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The Open Database License (ODbL) is a copyleft license agreement intended to allow users to freely share, modify, and use a database while maintaining this same freedom for others. [ 2 ] ODbL is published by Open Data Commons , which is part of Open Knowledge Foundation .
List of formerly open-source software Title Orig. free date License change date Initial free license Non-free license Forked replacement Notes Akka: 2009 2022 Apache-2.0: Business Source License [1] [2] ArangoDB: 2011 2023 Apache-2.0: Business Source License [3] Aseprite: 2001 2016 GPL-2.0: EULA that permits personal use but forbids ...
This is a list of proprietary source-available software, which has available source code, but is not classified as free software or open-source software. In some cases, this type of software is originally sold and released without the source code , and the source code becomes available later.
In the 90s, the term "open source" was coined as an alternative label for free software, and specific criteria were laid out to determine which licenses covered free and open-source software. [15] [16] Two active members of the free software community, Bruce Perens and Eric S. Raymond, founded the Open Source Initiative (OSI). [17]
The BSD license family is one of the oldest and most broadly used license families in the free and open-source software ecosystem, and has been the inspiration for a number of other licenses. Many FOSS software projects use a BSD license, for instance the BSD OS family (FreeBSD etc.), Google's Bionic or Toybox.
cdb, short for "constant database", refers to both a library and data format created by Daniel J. Bernstein. cdb acts as an on-disk associative array, mapping keys to values, and allows multiple values to be stored for a single key. A constant database allows only two operations: creation and reading.
The Open Source Initiative defines a permissive software license as a "non-copyleft license that guarantees the freedoms to use, modify and redistribute". [6] GitHub's choosealicense website describes the permissive MIT license as "[letting] people do anything they want with your code as long as they provide attribution back to you and don't hold you liable."
In contrast, the definitions of free software and open-source software are much narrower. Free software and/or open-source software is also always source-available software, but not all source-available software is also free software and/or open-source software. This is because the official definitions of those terms require considerable ...