According to programmers that have looked into this, moving AllStar to current versions of Asterisk is impossible. I don't know the details of why that is other than to say Asterisk dropped support for AllStar long ago. 

On Tue, Jan 29, 2019 at 12:24 AM Marco Brunozzi <marco.brunozzi@gmail.com> wrote:

Hi everyone,
I'm looking for a way to use Asterisk LTS or other new version for
ASL, is that possible?
Thanks in advance,
73 Marco IW0RED.

--
Marco Brunozzi

Tel. +14152360004
Cel. +393483343274
Skype: marco.brunozzi
Twitter: marcobrunozzi
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