For the complete documentation index, see llms.txt

Ledger

The ledger in Midnight is a public record of contract states and token states, consisting of Zswap’s cryptographic commitments and a mapping of contract addresses to their respective states.

Link to related documentation

To download the component, click the appropriate link under Artifacts.

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VersionAll8.1.28.1.18.1.08.0.38.0.27.0.04.0.03.0.6

StatusAllLATESTSUPPORTEDUNSUPPORTEDDEPRECATED

Release 8.1.2LATEST

24 August 2026

Artifacts

• Ledger
• GitHub release

Summary

• Hardens low-level deserialization across serialize, base-crypto, storage, onchain-state, onchain-vm, and transient-crypto: non-canonical encodings and values violating type invariants no longer decode.
• An 8.1.2 node rejects data an 8.1.1 node accepts; the change is breaking only for environments containing maliciously formed transactions.
• Delivered to mainnet nodes prior to the public release.
• Fixes several panic and overflow paths: DustParameters::time_to_cap zero-divide guard, saturating Dust seq increments and delta accumulation, and Zswap binding randomness extraction no longer panics.
• All bumps are patch-level with internal dependencies pinned exactly, so consumers cannot resolve past the fix.