Posted in Uncategorized apt – Contents of a default sources.list or ubuntu.sources (24.04 and … January 11, 2026 Ubuntu 24.04 uses a new format for managing sources. Sources are stored in separate files within the /etc/apt/sources.list.d/ directory, each named with a .list or .sources extension (example: ondrej-ubuntu-php-noble.sources). https://askubuntu.com/questions/443036/contents-of-a-default-sources-list-or-ubuntu-sources-24-04-and-later-file