polkadot-sdk
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Elastic scaling: cumulus node + parachain system changes
On the node side:
- Use v2 receipts, guarded by some rust feature or relay chain feature bit
- Compute core index for receipts
- expose claim queue offset value from prachain runtime
- slot based collator: build on cores selected by runtime via UMPSignal
In the runtime we need to make some changes to the parachain-system pallet. It needs to send the UMPSignal upward message: