E.4. Modifications

You may copy and distribute a Modi¯ed Version of the Document under the
conditions of Sections 2 and 3 above, provided that you release the Modi¯ed
Version under precisely this License, with the Modi¯ed Version ¯lling the role
of the Document, thus licensing distribution and modi¯cation of the Modi¯ed
Version to whoever possesses a copy of it. In addition, you must do these things
in the Modi¯ed Version:
Use in the Title Page (and on the covers, if any) a title distinct from that
of the Document, and from those of previous versions (which should, if
there were any, be listed in the History section of the Document). You
may use the same title as a previous version if the original publisher of
that version gives permission.
List on the Title Page, as authors, one or more persons or entities respon-
sible for authorship of the modi¯cations in the Modi¯ed Version, together
with at least ¯ve of the principal authors of the Document (all of its prin-
cipal authors, if it has less than ¯ve).
State on the Title page the name of the publisher of the Modi¯ed Version,
as the publisher.
Preserve all the copyright notices of the Document.
E.4 Modi¯cations 267
Add an appropriate copyright notice for your modi¯cations adjacent to
the other copyright notices.
Include, immediately after the copyright notices, a license notice giving
the public permission to use the Modi¯ed Version under the terms of this
License, in the form shown in the Addendum below.
Preserve in that license notice the full lists of Invariant Sections and re-
quired Cover Texts given in the Document's license notice.
Include an unaltered copy of this License.
Preserve the section entitled \History," and its title, and add to it an item
stating at least the title, year, new authors, and publisher of the Modi¯ed
Version as given on the Title Page. If there is no section entitled \History"
in the Document, create one stating the title, year, authors, and publisher
of the Document as given on its Title Page, then add an item describing
the Modi¯ed Version as stated in the previous sentence.
Preserve the network location, if any, given in the Document for public
access to a Transparent copy of the Document, and likewise the network
locations given in the Document for previous versions it was based on.
These may be placed in the \History" section. You may omit a network
location for a work that was published at least four years before the Do-
cument itself, or if the original publisher of the version it refers to gives
In any section entitled \Acknowledgements" or \Dedications," preserve
the section's title, and preserve in the section all the substance and tone
of each of the contributor acknowledgements and/or dedications given
Preserve all the Invariant Sections of the Document, unaltered in their text
and in their titles. Section numbers or the equivalent are not considered
part of the section titles.
Delete any section entitled \Endorsements." Such a section may not be
included in the Modi¯ed Version.
Do not retitle any existing section as \Endorsements" or to con°ict in title
with any Invariant Section.
If the Modi¯ed Version includes new front-matter sections or appendices that
qualify as Secondary Sections and contain no material copied from the Docu-
ment, you may at your option designate some or all of these sections as invariant.