If you are a developer looking for features added in that specific version, or if you are looking to "develop" new capabilities via mods or trainers, here are the key highlights: Official Features & Changes (v2023.01)
: This version coincided with the release of the "Life of Insects" DLC (released January 19, 2023), which added bug-themed outfits, nature-themed furniture, and the "Lucky Mallet" gadget. Developer/Modding Features (Trainers & Cheats) File: DORAEMON.STORY.OF.SEASONS.FOTGK.v2023.01....
The primary official changes in this January 2023 update included: If you are a developer looking for features
: Drastically speeds up friendship building with NPCs like Lumis or the townspeople. : The interaction range for NPCs was improved
: Removes the need to manage energy or refill watering cans.
: The interaction range for NPCs was improved to prevent accidental "talking" while near specific objects.
: Rainfall probabilities were increased for Mid to Late-Spring and Early-Summer. Snow probabilities were increased for Mid to Late-Winter.