Versioning is located in Build Settings for the app and extension:
In Xcode, click on one of the targets then > Build Settings > scroll down to "Versioning" >
Current version = major updates
Marketing version = minor updates -- I expect that is where you will see your "2.6".
(NOTE: you need to change the marketing version numbers in both targets, and make sure they are the same)
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The accessibility tags can be manually added to stickers by editing the JSON file that is in the same folder as the sticker. Folder: "YourStickerSet StickerPackExtension" > Stickers.xcstickers > Sticker pack.stickerpack > STICKERNAME.sticker > contents.json
YourStickerSet = whatever your app extension is named, STICKERNAME = the individual sticker's name within your sticker set.
Add the line: "accessibility-label" : "your accessibility tag goes here",
eg: (from one of my sticker sets)
"properties" : {
"accessibility-label" : "Christmas card folded - caption is Merry Christmas",
"filename" : "CardLandscape1.png"
}