[O] Problem with diary entries after upgrading emacs 26.1

[Pascal Quesseveur]

Hello,

I upgraded from emacs 24 to emacs emacs 26.1. Org version is
9.1.9. Diary entries in the Org Agenda view don't work as before. I
have some entries in an org file:

===========================================
<some text>
:PROPERTIES:
:CATEGORY: Congés
:END:
%%(diary-block 18 04 2017 21 04 2017) 4j
%%(diary-block 04 04 2017 04 04 2017) 0,5
%%(diary-block 17 02 2017 22 02 2017) Congés 3,5j
<text snipped>

:PROPERTIES:
:CATEGORY: Congés
:END:
%%(diary-block 28 10 2016 31 10 2016) Congés 2j
%%(diary-block 04 05 2016 06 05 2016) Congés 1,5j
...
===========================================

And the displayed week aganda is:

===========================================
Week-agenda (W23):
Lundi       4 Juin 2018 W23
  Congés:     Congés 3,5j
  Congés:     Congés 2j
Mardi       5 Juin 2018
  Congés:     Congés 3,5j
  Congés:     Congés 2j
Mercredi    6 Juin 2018
  Congés:     4j
  Congés:     Congés 3,5j
  Congés:     Congés 2j
===========================================

Is there to update in my org config to make it work as before ?

-- 
Pascal Quesseveur
address@hidden