Some attributes of Desk Calendar and Jingle Bells started to update—and by that I mean they started changing their rarities. For example:
🗓 June — 0.6% › 0.5%
🗓 August — 0.6% › 0.5%
🗓 Ninety Nine — 0.8% › 0.7%
... and so on. This happens, of course, because of crafting mechanic — some gifts get burned, and they stop being counted into the rarity percentage. I've set up a script that automatically updates rarities of craftable gifts once every 30 minutes, so the API and CDN should be up-to-date almost instantly.