The latest version of Boost, version 1.81, is now available in Debian Testing.
As contributors to Boost, we highly encourage you to consider building your package against Boost 1.81 in order to facilitate a smooth transition. Installing the -dev Boost packages from the experimental repository is simple, as shown in the following command:
sudo apt install libboost-dev -t experimental
If you encounter any issues or have suggestions for improvement, please do not hesitate to file bugs or prepare merge requests on salsa.
Thanks Freexian for supporting this effort.