OpenBSD 7.3, a free Unix-like operating system, has been released by the OpenBSD project. This project was founded by Theo de Raadt in 1995, after a conflict with NetBSD developers that resulted in the NETBSD repository being closed to the CVS. A feasibility study with a group of like-minded people led to the development of a new open operating system based on the NETBSD initial texts, with the main development goals being tolerance (maintained 13 hardware platforms), standardization, correct work, proactive safety, and integrated cryptographic agents. The size of the full installation ISO-image of the base system OpenBSD 7.3 is 620 Mb, and it can be downloaded from https://ftp.eu.openbsd.org/pub/openbsd/7.3/.
Aside from the operating system itself, the OpenBSD project is also known for its components that have been distributed in other systems and have established themselves as one of the safest and highest-quality solutions. These components include libressl (Fork Openssl), Openssh, the package filter pf, routing demons Openbgpd and Openospfd, NTP server OpenNTPD, Postal server opensmtpd, multiplexer of the text terminal tmux, Identd demon with the implementation IDENT protocol, a BSDL alternative to the GNU Groff package, mandoc, the protocol for the organization of fault-resistant Carp (Common Address Redundance Protocol), a lightweight http server, and Upenrsync file synchronization utility.
The new release of OpenBSD 7.3 features several improvements, including the implementation of system calls such as Waitid (Waiting for a change in the condition of the process), PINSYSCALL (adding a plug for a certain system call), getthrname, and sethrname (receipt and installation of a stream name) for all architectures. Additionally, clackintr, an interruption planner from the timer, has been added for all architectures. Finally, a new Syssctl Kern.autoconf_serial has been added, which can be used to track the change in the state of Device Tree in the core from the user space. Further information can be found at https://www.openbsd.org/73.html.