Today's patch added 3 skins to the game; 2 are new while 1 is a re-release of the Tragic Torch.
People who previously obtained the Tragic Torch during the Cyclum Puzzle (in 2016) now owns a Timeless rarity Tragic Torch (previously Loyal rarity). While people who obtains the Tragic Torch during the current Cyclum / Metheus Puzzle (in 2017) will obtain it under the Loyal rarity. Also notable, the Timeless rarity now has its own rarity color (previously it shared the same color as Event rarity).
In addition, two small features were added to the checklist:
New Release Tag / Filter
Newly added skins to the game will now have a "New Release" tag under its skin name for 7 days (from its addition). Hovering over this tag will show when the skin was added to the game. Moreover, while there is at least one skin in the checklist with the "New Release" tag, a "New" filter button will appear next to "All" and "Duplicates". Clicking this button will display only the newly released skins. This will hopefully make it easier for people to distinguish which skins are new to the game and which are not.
Duplicates Total Tally
When using the "Duplicates" filter, the tally indicator will now also show the total number of duplicated skins you have in total (per rarity and overall) if you own more than one copy of one or more skins. This should make it simpler for people (that have many multiples of the one skin) to know if they have enough skins for use in the Trade Inn. As a reminder, the "Duplicates" filter button only appears if you previously synced the checklist with your Steam inventory and have at least one duplicate skin.
As before, the website and HTML file links are unchanged. Finally, here are a few screenshots of Version 1.70 (~2.16MB):
EDIT (04/18/17): The skin rarities of the Ancient King's Chest and Ancient Cane were changed (from Loyal) to Timeless in today's patch. The checklist has been updated to Version 1.71 to reflect these changes.
EDIT #2 (04/22/17): As 7 new granted skins were added in yesterday's patch, the checklist has been updated to Version 1.72. In a similar fashion to reward skins, the checklist will automatically check/uncheck the corresponding granted skin as owned when you check/uncheck the base skin. A prompt will also appear near the bottom of the screen when this happens. Moreover, a big thank you to @ImDaMisterL and @PeterA for providing higher resolution images of these skins.
EDIT #3 (04/24/17): Today's patch added 2 additional granted skins. Accordingly, the checklist has been updated to Version 1.73.
EDIT #4 (04/25/17): Two more granted skins were added today, so the checklist has been updated to Version 1.74.
EDIT #5 (04/27/17): The Floppy Miner Hat, Bumble Fire Staff, and Bumble Ice Staff were re-named to Frilly Headlamp, Fiery Bumble Staff, and Icy Bumble Staff respectively in today's patch. So, Version 1.75 has been uploaded.
EDIT #6 (04/28/17): Ancient Explorer was renamed to The Ancient Explorer in today's patch. The checklist has therefore been updated to Version 1.76.
EDIT #7 (05/18/17): Two new skins and one new rarity modifier/color were added in today's patch. The checklist has therefore been updated to Version 1.77.