AnthorNet created a stats page for schema, which you can find
here.
He very recently added a percentages stats graph. Very nicely done btw ;-)
Well I have brilliant news to report. In the last 7 days (20th of June till the 27th of June) the percentage of V2 messages has gone from 61.8% to 91%. Today the 28th is still on going (18:15 GMT+1 atm) the percentage of V2 messages has gone up to 94,2%. The latest increase is no doubt related to the fact that Duke on the 26th released a new version of his popular and great RN-DJ tool (one of its features is a very good OCR-ing solution). Atm all OCR Eror Free tools in their latest release support schema V2 only. Same for the OCR-ing tools. Also nearly all publicly released tools support receiving schema V2. All major ones DO support V2.
The only two tools which have not V2 receiving capability are the tools by Thardi and Pandemic. At least they haven´t responded to my PM´s. Not sure if they are still palying ED.
Pandemic has created 5 post in the FD forum, last post was 03/02/2015 was here in this thread, 11:57 PM.
thardie has created 3 posts in the FD forum, last post 23/02/2015, 5:25 AM was here in this thread.
Copy/paste from post #645:
That leaves 2 commanders who haven't PM-ed back. Thardie and Pandemic.
Both have an EDDN value added service. They both store eddn message which can be used by others, most likely tool authors.
Thardie has as a service for the end-user that by calling
this url you receive a trade dangerous .prices back. Didn't test it.
Pandemic has a trading tool called elite-trade-analyzer. Github repo
here. It needs Apache Spark. Last update repo 4 monhts ago.
I truly appreciate the great work they have done wrt to their Value Added Services (VAS). Thardi´s service where you can get download a .prices file for TD is probably no longer up to date since Power Play introduced new commodities. His service connects to the EDDN and hence will receive data from the OCR Error Free tools. These tools get the data from the web-api and those commodity names are different then used ingame in ED. So have to be translated for TD. Hence unless he has updated his service for PP the TD .prices can´t be used any longer. I can´t know how much their archiving services are used - their audience are tool authors. I have his feeling their services won´t effect normal ED commanders. So far haven´t seen posts here that commanders/tool authors have stated they are using those VAS. Perhaps when they notice that their services no longer receive V1 messages that they contact this thread, though like I said I PM-ed them.
TL;DR The schema V2 usage has gone up to approx 94%. Personally I think dropping of the V1 schema support in the EDDN starting the 1st of July as was planned and communicated is safe to do.
Note: Hopefully after the switch I can stop with these kind of large posts ;-) The life of an perfectionist is not a good one ;-(