I just updated to the newest Fontlab Studio version last week. I went to compile the features in a font I had been working on. I already knew the language warning would come up, but didn't expect to see warnings about my use of the aalt feature. Here is one:
[WARNING] feature 'liga', referenced in aalt feature, either is not defined or had no rules which could be included in the aalt feature.
It still compiles, but what has changed that the aalt feature is no longer applicable? Doesn't defining features there cause the glyph palette in Adobe apps to have sub-menus for selected glyphs?