The new [IDLdoc 3.4.2 release][IDLdoc downloads] changes one small aspect of the `.sav` file in the distribution (the source distribution is example the same as the 3.4.1 release): it removes the IDL library routines from the `.sav` file, i.e., it doesn't do a `RESOLVE_ALL` when constructing the `.sav` file.
Currently, IDLdoc is built with IDL 6.4 to maximize who can use it, but this means any included IDL library routines could conflict with the routines provided by the user's IDL distribution. IDLdoc is intended to be run from the command line, i.e., a full version of IDL, not a runtime or VM environment, so the IDL library routines should be provided by the user's IDL distribution.
Get the new version [here][IDLdoc downloads].
[IDLdoc downloads]: http://idldoc.idldev.com/wiki/Downloads "IDLdoc downloads"