The Archive of Celtic-Latin literature (ACLL) comes in three successive editions:

Harvey, A., Archive of Celtic-Latin literature: Royal Irish Academy dictionary of medieval Latin from Celtic sources (2007) – online   The preliminary version, first published on CD-ROM in 1994, with a revised version published online in 2007.
Royal Irish Academy, Archive of Celtic-Latin literature (2010) – online   The current version, published in 2010 by Brepols.
ACLL-3   The definitive version, not yet published.