<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Hello Bright People,</div><div class=""><br class=""></div><div class="">datum 4.3.0 has been release recently. </div><div class=""><br class=""></div><div class="">Datum is a pure functional and generic programming for Erlang. This library is testing the limits of functional abstractions in Erlang.</div><div class=""><br class=""></div><div class="">Release 4.3.x<br class=""><br class="">New Features<br class="">* New category `undefined`</div><div class="">* Product lens combinator lens:p(...) to spawn multiple fields into abstract view<div class="">* Macros to pattern match empty data structures (see datum.hrl)<br class=""></div><div class="">* Define new lens lens:require/1, lens:defined/0 to support development of unit testing (validate nested structures using lenses)<br class=""></div><div class=""><br class=""></div>Improvements<br class="">* Improve interface semantic, introduce lens:map/3 function instead of lens:apply/3<div class="">* Re-implement lens isomorphism feature using product lens<br class=""></div><div class="">* Update documentations and add examples about lenses<br class=""></div><div class="">* Use option data type to warp lens output</div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">You can find more details</div><div class=""><br class=""></div><div class=""><div class="" style="font-family: SourceCodeProForPowerline-Regular;">* Source code: <a href="https://github.com/fogfish/datum" class="">https://github.com/fogfish/datum</a></div><div class="" style="font-family: SourceCodeProForPowerline-Regular;">* Features overview: <a href="https://github.com/fogfish/datum/blob/master/doc/features.md" class="">https://github.com/fogfish/datum/blob/master/doc/features.md</a></div><div class="" style="font-family: SourceCodeProForPowerline-Regular;">* Hex: <a href="https://hex.pm/packages/datum" class="">https://hex.pm/packages/datum</a></div></div><div class="" style="font-family: SourceCodeProForPowerline-Regular;"><br class=""></div><div class="" style="font-family: SourceCodeProForPowerline-Regular;"><br class=""></div><div class="" style="font-family: SourceCodeProForPowerline-Regular;">Best Regards, </div><div class="" style="font-family: SourceCodeProForPowerline-Regular;">Dmitry</div></body></html>