JH/02 Move from using the pcre library to pcre2. The former is no longer
being developed or supported (by the original developer).
+JH/03 Constification work in the filters module required a major version
+ bump for the local-scan API. Specifically, the "headers_charset"
+ global which is visible via the API is now const and may therefore
+ not be modified by local-scan code.
+
Exim version 4.95
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