Back in Polytonic Greek Unicode Still Isn’t Perfect and An Updated Solution to Polytonic Greek Unicode’s Problems I talked about problems with stacking vowel length and other diacritics. At least in terms of the font used on this site, the problems are now solved.
After discussions on the Unicode mailing list, it was clear that the solution to better handling of complex diacritic stacking in polytonic Greek was NOT more precomposed forms but better support in fonts, etc. So I reached out to David Březina, the creator of the Skolar typeface, used on this site, to see if the issues could be addressed.
I’m delighted to say that Březina’s foundry Rosetta Type has released new versions of Skolar PE that address all the issues I had.
I’ve now switched over this site to use the new version, which does mean those old posts complaining about the issues will read a little funny as they won’t actually show examples of the problems they purport to.
Thank you, David, for listening to my input and making my favourite Greek typeface even better!
UPDATE (2017-01-06): turns out I also needed to add
font-feature-settings: "ccmp"; for it to work on Safari.