Update on abcl-1.9.0 release

[Mark Evenson]

> On May 9, 2022, at 16:03, Robert Goldman <rpgoldman at sift.net> wrote:
> 
> Do you have thoughts about what's too old a version of ABCL to worry about?

I would say you should concentrate on the last version released via Maven, as these are the most “unknown” installations can simply update by changes their Maven coordinates.

The last release on Maven was [abcl-1.8.0][].

[abcl-1.8.0]: <https://mvnrepository.com/artifact/org.abcl/abcl/1.8.0>
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