You can view what's changed with this huge 35MB update here, in the 1.0.7 patch notes:
https://elyswer.itch.io/white-pearlrpg/devlog/22986/patch-107-notes
An alternate ending has been added! The alternate ending can only be accessed during Chapter 13, in the new dungeon, Tower of Souls - accessed at the island near Jelesta.
Accessing the alternate ending:
When Pearlto's speech becomes available, the Tower of Souls can be found near Jelesta.
Please enjoy the new ending, the surprises to go with it, as well as the changes that came with this patch!
Thank you so much for the support! :)
Another content update @ 19/02/18: The main final boss battle has been extended with additional sequences and dialogue.