This week marks anniversaries for two long-running operating system projects: Debian, which turned 33, and Haiku OS, which turned 25. Debian, founded by Ian Murdock in 1993, remains one of the world's most widely used Linux distributions, while Haiku continues to carry forward the legacy of the discontinued BeOS, demonstrating that both open-source efforts remain active and technically ambitious decades after their founding.

Debian is not the oldest maintained Linux distribution — that title belongs to Slackware, roughly a month older — but it has seen steady releases, including Debian 12 in June 2023 and Debian 13 a year later. Haiku, meanwhile, has never reached a 1.0 release despite 25 years of development, but is nearing a "beta6" milestone with a release branch expected imminently. The project continues to make technical strides, including a PowerPC port demonstrated with AI assistance in July and a preliminary Arm64 port shown in May, alongside related efforts such as Cosmoe and VitruvianOS, which aim to bring BeOS-style interfaces to other platforms.