Twig version 3.12 has introduce semicolon as separator for named argument. This is part of twig coding standard mentioned on #71.
{# before version 3.12 #}
{{ data|convert_encoding(from = 'iso-2022-jp', to = 'UTF-8') }}
{# version 3.12 and after #}
{{ data|convert_encoding(from: 'iso-2022-jp', to: 'UTF-8') }}
Twig version 3.12 has introduce semicolon as separator for named argument. This is part of twig coding standard mentioned on #71.
Ref: https://twig.symfony.com/doc/3.x/templates.html#named-arguments