There are installers for all supported Delphi versions, take your pick:
- GXRS10.1-138-experimental-twm-2016-06-05.exe
- GXRS10-138-experimental-twm-2016-06-05.exe
- GXRSXE8-138-experimental-twm-2016-06-05.exe
- GXRSXE7-138-experimental-twm-2016-06-05.exe
- GXRSXE6-138-experimental-twm-2016-06-05.exe
- GXRSXE5-138-experimental-twm-2016-06-05.exe
- GXRSXE4-138-experimental-twm-2016-06-05.exe
- GXRSXE3-138-experimental-twm-2016-06-05.exe
- GXRSXE2-138-experimental-twm-2016-06-05.exe
- GXRSXE1-138-experimental-twm-2016-06-05.exe
- GXRS2010-138-experimental-twm-2016-06-05.exe
- GXRS2009-138-experimental-twm-2016-06-05.exe
- GXDelphi2007-138-experimental-twm-2016-06-05.exe
- GXBDS2006-138-experimental-twm-2016-06-05.exe
- GXDelphi2005-138-experimental-twm-2016-06-05.exe
- GXD7-138-experimental-twm-2016-06-05.exe
- GXD6-138-experimental-twm-2016-06-05.exe