# Execution Associates Source License, Version 1.0

## Abbreviation

EXA-SL-1.0, Apache 2.0 Future License

## Notice

Required Notice: Copyright 2026 Execution Associates (https://executionassociates.com)

## Summary

This summary is not part of the terms below and does not change them.

You may use, copy, change and share the software for free, for any purpose,
unless your company had 10,000,000 USD or more in Annual Revenue, or you use the
software to offer a product that competes with it. A company at or over that
line needs a commercial license from us. Two years after we release each
version, that version also becomes available to everyone under the Apache
License, Version 2.0, with neither limit.

## Acceptance

In order to get any license under these terms, you must agree to them as both
strict obligations and conditions to all your licenses.

## Copyright License

The licensor grants you a copyright license for the software to do everything
you might do with the software that would otherwise infringe the licensor's
copyright in it for any permitted purpose. However, you may only distribute the
software according to [Distribution License](#distribution-license) and make
changes or new works based on the software according to
[Changes and New Works License](#changes-and-new-works-license).

## Distribution License

The licensor grants you an additional copyright license to distribute copies of
the software. Your license to distribute covers distributing the software with
changes and new works permitted by
[Changes and New Works License](#changes-and-new-works-license).

## Notices

You must ensure that anyone who gets a copy of any part of the software from
you also gets a copy of these terms or the URL for them below, as well as
copies of any plain-text lines beginning with `Required Notice:` that the
licensor provided with the software.

These terms apply to all copies, changes and new works based on the software,
until the date in [Future License](#future-license) for the version they are
based on.

<https://github.com/execution-associates/isb/blob/main/LICENSE>

## Changes and New Works License

The licensor grants you an additional copyright license to make changes and new
works based on the software for any permitted purpose.

## Patent License

The licensor grants you a patent license for the software that covers patent
claims the licensor can license, or becomes able to license, that you would
infringe by using the software for a permitted purpose.

## Permitted Purpose

Any purpose is a permitted purpose, except the two below. The purposes listed
in [Always Permitted](#always-permitted) are permitted even when the second
applies.

1. providing to others any product that competes with the software (see
   [Noncompete](#noncompete)); and

2. any use for the benefit of a Large Company (see
   [Revenue Limit](#revenue-limit)), unless that company holds a commercial
   license for the software from the licensor.

## Noncompete

Providing to others any product that competes with the software is never a
permitted purpose under these terms, whatever the size of your company.

## Competition

If you use this software to market a product as a substitute for the
functionality or value of the software, it competes with the software. A
product also competes with the software if it substitutes for any other product
or service the licensor offers using the software that exists on the date the
licensor makes this version of the software available. A product may compete
regardless how it is designed or deployed. For example, a product may compete
even if it provides its functionality via any kind of interface (including
services, libraries or plug-ins), even if it is ported to a different platform
or programming language, and even if it is provided free of charge.

## Revenue Limit

Use of the software for the benefit of your company is a permitted purpose only
if your company is not a Large Company.

Your company is a **Large Company** if its Annual Revenue was 10,000,000 USD or
more, or the equivalent in other currencies, at any time in the prior twelve
months.

**Annual Revenue** is the greater of:

1. your company's total gross revenue, from all sources, in its most recently
   completed fiscal year; and

2. your company's annual recurring revenue at that time, being its monthly
   recurring revenue from subscriptions, contracts and other recurring
   arrangements, multiplied by twelve.

Annual Revenue is counted across your company as a whole, including every
organization in it under the definition of **your company** below.

A Large Company may get a commercial license by contacting the licensor at
https://executionassociates.com. Use by a Large Company without one is not
covered by your licenses, and the licensor may treat it as a violation under
[Violations](#violations).

If your company becomes a Large Company, your use of the software for its
benefit may continue for 32 days after it first does so while you seek a
commercial license.

## Always Permitted

Whatever the size of your company, these are always permitted purposes, so long
as they do not compete with the software:

1. use by an individual for personal, non-commercial purposes;

2. non-commercial education;

3. non-commercial research;

4. evaluating the software, for up to 32 consecutive days; and

5. professional services you provide to a licensee who is using the software
   for a permitted purpose.

## Fair Use

You may have "fair use" rights for the software under the law. These terms do
not limit them.

## No Other Rights

These terms do not allow you to sublicense or transfer any of your licenses to
anyone else, or prevent the licensor from granting licenses to anyone else.
These terms do not imply any other licenses.

## Patent Defense

If you make any written claim that the software infringes or contributes to
infringement of any patent, your patent license for the software granted under
these terms ends immediately. If your company makes such a claim, your patent
license ends immediately for work on behalf of your company.

## Violations

The first time you are notified in writing that you have violated any of these
terms, or done anything with the software not covered by your licenses, your
licenses can nonetheless continue if you come into full compliance with these
terms, and take practical steps to correct past violations, within 32 days of
receiving notice. Otherwise, all your licenses end immediately.

## No Liability

***As far as the law allows, the software comes as is, without any warranty or
condition, and the licensor will not be liable to you for any damages arising
out of these terms or the use or nature of the software, under any kind of
legal claim.***

## Trademarks

Except for displaying the notices required above and identifying the licensor
as the origin of the software, these terms give you no right to use the
licensor's trademarks, trade names, service marks or product names, including
"isb" and "Execution Associates".

## Definitions

The **licensor** is Execution Associates, the entity offering these terms, and
the **software** is each version of the software the licensor makes available
under these terms, as indicated by its inclusion of these terms with the
software.

A **product** can be a good or service, or a combination of them.

**You** refers to the individual or entity agreeing to these terms.

**Your company** is any legal entity, sole proprietorship, or other kind of
organization that you work for, plus all organizations that have control over,
are under the control of, or are under common control with that organization.
**Control** means ownership of substantially all the assets of an entity, or
the power to direct its management and policies by vote, contract, or
otherwise. Control can be direct or indirect.

**Your licenses** are all the licenses granted to you for the software under
these terms.

**Use** means anything you do with the software requiring one of your licenses.

## Future License

The licensor hereby irrevocably grants you an additional license to use each
version of the software under the Apache License, Version 2.0, effective on the
second anniversary of the date the licensor makes that version available. On or
after that date, you may use that version under the Apache License, Version
2.0, in which case the Noncompete and the Revenue Limit above do not apply to
that use, and the following will apply:

Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License.

You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed
under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied. See the License for the
specific language governing permissions and limitations under the License.

## Attribution

These terms are adapted from the PolyForm Perimeter License 1.0.1
(https://polyformproject.org/licenses/perimeter/1.0.1), the PolyForm Small
Business License 1.0.0 and the Functional Source License, Version 1.1, ALv2
Future License (https://fsl.software).
