opendp · cbaycity · Oct 8, 2025 · Oct 11, 2025 · TedTed · Oct 9, 2025
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
diff --git a/LICENSE b/LICENSE
@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2025 Tumult Labs
+   Copyright [yyyy] [name of copyright owner]
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

diff --git a/NOTICE b/NOTICE
@@ -1,5 +1,5 @@
 Tumult Core
-Copyright Tumult Labs 2025
+
 
 This product contains software developed by
 Tumult Labs <https://tmlt.io/>.
diff --git a/README.md b/README.md
@@ -4,13 +4,6 @@ Tumult Core is a programming framework for implementing [differentially private]
 
 The design of Tumult Core is based on the design proposed in the [OpenDP White Paper](https://projects.iq.harvard.edu/files/opendifferentialprivacy/files/opendp_white_paper_11may2020.pdf), and can automatically verify the privacy properties of algorithms constructed from Tumult Core components. Tumult Core is scalable, includes a wide variety of components, and supports multiple privacy definitions.
 
-
-## 🚨 Important Update: the Tumult Labs Team is Joining LinkedIn 🚨
-The [Tumult Labs team has joined LinkedIn](https://www.linkedin.com/pulse/whats-next-us-tumult-labs-gerome-miklau-zmpye)! 🎉 As part of this transition, we are exploring options for the future of Tumult Core, including finding a new home for the project. 🏡
-We greatly appreciate the community’s support and contributions. If your organization is interested in maintaining or adopting Tumult Core, please reach out! 📩
-For now, the repository remains available, and we encourage users to continue engaging with the project. We’ll provide updates as soon as we have more to share.
-— The Tumult Labs Team 💙
-
 ## Installation
 
 See the [installation instructions in the documentation](https://docs.tmlt.dev/core/latest/installation.html#installation-instructions) for information about setting up prerequisites such as Spark and Java.
@@ -27,7 +20,7 @@ The full documentation is located at https://docs.tmlt.dev/core/latest.
 
 ## Support
 
-If you have any questions/concerns, please [create an issue](https://gitlab.com/tumult-labs/core/-/issues) or reach out to us on [Slack](https://tmltdev.slack.com/join/shared_invite/zt-1bky0mh9v-vOB8azKAVoxmzJDUdWd5Wg#).
+If you have any questions/concerns, please [create an issue](https://github.com/opendp/tumult-core/issues) or reach out to us on [Slack](https://opendp.slack.com/join/shared_invite/zt-1aca9bm7k-hG7olKz6CiGm8htI2lxE8w#/shared-invite/email).
 
 ## Contributing
 

diff --git a/benchmark/benchmarking_utils.py b/benchmark/benchmarking_utils.py
@@ -1,7 +1,7 @@
 """Common utility functions for benchmarking scripts."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 # pylint: disable=attribute-defined-outside-init
 

diff --git a/benchmark/bounds.py b/benchmark/bounds.py
@@ -1,7 +1,7 @@
 """Benchmarking script for bounds aggregation."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 from math import log
 from random import randint

diff --git a/benchmark/count_sum.py b/benchmark/count_sum.py
@@ -1,7 +1,7 @@
 """Benchmarking script for spark-based count and sum aggregations."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 from math import log
 from random import randint

diff --git a/benchmark/noise_mechanism.py b/benchmark/noise_mechanism.py
@@ -1,7 +1,7 @@
 """Benchmarking script for adding noise to dataframes."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import time
 

diff --git a/benchmark/private_join.py b/benchmark/private_join.py
@@ -1,7 +1,7 @@
 """Benchmarking module for PrivateJoin and Truncation transformations."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import itertools
 from random import randint

diff --git a/benchmark/public_join.py b/benchmark/public_join.py
@@ -1,7 +1,7 @@
 """Benchmarking module for PublicJoin."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import time
 from random import randint

diff --git a/benchmark/quantile.py b/benchmark/quantile.py
@@ -1,6 +1,6 @@
 """Benchmarking quantile script for the OpenDP-based privacy framework."""
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import time
 from random import randint

diff --git a/benchmark/sparkflatmap.py b/benchmark/sparkflatmap.py
@@ -1,7 +1,7 @@
 """Benchmarking script for Map."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import time
 from random import choice, randint

diff --git a/benchmark/sparkmap.py b/benchmark/sparkmap.py
@@ -1,7 +1,7 @@
 """Benchmarking script for Map."""
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import time
 from random import randint

diff --git a/doc/_static/css/custom.css b/doc/_static/css/custom.css
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: Apache-2.0 */
-/* Copyright Tumult Labs 2025 */
+/*  */
 
 /* Override the color of hovered links, as the default is kind of out of place
    and distracting. This makes it so the links don't change color when hovered,

diff --git a/doc/_static/js/version-banner.js b/doc/_static/js/version-banner.js
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: Apache-2.0 */
-/* Copyright Tumult Labs 2025 */
+/*  */
 
 function injectBanner(content) {
   var body = document.getElementsByClassName('bd-article')[0];

diff --git a/doc/_templates/build-info.html b/doc/_templates/build-info.html
@@ -1,3 +1,3 @@
 <!-- SPDX-License-Identifier: Apache-2.0 -->
-<!-- Copyright Tumult Labs 2025 -->
+<!--  -->
 Built from {{ commit_hash }} at {{ build_time }}.
diff --git a/doc/_templates/layout.html b/doc/_templates/layout.html
@@ -1,5 +1,5 @@
 <!-- SPDX-License-Identifier: Apache-2.0 -->
-<!-- Copyright Tumult Labs 2025 -->
+<!--  -->
 {% extends "!layout.html" %}
 {# pydata-sphinx-theme currently only supports Google Analytics. This is a
     workaround until pydata-sphinx-theme v0.10.0 is released, which adds

diff --git a/doc/_templates/package-name.html b/doc/_templates/package-name.html
@@ -1,3 +1,3 @@
 <!-- SPDX-License-Identifier: Apache-2.0 -->
-<!-- Copyright Tumult Labs 2025 -->
+<!--  -->
 <h3>{{ project }}</h3>
diff --git a/doc/_templates/sidebar-nav-bs.html b/doc/_templates/sidebar-nav-bs.html
@@ -1,5 +1,5 @@
 <!-- SPDX-License-Identifier: Apache-2.0 -->
-<!-- Copyright Tumult Labs 2025 -->
+<!--  -->
 {# Sidebar navigation component, based on [1] but with the "Section Navigation"
    header removed.
    [1] https://github.com/pydata/pydata-sphinx-theme/blob/29a0d375f49cc7ee9411797349ae14951692eb63/src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/sidebar-nav-bs.html

diff --git a/doc/additional-resources/index.rst b/doc/additional-resources/index.rst
@@ -3,7 +3,7 @@ Additional Resources
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 .. toctree::
    :maxdepth: 1

diff --git a/doc/additional-resources/license.rst b/doc/additional-resources/license.rst
@@ -5,11 +5,11 @@ License
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
-Copyright Tumult Labs 2025
 
-The Tumult Core source code is licensed under the Apache License, version 2.0 (`Apache-2.0 <https://gitlab.com/tumult-labs/core/-/blob/dev/LICENSE>`_).
 
-The Tumult Core documentation is licensed under Creative Commons Attribution-ShareAlike 4.0 International (`CC-BY-SA-4.0 <https://gitlab.com/tumult-labs/core/-/blob/dev/LICENSE.docs>`_).
+The Tumult Core source code is licensed under the Apache License, version 2.0 (`Apache-2.0 <https://github.com/opendp/tumult-core/blob/main/LICENSE>`_).
+
+The Tumult Core documentation is licensed under Creative Commons Attribution-ShareAlike 4.0 International (`CC-BY-SA-4.0 <https://github.com/opendp/tumult-core/blob/main/LICENSE.docs>`_).
 To view a copy of this license, visit this `webpage <http://creativecommons.org/licenses/by-sa/4.0/>`_ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
diff --git a/doc/additional-resources/privacy_policy.rst b/doc/additional-resources/privacy_policy.rst
diff --git a/doc/conf.py b/doc/conf.py
@@ -1,7 +1,7 @@
 # pylint: skip-file
 
 # SPDX-License-Identifier: Apache-2.0
-# Copyright Tumult Labs 2025
+
 
 import datetime
 import logging
@@ -15,7 +15,6 @@
 
 project = "Tumult Core"
 author = "Tumult Labs"
-copyright = f"{datetime.date.today().year} Tumult Labs"
 # Note that this is the name of the module provided by the package, not
 # necessarily the name of the package as pip understands it.
 package_name = "tmlt.core"
@@ -145,13 +144,13 @@ def autoapi_prepare_jinja_env(jinja_env):
     "collapse_navigation": True,
     "navigation_depth": 4,
     "navbar_end": ["navbar-icon-links"],
-    "footer_start": ["copyright", "build-info"],
+    "footer_start": ["build-info"],
     "footer_end": ["sphinx-version", "theme-version"],
     "switcher": {
         "json_url": "https://docs.tmlt.dev/core/versions.json",
         "version_match": version,
     },
-    "gitlab_url": "https://gitlab.com/tumult-labs/core",
+    "github_url": "https://github.com/opendp/tumult-core",
 }
 html_context = {
     "default_mode": "light",

diff --git a/doc/index.rst b/doc/index.rst
@@ -3,7 +3,7 @@ Tumult Core documentation
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 .. toctree::
    :hidden:

diff --git a/doc/installation.rst b/doc/installation.rst
@@ -5,7 +5,7 @@ Installation instructions
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 This guide will help you set up Tumult Core on your local machine.
 
@@ -20,7 +20,7 @@ Tumult Core supports the ``x86_64`` processor architecture, as well as Apple sil
 
 Below are instructions for installing these prerequisites on several common platforms.
 If none of these apply to you, install Python 3 and Java from your OS package manager.
-If you encounter any issues during the installation process, please `let us know <https://gitlab.com/tumult-labs/core/-/issues>`__!
+If you encounter any issues during the installation process, please `let us know <https://github.com/opendp/tumult-core/issues>`__!
 
 .. tab-set::
 

diff --git a/doc/ref.bib b/doc/ref.bib
@@ -1,5 +1,5 @@
 % SPDX-License-Identifier: CC-BY-SA-4.0
-% Copyright Tumult Labs 2025
+% 
 
 @inproceedings{Cesar021,
   author    = {Mark Cesar and

diff --git a/doc/topic-guides/architecture.rst b/doc/topic-guides/architecture.rst
@@ -5,7 +5,7 @@ Tumult Core Architecture
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 .. testsetup::
 

diff --git a/doc/topic-guides/index.rst b/doc/topic-guides/index.rst
@@ -5,7 +5,7 @@ Topic Guides
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 The following pages explain concepts and advanced topics that come up in Tumult Core.
 

diff --git a/doc/topic-guides/known-vulnerabilities.rst b/doc/topic-guides/known-vulnerabilities.rst
@@ -5,7 +5,7 @@ Known Vulnerabilities
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 This page describes known vulnerabilities in Tumult Core that we intend to fix.
 

diff --git a/doc/topic-guides/privacy-guarantee.rst b/doc/topic-guides/privacy-guarantee.rst
@@ -5,7 +5,7 @@ Tumult Core Privacy Guarantee
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 The privacy guarantee of a Core :class:`~.Measurement`, :math:`\mathcal{M}` is
 the following. Let :math:`r` denote the privacy relation of :math:`\mathcal{M}`,

diff --git a/doc/topic-guides/real-numbers.rst b/doc/topic-guides/real-numbers.rst
@@ -5,7 +5,7 @@ Handling Real Numbers
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 A DP algorithm (a single :class:`~.Measurement`) may be constructed using the Tumult Core library by composing
 arbitrarily many transformations and measurements; and calling the

diff --git a/doc/topic-guides/spark.rst b/doc/topic-guides/spark.rst
@@ -5,7 +5,7 @@ Spark
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 Tumult Core uses Spark as its underlying data processing
 framework. This topic guide covers relevant information about Spark

diff --git a/doc/topic-guides/special-values.rst b/doc/topic-guides/special-values.rst
@@ -5,7 +5,7 @@ NaNs, nulls, and infs
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 This page describes how Tumult Core handles NaNs, nulls, and infs.
 

diff --git a/doc/tutorials/first-tutorial.rst b/doc/tutorials/first-tutorial.rst
@@ -3,7 +3,7 @@ Simple Data Analysis with Tumult Core
 
 ..
     SPDX-License-Identifier: CC-BY-SA-4.0
-    Copyright Tumult Labs 2025
+
 
 In this tutorial you will learn how to:
-Original file line number
+Diff line change
@@ Expand Up / @@ -5,7 +5,7 @@ Tumult Core Architecture @@
     ..
         SPDX-License-Identifier: CC-BY-SA-4.0
-        Copyright Tumult Labs 2025
     .. testsetup::
@@ Expand Down @@