[Runtime] RT4100/4101 Schedule

Development Runtime upgrades
2

Moonbeam Runtime 4100 — What it means for you

This release delivers important staking UX improvements, Asset Hub readiness, and runtime cleanups, alongside a key collator configuration update.

:star: Parachain Staking improvements
:backhand_index_pointing_right: Added bounded, FIFO multi-request support for delegation scheduling, allowing delegators to queue multiple unbonding or delegation changes safely.
:backhand_index_pointing_right: Reduced minimum collator candidate stake from 500k → 100k GLMR, lowering the barrier to become a collator and improving decentralization.

:sparkles: Asset Hub–ready cross-chain execution
:backhand_index_pointing_right: Updated XCM Transactor to fully support the Asset Hub migration, ensuring smooth remote execution and staking operations post-migration.

Additional upgrades include:
:full_moon: Fixed gas calculation issues in the Collective precompile
:full_moon: Removed legacy multi-block and lazy migrations from parachain staking
:full_moon: Replaced deprecated consensus converters with the new ExternalConsensusLocationsConverterFor
:full_moon: Upgraded to Polkadot SDK stable2506 for improved stability and forward compatibility

:warning: Breaking change:

  • Storage layout update in pallet-parachain-staking:
    DelegationScheduledRequests moved from a single StorageMap (by collator) to a StorageDoubleMap keyed by (collator, delegator).
    → Indexers and dApps querying staking schedules must update accordingly.

:wrench: Client requirement:

  • Collators must upgrade to client v0.49.0 before Runtime 4100 is enacted.

No gas or ABI changes for EVM contracts—this release focuses on staking flexibility, cleaner runtime state, and long-term cross-chain readiness.

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