dc10 - 0.5


Bradley M. Kuhn
Day DebConf Day 2 (2010-08-02)
Room Davis Auditorium
Start time 10:30
Duration 01:00
ID 617
Event type lecture
Language en

GPLv3: Better Copyleft for Developers and Users

 Many developers have not yet investigated the new suite of GPLv3
 licenses.  This presentation helps developers already familiar with
 GPLv2 and LGPLv2 to improve their understanding of GPLv3, LGPLv3, and
 AGPLv3.  This presentation covers changes in the patent provisions,
 improved license compatibility, improved source code provision terms,
 the internationalization of GPL and many other changes.
 Many developers have not had the time to investigate the new suite of
 licenses in depth, and understand the differences between the
 GPLv3-based and the GPLv2-based licenses.  This talk will help
 developers who are generally familiar with the GPLv2 and LGPLv2 to
 improve their understanding of GPLv3, LGPLv3, and AGPLv3.

 Specifically, this talk will cover in detail the changes in the in
 various parts of the license. The following is the list of changes
 that will be explained in detail during the talk:

      * Changes to improve the details regarding distribution between
        GPLv2 and GPLv3.  Traditionally, GPLv2 has been interpreted to
        mean what GPLv3 says on this topic, but does not say so in the
        letter of the license.  v3 makes it clear how distribution can
        happen under a copyleft license.

      * GPLv2, while aware of the software patent issue, is extremely
        naive in its provisions regarding patents.  GPLv3 patent
        provisions are much improve.  This talk will explain how.

      * GPLv2 is a USA-centric license.  GPLv3 is internationalized.

      * The termination provision in v2 extremely aggressive.  GPLv3
        has friendlier termination provisions more consistent with
        community practices.

      * License exceptions are nearly always necessary under GPL.
        They existed under GPLv2, but the system for adding exceptions
        was clunky and non-uniform.  GPLv3 provides an exceptions

      * GPLv2 does not handle embedded software situations well.
        GPLv3 much improves this situation.

      * GPLv2 has no web services clause.  GPLv3 does not either, but
        GPLv3's structure makes one possible through the Affero GPLv3.