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# Incubator PMC report for May 2026

The Apache Incubator is the entry path into the ASF for projects and
codebases wishing to become part of the Foundation's efforts.

There are currently 28 podlings under incubation. In April, the Incubator made XX releases, and some release votes are currently underway. There were no additions or removals to IPMC membership.

Mailing list discussion in April focused primarily on release voting activity. A discussion on the use of MCP-based tooling to support Incubator oversight generated interest on the mailing list. A new incubation proposal for PIC Standard was discussed.

Caldera has shown very limited engagement with ASF since entering incubation. Project communication has not been taking place on the mailing lists, and initial setup tasks, including ICLAs, accounts, and SGA progress, have not been progressing visibly. The IPMC raised these concerns with the project, and the podling has confirmed it will change course to address them.

OpenServerless has been incubating for nearly two years without releasing an ASF release. Mailing list activity is almost entirely automated GitHub messages. No new committers or PPMC members have been elected since August 2024, and a private message sent to the podling about one month ago has not received a response. Mentor comments in the most recent report directly reflect these concerns. The IPMC has raised the question of whether to initiate a retirement discussion.

OzHera has not made an ASF release in over a year despite ongoing development activity. The project has been asked to outline the current status of release preparation, what is blocking the next release, and to address low mentor engagement across recent reporting periods.

PouchDB has been in incubation for 12 months with no ASF release. The project website at pouchdb.apache.org needs some work, and the previous project site at pouchdb.com still exists where it shouldn't. The IPMC raised these issues with the project's mentors, and the project is working to address them.

## Community

### New IPMC members:


### People who left the IPMC:


## New Podlings


## Podlings that failed to report, expected next month


## Graduations
  - list podling here

  The board has motions for the following:

  - Your podling here?

## Releases

  The following releases entered distribution during the month of
  April:


## IP Clearance


## Legal / Trademarks


## Infrastructure


## Miscellaneous


## Credits

## Table of Contents  
[Burr](#burr)  
[Caldera](#caldera)  
[Casbin](#casbin)  
[Cloudberry](#cloudberry)  
[Fesod](#fesod)  
[GeaFlow](#geaflow)  
[GraphAr](#graphar)  
[Hamilton](#hamilton)  
[Pony Mail](#pony mail)  
[Seata](#seata)  
[Texera](#texera)  
[Toree](#toree)  
[XTable](#xtable)  


--------------------
## Burr

Burr is a lightweight in-process python framework that standardizes the
expression and execution of state machines as action-driven graphs, while
making graph             execution easily observable. It is particularly
suited for AI agent workflows,             simulations, and other dynamic
systems, and comes with a self-hostable observability UI             that
integrates with OpenTelemetry.

Burr has been incubating since 2025-05-24.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (burr) Kevin Ratnasekera  
     Comments:  
  - [ ] (burr) Ayush Saxena  
     Comments:  
  - [ ] (burr) PJ Fanning  
     Comments:  
  - [ ] (burr) Jarek Potiuk  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Caldera

Caldera provides a modular platform for modeling, scripting, and executing
adversary behavior. It allows users to construct emulation plans, provides
agents for             communicating with the command and control server,
and enables users to evaluate             security detections in a
structured, scalable, and repeatable way. With the use of             plug-
ins and community-contributed features, Caldera supports a range of use
cases             including adversary emulation, purple teaming, detection
engineering, and continuous             security validation. Using Caldera,
defenders can emulate known threat actor behavior             and perform
other red team activity to evaluate their organization’s defensive
capabilities, test analytics, and find detection gaps. As a modular tool
based on the             MITRE ATT&CK framework, Caldera is designed to be
extensible, intelligence-driven,             and automation-friendly.

Caldera has been incubating since 2025-12-19.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (caldera) Kevin Ratnasekera  
     Comments:  
  - [ ] (caldera) Francis Chuang  
     Comments:  
  - [ ] (caldera) PJ Fanning  
     Comments:  
  - [ ] (caldera) Gordon King  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Casbin

Casbin is a powerful, open-source access control framework that provides a
unified, model-driven approach to authorization.

Casbin has been incubating since 2026-02-07.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (casbin) Hao Ding  
     Comments:  
  - [ ] (casbin) Huajie Wang  
     Comments:  
  - [ ] (casbin) Hulk Lin  
     Comments:  
  - [ ] (casbin) Jerry Shao  
     Comments:  
  - [ ] (casbin) Zili Chen  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Cloudberry

 Cloudberry Database, built on the latest PostgreSQL kernel, is one of the
most             advanced and mature open-source MPP (Massively Parallel
Processing) databases available.

Cloudberry has been incubating since 2024-10-11.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (cloudberry) Roman Shaposhnik  
     Comments:  
  - [ ] (cloudberry) Willem Ning Jiang  
     Comments:  
  - [ ] (cloudberry) Kent Yao  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Fesod

Fesod is a high-performance and memory-efficient Java library for reading
and             writing Excel files, designed to simplify development and
ensure reliability.

Fesod has been incubating since 2025-09-17.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (fesod) tison  
     Comments:  
  - [ ] (fesod) Dave Fisher  
     Comments:  
  - [ ] (fesod) Huajie Wang  
     Comments:  
  - [ ] (fesod) PJ Fanning  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## GeaFlow

GeaFlow is a distributed stream and batch integration graph compute engine.

GeaFlow has been incubating since 2025-06-06.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (geaflow) Willem Ning Jiang  
     Comments:  
  - [ ] (geaflow) Xin Wang  
     Comments:  
  - [ ] (geaflow) Jingsong Lee  
     Comments:  
  - [ ] (geaflow) Paul Klingelhuber  
     Comments:  
  - [ ] (geaflow) Justin Mclean  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## GraphAr

GraphAr is an open-source and language-independent data file format designed
for efficient graph data storage and retrieval.

GraphAr has been incubating since 2024-03-25.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (graphar) Calvin Kirs  
     Comments:  
  - [ ] (graphar) tison  
     Comments:  
  - [ ] (graphar) Xiaoqiao He  
     Comments:  
  - [ ] (graphar) Yu Li  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Hamilton

Hamilton is a lightweight in-process framework to define, execute, and
observe             directed acyclic graphs (DAGs) that express data
transformations. In Hamilton, one can             express complex DAGs of
transformations, e.g. from dataframe transformations (using
pandas, polars, PySpark), machine learning pipelines, through to regular
software             engineering API request and LLM API based workflows.
Observability hooks are built into             the framework. The Hamilton
UI is a self-hostable service to capture observability             output
from workflow runs.

Hamilton has been incubating since 2025-04-12.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (hamilton) Kevin Ratnasekera  
     Comments:  
  - [ ] (hamilton) Ayush Saxena  
     Comments:  
  - [ ] (hamilton) PJ Fanning  
     Comments:  
  - [ ] (hamilton) Jarek Potiuk  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Pony Mail

Pony Mail is a mail-archiving, archive viewing, and interaction service,
that             can be integrated with many email platforms.

Pony Mail has been incubating since 2016-05-27.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (ponymail) John D. Ament  
     Comments:  
  - [ ] (ponymail) Dave Fisher  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Seata

Seata(Simple Extensible Autonomous Transaction Architecture)is an easy-to-
use             and high-performance distributed transaction solution, used
to solve the data             consistency problem.

Seata has been incubating since 2023-10-29.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (seata) Sheng Wu  
     Comments:  
  - [ ] (seata) Justin Mclean  
     Comments:  
  - [ ] (seata) Huxing Zhang  
     Comments:  
  - [ ] (seata) Heng Du  
     Comments:  
  - [ ] (seata) Xin Wang  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Texera

Texera is an open-source system to support collaborative data science, AI,
and             ML using GUI-based workflows. Our vision is to develop a
system to support cloud             platforms on which users can easily
analyze data and use AI/ML techniques provided as             operators.
Users with various backgrounds, irrespective of whether they know coding or
not, can collaborate on the same project to construct a pipeline.
Experienced users can             use programming languages such as Python,
R, Java, and Scala to implement customized             computation logic.
The platform allows users to pause the execution of a workflow to
investigate the operator states, and resume the execution at a later time.
The platform             can be used by a research community to publish
valuable resources such as data sets,             workflows, and ML models
to share their domain-specific knowledge and support
reproducibility of scientific research. The platform also allows users to
elastically             request computing resources from public clouds for
computationally-intensive tasks.

Texera has been incubating since 2025-04-12.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (texera) Cezar Andrei  
     Comments:  
  - [ ] (texera) Gordon King  
     Comments:  
  - [ ] (texera) PJ Fanning  
     Comments:  
  - [ ] (texera) Ian Maxon  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## Toree

Toree provides applications with a mechanism to interactively and remotely
access Apache Spark.

Toree has been incubating since 2015-12-02.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (toree) Luciano Resende  
     Comments:  
  - [ ] (toree) Ryan Blue  
     Comments:  
  - [ ] (toree) Weiwei Yang  
     Comments:  

### IPMC/Shepherd notes:



--------------------
## XTable

XTable is an omni-directional converter for table formats that facilitates
interoperability across data processing systems and query engines.

XTable has been incubating since 2024-02-11.

### Three most important unfinished issues to address before graduating:

  1.
  2.
  3.

### Are there any issues that the IPMC or ASF Board need to be aware of?


### How has the community developed since the last report?


### How has the project developed since the last report?


### How would you assess the podling's maturity?
Please feel free to add your own commentary.

  - [ ] Initial setup
  - [ ] Working towards first release
  - [ ] Community building
  - [ ] Nearing graduation
  - [ ] Other:

### Date of last release:

  XXXX-XX-XX

### When were the last committers or PPMC members elected?


### Have your mentors been helpful and responsive?
Are things falling through the cracks? If so, please list any
open issues that need to be addressed.

### Is the PPMC managing the podling's brand / trademarks?
Are 3rd parties respecting and correctly using the podlings
name and brand? If not what actions has the PPMC taken to
correct this? Has the VP, Brand approved the project name?

### Signed-off-by:

  - [ ] (xtable) Jesús Camacho Rodríguez  
     Comments:  
  - [ ] (xtable) Stamatis Zampetakis  
     Comments:  
  - [ ] (xtable) Jean-Baptiste Onofré  
     Comments:  

### IPMC/Shepherd notes: