Python 3.15 released

Version3.15 of the Python programming language has been released. Notable changesin this release include the addition of the sentinel and frozendict built-in types,the use of UTF-8 encoding by default, packagestart-up configuration files, as well as improvements in the experimentalJIT compiler. See the "What's new in Python3.15" article for an in-depth look at new features in this release, and thechangelogfor a full list of changes.