<div dir="ltr">I'm in favor of deprecation, but opposed to removing any time soon due to backwards compatibility concerns.<br></div><br><div class="gmail_quote">On Fri, Mar 27, 2015 at 7:03 AM Fumiaki Kinoshita <<a href="mailto:fumiexcel@gmail.com">fumiexcel@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>It is well known that ListT m in transformers is not a monad unless the underlying monad is commutative. The fact that ListT is not a monad transformer is sufficient to remove it from the package, and several packages already defined their own ListT.</div><div><br></div>Oughtn't we deprecate ListT or replace it by a correct one?</div>
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