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This chapter describes compatibility issues and functionality changes involved in upgrading from the UNICOS 10.0 major release and UNICOS 10.0.0.3 update release to the UNICOS 10.0.0.4 update release. This chapter also includes early information about changes planned for future UNICOS releases.
To meet user requirements for compatibility between releases of Silicon Graphics software, upward compatibility is provided in subsequent releases of the system and products in the following areas:
UNICOS user commands
Standard language syntax, semantics, and Silicon Graphics extensions
Absolute binary code
Relocatable binary code
This chapter describes any incompatible changes that were introduced in this release for the following reasons:
Hardware changes
Third-party software changes
Improved software design or numerical techniques
Bugfixes
If possible, both the old and new software are provided for one release. In other cases, compatibility bridging is provided through special compatibility software for the duration of one major release.
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