Editing Haiku (operating system) (section)

===Compatibility with BeOS===
Haiku R1 aims to be compatible with BeOS 5 at both the [[source compatible|source]] and binary level,<ref>{{Cite web |title=The Haiku Book: Application Level API Incompatibilities with BeOS |url=https://www.haiku-os.org/docs/api/compatibility.html |access-date=2023-11-26 |website=www.haiku-os.org}}</ref> allowing software written and [[compiler|compiled]] for BeOS to be compiled and run without modification on Haiku.<ref name=":3">{{Cite web |title=General FAQ |url=https://www.haiku-os.org/about/faq/ |access-date=2023-11-26 |website=Haiku Project |language=en}}</ref> The 64-bit version of Haiku, however, does not have BeOS compatibility at the binary level, but the API still does. (The same would apply to other non-IA32 ports, such as RISC-V.)<ref name=":3" /> Installation of these PKG format files are done using the PackageInstaller.<ref>{{Cite web |title=LegacyPackageInstaller |url=https://www.haiku-os.org/docs/userguide/en/applications/packageinstaller.html |access-date=2023-11-27 |website=www.haiku-os.org}}</ref>