[tz] question around santiago tz, and sync tz

[gerar.moisset at orange.com]

Hello.
We have upgraded and use now tzdata2019a data from iana.
We have new customer using our service (java service updated with tzupdater) with tz in Santiago.
If I check Santiago time zone I see:
(GMT-04:00) America/Santiago [hasDST:false] #seems to be good since tzdata2019a
(GMT-04:00) America/Santiago - Summer Time [hasDST:true] #not good since 7 avr 2019 - Daylight Saving Time Ended
My question is:
If I check timeanddate for Santiago on: https://www.timeanddate.com/worldclock/chile/santiago
I can see : DST for Santiago start on 8 sep 2019
What will be the new values for this tz? Will its included into next tz iana update? And when?
where can i find little tutorial around this?
I need to automatically synchronize our platform, what will be the best way for us from your internet access?
Kind regards.

Gérard Moisset
Orange/TGI/OLS/BIZZ/UCEM/WUC
Spécialiste en Technologies Plate-Formes Services
+33 5 34 54 40 77 <http://clicvoice.sso.infra.ftgroup/ClicvoiceV2/ToolBar.do?action=default%26rootService%3DSIGNATURE%26to%3D+33534544077>
+33 6 80 45 05 71 <http://clicvoice.sso.infra.ftgroup/ClicvoiceV2/ToolBar.do?action=default%26rootService%3DSIGNATURE%26to%3D+33680450571>
gerar.moisset at orange.com <mailto:gerar.moisset at orange.com>
me joindre d'un clic !
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