But Texinfo still had some comments on the patch;).
./maintaining.texi:1821: warning: node `Managing project list file' is
next for `Switching Projects' in sectioning but not in menu
./maintaining.texi:1846: warning: node `Switching Projects' is prev
for `Managing project list file' in sectioning but not in menu
./maintaining.texi:1846: warning: node `Projects' is up for `Managing
project list file' in sectioning but not in menu
./maintaining.texi:1641: node `Projects' lacks menu item for `Managing
project list file' despite being its Up target
Could you please add a menu entry for the new node?