Runtime release notification
Hello,
This is to advise you that the Polkadot community is currently voting to upgrade the Kusama Relay chain to the v1.5.0 release.
This is a major runtime upgrade that enables Elastic Scaling on Kusama, as part of a new scalability model described in depth here.
Breaking change: 
This v1.5.0 release contains a change that adds an additional parameter to the dry-run
functionality, which is a breaking change for the Runtime API. You can find more information about this change here.
We recommend that all ecosystem builders that are calling the DryRunApi
upgrade their code to handle the function signature.
Important note for Ecosystem builders: 
The v1.5.0 release contains a change that enforces switching from Version 1 to Version 2 of the CandidateDescriptor
primitive used by parachain consensus and exposed in the events CandidateBacked
and CandidateIncluded
.
Tooling and indexers that display this information must be updated to target the correct version of the primitive by following the instructions posted here.
The projected enactment date for this runtime upgrade is 9th May 2025.
Many thanks.
Runtime release notification
Hello,
This is to advise you that the Polkadot community is currently voting to upgrade the Polkadot Relay chain to the v1.5.0 release.
Breaking change: 
This v1.5.0 release contains a change that adds an additional parameter to the dry-run
functionality, which is a breaking change for the Runtime API. You can find more information about this change here.
We recommend that all ecosystem builders that are calling the DryRunApi
upgrade their code to handle the function signature.
Important note for Ecosystem builders: 
The v1.5.0 release contains a change in the CandidateDescriptor
primitive used by parachain consensus and exposed in the events CandidateBacked
and CandidateIncluded
.Tooling and indexers that display this information must be updated to target the correct version of the primitive by following the instructions posted here.
Additional notes for Ecosystem builders:
A Polkadot Technical Fellowship calendar has been set up to log basic information about upcoming runtime releases and Technical Fellowship calls. You can subscribe to the Google calendar to access advance notices in real time.
The projected enactment date for this runtime upgrade is 14th May 2025.
Many thanks.