December 2025 DataFusion ASF Board Report

[alamb]

Related Items:

• Coordination Google Doc: https://docs.google.com/document/d/1UNZNLOGm4FiJ8l_8q6tIJkvyD2nmSpDi4SmtOAIU8qc/
• Mailing List Thread: https://lists.apache.org/thread/kwxhno7xl7gyzb3mfcmyvffqflqpm85o

Is your feature request related to a problem or challenge?

Per https://whimsy.apache.org/roster/committee/datafusion the DataFusion ASF board report schedule is

March, June, September, December

Describe the solution you'd like

I would like to draft a board report for the ASF board meeting, ideally with community help.

The meetings are typically in the second or third week of the month

Describe alternatives you've considered

• make a google doc (in addition to this issue) that people can add relevant content to
• Solicit community feedback for the various sub projects
• The chair (me for the time being) submits it to the board
• Create a ticket for the next report: March 2026 DataFusion ASF Board Report #19214

past examples:

• September 2025 ASF Board Report #16259
• June 2025 ASF Board Report #15182

Additional context

No response

[alamb]

FYI @timsaucer and @andygrove @milenkovicm and @iffyio as subproject leads - I made a draft ASF board report (below) . If you have anything to add, please let me know or add it directly to the doc (it is due in 2 days at 2025-12-10)

https://docs.google.com/document/d/1UNZNLOGm4FiJ8l_8q6tIJkvyD2nmSpDi4SmtOAIU8qc/

[comphead]

Thanks @alamb I have corrected release versions for Comet

[timsaucer]

Thanks Andrew! I've added some text on datafusion-python.

…

On Mon, Dec 8, 2025 at 7:42 PM Oleks V ***@***.***> wrote: *comphead* left a comment (apache/datafusion#17506) <#17506 (comment)> Thanks @alamb <https://github.com/alamb> I have corrected release versions for Comet — Reply to this email directly, view it on GitHub <#17506 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AF6J26CHZPBQYYBB7L5GUI34AXBC5AVCNFSM6AAAAACGFAAR5CVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMMRYGUZDSMRVGU> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[alamb]

Board report was submitted. Final content below:

Description:

The mission of Apache DataFusion is the creation and maintenance of software
related to an extensible query engine

Project Status:

Current project status: New + Ongoing (high activity)
Issues for the board: None

Membership Data:

Apache DataFusion was founded 2024-04-16 (2 years ago)
There are currently 54 committers and 20 PMC members in this project.
The Committer-to-PMC ratio is roughly 7:3.

Community changes, past quarter:

• Jeffrey Vo was added to the PMC on 2025-11-23
• Yongting You was added to the PMC on 2025-11-23
• Gabriel Musat was added as committer on 2025-10-31
• Raz Luvaton was added as committer on 2025-10-01
• Zhen Wang was added as committer on 2025-10-02
• Yoav Cohen was added as committer on 2025-09-17

Project Activity:

Note that almost all communication for DataFusion and its subprojects happens
on github and so our dev mailing list traffic is fairly light.

DataFusion core

https://github.com/apache/datafusion

• 51.0.0 was released on 2025-11-19.
• 50.3.0 was released on 2025-10-24.
• 50.1.0 was released on 2025-10-02.
• 50.0.0 was released on 2025-09-16.

The most recent release (~ 2 months of contributions) had 128 distinct
contributors, which we think is a record and shows the project is able to
attract and sustain a large community. Development is now largely focused on
more advanced optimizations, and we have been able to attract a significant
amount of engineering investment from the community

We have gotten better about writing about our releases externally, including
several blogs:

https://datafusion.apache.org/blog/2025/11/25/datafusion-51.0.0
https://datafusion.apache.org/blog/2025/09/29/datafusion-50.0.0
https://datafusion.apache.org/blog/2025/09/21/custom-types-using-metadata
https://datafusion.apache.org/blog/2025/09/10/dynamic-filters

We have also held several in person meetups in various locations, which have
been successful in bringing together contributors.

Finally, as always, the biggest bottleneck for increasing project velocity is
reviewer capacity. The rise of AI powered coding assistants has made this
bottleneck more acute as it makes it easier to create large PRs. The community
has written up guidelines for AI assisted contributions which seems to have
improved the overall PR quality.

contributor-guide/index.html#ai-assisted-contributions

Sub project: DataFusion Python

https://github.com/apache/datafusion-python

• DATAFUSION-PYTHON-50.1.0 was released on 2025-10-20.
• DATAFUSION-PYTHON-50.0.0 was released on 2025-09-23.

The DataFusion Python project has mostly focused on quality of life
improvements, including adding support for SQL expressions within DataFrame
operations. We have seen a slight increase in issues reported lately,
demonstrating growth in the user community.

Sub project: DataFusion Comet

https://github.com/apache/datafusion-comet

• COMET-0.12.0 was released on 2025-12-01.
• COMET-0.11.0 was released on 2025-10-16.
• COMET-0.10.0 was released on 2025-09-16.

You can read about the recent happenings in Comet in the blogs:

​​https://datafusion.apache.org/blog/2025/12/04/datafusion-comet-0.12.0
https://datafusion.apache.org/blog/2025/10/21/datafusion-comet-0.11.0
https://datafusion.apache.org/blog/2025/09/16/datafusion-comet-0.10.0

Sub project: DataFusion Ballista

https://github.com/apache/datafusion-ballista

• BALLISTA-50.0.0 was released on 2025-11-22.
• BALLISTA-49.0.0 was released on 2025-10-06.

Sub project: sqlparser-rs

https://github.com/apache/datafusion-sqlparser-rs

• SQLPARSER-0.59.0 was released on 2025-09-24.
• SQLPARSER-0.60.0 was released on 2025-12-07.

Ifeanyi Ubah (iffyio) continues to review most PRs in this repo. We added a
new committer Yoav Cohen focused on sqlparser in an attempt to increase the
review bandwidth available.

Community Health:

While we as always struggle with code review capacity,
we have many active committers, and the community in general helps each
other out with reviews. We continue to actively grow our committer
and PMC ranks.

We continue to merge multiple PRs a day from multiple committers and
have contributions from a wide variety of individuals with a wide
variety of employers.