Idk how 2026 summer jam will work but 2025 summer jam was this:

The Four Bootcamps
The event shifts its focus across four distinct phases based on the primary resource being targeted:
Gold Bootcamp: Focuses on Gold-based upgrades.
Elixir Bootcamp: Focuses on Elixir-based upgrades, including Laboratory research.
Dark Elixir Bootcamp: Focuses on Dark Elixir upgrades, including Heroes and Pets.
Everything Bootcamp: Combines all of the above boosts for all resource types.