Marco Cantu has posted a blog article about a couple of new features that are coming in Delphi 12.0: Long String Literals, and Multi-line String Literals!
The 12.0 version of Delphi (and RAD Studio) introduces a very significant set of changes to the way the Delphi compiler handles string literals… With the coming release, it will be possible to have string literals longer than 255 characters… Delphi 12 will add support for multiline strings. In this case, you have to adopt a different syntax…
See his blog for full details:
https://blog.marcocantu.com/blog/2023-09-yukonbeta-stringliterals.html