Pokémon Sleep has announce that Version 2.3.0 will be released on December 17th, 2024, and it adds New Features and includes Bug Fixes. To update to the app’s new version, maintenance will be conducted in the following time period.

Maintenance and Version 2.3.0 Update

To update to the app’s new version, maintenance will be conducted in the following time period.

Maintenance Period: Starts: 2024/12/16 23:30
Ends: 2024/12/17 04:00

Balance Adjustments

■ Changes to certain Pokémon’s main skills
Ditto
Before change: Charge Strength S
After change: Transform (Skill Copy)

Mime Jr. and Mr. Mime
Before change: Charge Strength S
After change: Mimic (Skill Copy)

When either of these new main skills—Transform (Skill Copy) or Mimic (Skill Copy)—triggers, the main skill of one randomly chosen helper Pokémon on your team will trigger.

Notes: Main skill levels will be maintained after the update.
Main skills of Pokémon you have already befriended will also change.

Adjustments to certain helper Pokémon’s helping stats

Arbok
• Frequency shortened slightly

Pikachu (Holiday)
• Frequency shortened slightly
• Carry limit increased

Cramorant
• Main skill chance increased slightly

Comfey
• Ingredient finding chance increased slightly
• Main skill chance increased slightly

New Features

■ Preparation for the Holiday 2024 — Double Dream Shard Research event
Please see the event news for more details.

■ Addition of a new Relaxing Sound, “Forest”

Game Contents

■ Adjustments to the mission screen
When you have already completed all the limited-time event missions and tap the mission button on the home screen, the weekly mission screen will pop up.

■ Changes to the effects and description of the Metronome main skill
Before change: Uses one main skill chosen randomly out of all main skills.
After change: Uses one main skill chosen randomly from a large selection of main skills.
Certain special main skills that will be added in the future will not be triggered by Metronome.

Other

■ Adjustments to Sleep Point Exchanges
Beginning on 2024/12/31 19:00, 1 Main Skill Seed will be included in the Regular Exchange.

■ Some text adjusted or unified

■ Other small bug fixes and adjustments

Source: https://www.pokemonsleep.net/en/news/323131383938303237373736393333383839/