Description

There are two changes proposed here:

- A runtime upgrade of Coretime system chain to 1.6.0.
- Increasing the number of cores from 100 to 140.

The runtime upgrade is meant to fix the current Coretime situation on Kusama. It does this by the following:

1. We configure a minimum price of 1 KSM, to prevent prices to drop to unreasonable low values, which cause the system to take forever to recover in case demand picks up.
2. Renewals are now no longer completely decoupled from the market, but will be adjusted to cost at least the end price of the current sale. Immediate effect will be that renewals will be adjusted to the minimum price too.

Details are outlined in https://github.com/polkadot-fellows/RFCs/pull/149.

Some fellowship members had a call with all parachain teams describing changes of RFC-149 in detail and from what I know they were on board and want the coretime issue get fixed.

The enactment block was chosen to be https://kusama.subscan.io/block/29059999. Note however, that both changes will take place in the next sale period after the enactment, which is around July 21/22.

Build

opengov-cli build-upgrade --network kusama --only --coretime "1.6.0"
# modify the build call to 0x630004000100b50f04082f0000060202eb4353e21a0600a428020800095b5a86cc8055e729b7b8660f2f551d8bfe6712b24d2e637a0624444addcc8d2e32128c00
opengov-cli submit-referendum \
    --proposal "0x630004000100b50f04082f0000060202eb4353e21a0600a428020800095b5a86cc8055e729b7b8660f2f551d8bfe6712b24d2e637a0624444addcc8d2e32128c00" \
    --network "kusama" --track whitelistedcaller --at 29059999