
+The community [discussed graduating to a top level project publicly] for almost
+a year, as the project seemed ready to stand on its own and would benefit from
+more focused governance. For example, earlier in DataFusion's life many
+contributed to both [arrow-rs] and DataFusion, but as DataFusion has matured many
+contributors, committers and PMC members focused more and more exclusively on
+DataFusion.
+
+[discussed graduating to a top level project publicly]: https://github.com/apache/datafusion/discussions/6475
+[arrow-rs]: https://github.com/apache/arrow-rs
+
+## Looking forward
+
+The future looks bright. There are now [10s of known projects built with
+DataFusion], and that number continues to grow. We recently held our [first in
+person meetup] passed [5000 stars] on GitHub, [wrote a paper that was accepted
+at SIGMOD 2024], and began work on [Comet], an [Apache Spark] accelerator
+[initially donated by Apple].
+
+Thank you to everyone in the Arrow community who helped DataFusion grow and
+mature over the years, and we look forward to continuing our collaboration as
+projects. All future blogs and announcements will be posted on the [Apache
+DataFusion] website.
+
+
+[10s of known projects built with DataFusion]: https://datafusion.apache.org/user-guide/introduction.html#known-users
+[first in person meetup]: https://github.com/apache/datafusion/discussions/8522
+[5000 stars]: https://github.com/apache/datafusion/stargazers
+[wrote a paper that was accepted at SIGMOD 2024]: https://github.com/apache/datafusion/issues/8373#issuecomment-2025133714
+[Comet]: https://github.com/apache/datafusion-comet
+[Apache Spark]: https://spark.apache.org/
+[initially donated by Apple]: https://arrow.apache.org/blog/2024/03/06/comet-donation/
+
+## Get Involved
+
+If you are interested in joining the community, we would love to have you join
+us. Get in touch using [Communication Doc] and learn how to get involved in the
+[Contributor Guide]. We welcome everyone to try DataFusion on their
+own data and projects and let us know how it goes, contribute suggestions,
+documentation, bug reports, or a PR with documentation, tests or code.
+
+
+[communication doc]: https://datafusion.apache.org/contributor-guide/communication.html
+[Contributor Guide]: https://datafusion.apache.org/contributor-guide/index.html