<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> I've updated the book there and in some other parts where String related code examples needed an update. I also added an explanation about the transition from byte string to utf-8. In github, filter with texinfo file and please review my changes: <a class="moz-txt-link-freetext" href="https://github.com/Cuis-Smalltalk/TheCuisBook/commit/f9dc52bae6d30f4783db4cf5d68ba629d987c48d">https://github.com/Cuis-Smalltalk/TheCuisBook/commit/f9dc52bae6d30f4783db4cf5d68ba629d987c48d</a> Thanks Hilaire <div class="moz-cite-prefix">Le 12/01/2023 à 15:35, Juan Vuletich a écrit : </div> <blockquote type="cite" cite="mid:63C01AAB.1010606@cuis.st">Yes. UnicodeStrings can not be modified (they are effectively immutable), so #shallowCopy and #copy just answer the receiver. We'd need to update the CuisBook. </blockquote> <pre class="moz-signature" cols="72">-- GNU Dr. Geo <a class="moz-txt-link-freetext" href="http://drgeo.eu">http://drgeo.eu</a> <a class="moz-txt-link-freetext" href="http://blog.drgeo.eu">http://blog.drgeo.eu</a></pre> </body> </html>