The AIRAC amendment date is today, 10 June. To see the new plates you need to download the AIRAC 28 day cycle amendments - it's a large file and takes a while to download even on broadband. I dare say the main document will be updated tonight.
vA provider of robust Air/Ground Communications Services . . . . stevelevien.com
The 4.5 dme point is not a SDF, it is the Final Approach Fix.
All this tells you is that the procedure starts at 2200 (IAF at the beacon) and no descent is permitted until 4.5 DME inbound (the FAF).
The approach designers have presumably done the maths and determined that this gives a constant and acceptable descent profile down to the actual SDFs at 3 dme and 2dme (in line with the previously NOTAMed SDFs)