Thank you.  I'll take a look and report what I find.  By the way, those
are commit numbers?  On which system?

Henry

On Wednesday, 16 December 2015 at 05:29:04 pm +0000, Bernard Marsh wrote:
> The 35328 was luaotfload v.2.5 (file dates up to 14 August, so probably 
> v.2.5-fix-4 on the luaotfload github), and the current (39093) version is 
> v.2.6-fix-2.
> 
> 
> The change history simply says:
> 2015/12/09, luaotfload v2.6
>     * Add ``sign`` target to makefile for automated package signing.
>     * Add ``--dumpconf`` option to luaotfload-tool for generating 
> configuration
>       files.
>     * Move fontloader files to subtree src/fontloader.
>     * New script ``mkimport`` facilitates maintainance of code imported from
>       Context.
>     * Revised letterspacing, now utilizing the ``node.direct`` interface.
>     * Revized colorization of fonts, utilizing ``node.direct`` (Dohyun Kim).
>     * Colorization was moved to the ``post_linebreak_filter`` stage.
>     * Move remaining functionality from ``luaotfload-override`` into
>       initialization.
>     * Write names index if fonts were removed.
>     * Separate module loading from initialization.
>     * Custom fontloader package with the files from Lualibs removed.
>     * Swappable fontloader via configuration option.
>     * Lualibs are now a dependency when used in a TeX run as well.
>     * Respect interword spaces when letterspacing.
> 
> Hope that helps...
> Fr Bernard
> 
> 
> ----- Original Message -----
> From: "Henry So Jr." <henr...@panix.com>
> To: "Bernard Marsh" <berna...@ormecourt.com>
> Cc: "Nikolaus Breuer" <nikolaus.bre...@t-online.de>, gregorio-users@gna.org
> Sent: Wednesday, 16 December, 2015 4:38:00 PM
> Subject: Re: [Gregorio-users] gregorio 4.0: trouble with latest tex/luatex 
> updates of TeXLive 2015
> 
> To what do 35328 and 39093 refer?  I'd like to see the differences to
> see if I can figure out how to "fix" gregorio or if it's a bug that must
> be reported to the luaotfload people.
> 
> Henry
> 
> On Wednesday, 16 December 2015 at 11:29:23 am +0000, Bernard Marsh wrote:
> > With same set-up (Ubuntu 14.04, gregorio version 
> > 4.0.0-release-4.0-1cc71cd-1) I can confirm an error if luaotfload is 
> > updated from 35328 -> 39093.
> > 
> > The message (with my test file) is:
> > 
> > (./PrefDialog-4_0_0.gtex
> > 
> > [... various warnings about deprecated commands]
> > 
> > ! Undefined control sequence.
> > <argument> \gre@font@music \GreCPPesOneNothing 
> >                                     
> > l.33 }
> >     %
> > 
> > 
> > Reverting to luaotfload 35328 gets rid of the error.
> > 
> > Bernard
> > 
> > ----- Original Message -----
> > From: "Nikolaus Breuer" <nikolaus.bre...@t-online.de>
> > To: gregorio-users@gna.org
> > Sent: Tuesday, 15 December, 2015 5:35:55 PM
> > Subject: [Gregorio-users] gregorio 4.0: trouble with latest tex/luatex      
> > updates of TeXLive 2015
> > 
> > Dear gregorio-user-fellows, 
> > 
> > it seems gregorio (this time 4.0.0) can't cope with latest TeXLive 2015 
> > updates: 
> > 
> > Before installing 
> > 
> > [Sun Dec 13 15:40:04 2015] update: fbb (38195 -> 39071) 
> > [Sun Dec 13 15:40:43 2015] update: fithesis (39009 -> 39079) 
> > [Sun Dec 13 15:40:49 2015] update: gnuplottex (32277 -> 39082) 
> > [Sun Dec 13 15:40:54 2015] update: ksp-thesis (39027 -> 39080) 
> > [Sun Dec 13 15:41:01 2015] update: lualibs (34736 -> 38998) 
> > [Sun Dec 13 15:41:30 2015] update: luaotfload (35328 -> 39078) 
> > [Sun Dec 13 15:41:36 2015] update: luatexko (38540 -> 39081) 
> > [Sun Dec 13 15:41:41 2015] update: make4ht (38446 -> 39075) 
> > [Sun Dec 13 15:42:11 2015] update: newtx (38467 -> 39072) 
> > [Sun Dec 13 15:42:27 2015] update: pst-labo (15878 -> 39077) 
> > [Sun Dec 13 15:42:32 2015] update: showlabels (32364 -> 39083) 
> > [Sun Dec 13 15:42:36 2015] update: tex4ebook (38463 -> 39076) 
> > [Sun Dec 13 15:42:41 2015] update: versonotes (36310 -> 39084) 
> > [Sun Dec 13 15:42:42 2015] auto-install new: bitpattern (39073) 
> > [Sun Dec 13 15:42:44 2015] auto-install new: simpler-wick (39074) 
> > [Sun Dec 13 15:42:45 2015] auto-install new: unicode-data (39085) 
> > [Sun Dec 13 15:42:49 2015] update: collection-basic (33040 -> 39085) 
> > [Sun Dec 13 15:42:52 2015] update: collection-latexextra (39047 -> 39074) 
> > [Sun Dec 13 15:42:56 2015] update: collection-science (38842 -> 39074) 
> > 
> > gregorio-4.0.0/examples/main-lualatex.tex compiled ok, after installation 
> > lualatex --shell-escape main-lualatex.tex results in an error message 
> > 
> > (./PopulusSion-4_0_0.gtex 
> > ! Undefined control sequence. 
> > <argument> \gre@font@music \GreCPPesThreeNothing 
> > 
> > l.13 } 
> > % 
> > ? 
> > 
> > Since I didn't change anything in my installation ("Vanilla" TeXLIve 2015 
> > on 64bit Ubuntu 14.04 LTS, all with latest updates ) e xcept above TL 
> > updates, it 's hard to believe the reason should be a general PATH or 
> > config error, rather, it seems gregoriotex might perhaps not be prepared 
> > for some of the most recent lua-related changes (?). Also complete new 
> > gregorio 4.0.0 install, rebuilding all formats, even today's luaotfload 
> > update [Tue Dec 15 17:41:10 2015] update: luaotfload (39078 -> 39093) did 
> > not help. 
> > Interesting side observation: gregorio 3.0.3 'survived' TeXLive 2015 
> > updates in good shape. 
> > 
> > Anybody out there running gregorio 4.0.0 on a Linux system with latest 
> > TeXLive 2015 updates? Any idea of what might cause the trouble ? 
> > 
> > Kind regards 
> > Nikolaus Breuer 
> > 
> > _______________________________________________
> > Gregorio-users mailing list
> > Gregorio-users@gna.org
> > https://mail.gna.org/listinfo/gregorio-users
> > 
> > _______________________________________________
> > Gregorio-users mailing list
> > Gregorio-users@gna.org
> > https://mail.gna.org/listinfo/gregorio-users
> 

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