Hi Nicolas, Org mode developers,
* Nicolas Goaziou <mail@nicolasgoaziou.fr> [2018-05-09; 02:30]:
> Bastien <bzg@gnu.org> writes:
>
>> it would be nice to make the switch to org-manual.org for Org 9.2,
>> and to delete org.texi entirely from the master branch.
>
> Done.
>
>> I guess we need to add some Makefile rules so that "make pdf" first
>> exports .org => .texi then exports .texi to .pdf... is that so?
>
> Done (or so I think).

Hurray!

I found that org-float instead of diary-float is documented in
org-manual.org although ORG-NEWS says to use diary-float instead:

~/src/org-mode$ rgrep  org-float
etc/ORG-NEWS:** =org-float= is now obsolete, use =diary-float= instead
Binary file lisp/org-compat.elc matches
lisp/org-compat.el:(define-obsolete-function-alias 'org-float-time 'float-time "Org 9.0")
testing/lisp/test-org.el:   (org-test-with-temp-text "<%%(org-float t 4 2)>"
testing/lisp/test-org.el:   (equal "<%%(org-float t 4 2)>"
testing/lisp/test-org.el:         (org-test-with-temp-text "<%%(org-float t 4 2)>"
doc/org.texi:  <%%(org-float t 4 2)>
doc/org.texi:<%%(org-float t 42)>
doc/org-manual.org:       <%%(org-float t 4 2)>
doc/org-manual.org:: <%%(org-float t 42)>
doc/org:            <%%(org-float t 4 2)>
doc/org:     <%%(org-float t 42)>
doc/org.html:  &lt;%%(org-float t 4 2)&gt;
doc/org.html:<pre class="example">&lt;%%(org-float t 42)&gt;


~/src/org-mode$ rgrep  diary-float
etc/ORG-NEWS:** =org-float= is now obsolete, use =diary-float= instead
testing/lisp/test-org-element.el:  (should (equal (org-test-parse-and-interpret "<%%diary-float t 4 2>")
testing/lisp/test-org-element.el:                "<%%diary-float t 4 2>\n"))
doc/orgguide.texi:  <%%(diary-float t 4 2)>

org-guide.texi is already up to date with respect to
diary-float.

I made a very simple patch for org-manual.org but none for
test-org.el or test-org-element.el since I do not understand
them.  When reading about documentation standards I found that
Org manuals filename and directory wasn't up to date, so I fixed
this.  I assume that the parts of doc/Documentation_Standards.org
which deal with texinfo formatting are also out of date but do
not know how to rewrite them.