Hello, with reference to the recent release of the test version of Boost C++ 1.90.0 libraries,
https://cygwin.com/pipermail/cygwin-announce/2026-January/012793.html it may happen that you won't be able to remove previous version because some packages depend on them. So, it happened to me that I was not able to uninstall completely the older version 1.66 because source-highlight package needs it. I don't remember why I had to install it, however I took the chance to update current version from 3.1.8 to 3.1.9, rather than simply rebuilding. You can find it here: https://github.com/carlo-bramini/packages-cygwin/tree/main/source-highlight/source-highlight.x86_64 The rewritten script for cygport also adds missing information like license and dependencies. If you are planning to abandon the older versions of Boost C++ in favour of the new one, this update may be used for removing this dependency. I hope that you will find it useful. Sincerely, Carlo Bramini.
