The /usr/ccs/bin directory is a symbolic link to /usr/bin.
Because of this change, for example, the /usr/ccs/bin:/usr/gnu/bin:/usr/bin path in the PATH environment variable is now equivalent to /usr/bin:/usr/gnu/bin. This change might result in changes to the utilities that are found by PATH searches.
If the /usr/ccs/bin change causes issues in locating GNU utilities, the PATH environment variable should be rearranged to place /usr/gnu/bin earlier than /usr/bin or utilities should be invoked with a full path.