Polymesh chain v8.1.1 adds holder-level asset freezing - freeze a single account or portfolio, or part of a holder's balance - plus a controller transfer that delivers to a named recipient. v8.1.2 closes the gaps in how that freeze is enforced.
Breaking changes to the POLYX Balances pallet in Polymesh chain v8 - transfer calls, events, account storage layout, and migration guidance for exchanges, custodians, and wallets.
Runtime-level changelogs for Polymesh chain releases, covering breaking changes, new features, and migration guidance for node operators and integrators.
Polymesh chain v8 adds the new Confidential Assets (PCA) pallet - available on Testnet and Develop, not yet on Mainnet.
Polymesh chain v8.1.1 supports EVM-keyed accounts as subsidy beneficiaries and MultiSig signers, makes authorization acceptance fee-free for them, and restricts transaction tipping to the Governance Committee.
Mechanically generated, pallet-by-pallet reference of every added, removed, and modified call, event, error, storage item, and constant between Polymesh chain v7.4 and v8.0, derived from on-chain runtime metadata.
Pallet-by-pallet reference of every added and modified call, event, error, storage item and runtime API between Polymesh chain v8.0.2 and v8.1.2, including the v8.1.2 permission and settlement fixes.
Polymesh chain v8.1 exposes every native fungible asset as an ERC-20 token through a pallet-revive precompile; v8.1.1 completes the ERC-3643 and ERC-7943 surface with pausing, agent checks, partial freezing and recipient-directed forced transfers.
Breaking changes to the Identity pallet in Polymesh chain v8 - CDD service providers renamed to DID registrars, self-service DID registration, and removal of child identities.
Breaking changes to the Asset, NFT, and Portfolio pallets in Polymesh chain v8 - the AssetHolder model that lets accounts hold assets directly, not just portfolios.
Polymesh chain v8.1.1 adds per-token and collection-wide NFT approvals, spender-mode NFT transfers through Settlement::transfer_funds, and NFTApi version 4.
Polymesh chain v8.1.1 exposes every NFT collection as an ERC-721 token through a pallet-revive precompile, with ERC-721Metadata token URIs, ERC-165 introspection and ERC-7943 transfer checks.
Remaining Polymesh chain v8 changes not covered elsewhere - transaction fee pallet split, Sudo, authorized runtime upgrades, the CheckMetadataHash signing extension, Scheduler retries, and new light-client pallets.
Remaining Polymesh chain v8.1.2 runtime changes - the runtime version, storage migrations, re-benchmarked weights, EVM permission checks against the underlying extrinsic, a Grandpa CurrentSetId fix repairing warp sync, and the DART audit report.
Executive summary, breaking-change themes, and migration checklist for upgrading integrations from Polymesh chain v7.4 to v8.0.
Executive summary and migration notes for upgrading integrations from Polymesh chain v8.0 to v8.1.2 - EVM precompiles for fungible assets, NFT collections and general runtime calls, holder-level asset freezing, NFT approvals, ETH wallet support, and the v8.1.2 correctness fixes.
Polymesh chain v8.1.1 adds a general-purpose precompile exposing asset creation, ticker registration, DID onboarding and external agent authorization to EVM contracts.
Breaking changes to the Relayer pallet in Polymesh chain v8 - the new approve/accept/revoke subsidy flow, and relay_tx moving from Utility to Relayer.
Changes to Polymesh's state_call runtime APIs (AssetApi, StakingApi, SettlementApi, IdentityApi, and others) and the node's JSON-RPC method surface between chain v7.4 and v8.0.
Breaking changes to the Settlement pallet in Polymesh chain v8 - instruction legs, affirmations, and receipts moving from portfolios to the AssetHolder model.
Polymesh chain v8 adds pallet-revive, a dual-VM (PolkaVM + EVM) smart contract engine, as the only smart contract pallet on Polymesh.
Breaking changes to the Staking pallet in Polymesh chain v8 - the new Validators pallet, bond/controller signature changes, paged payouts, and ledger migration.
The correctness and permission fixes Polymesh chain v8.1.2 applies on top of v8.1.1 - freeze enforcement in transfer reports and portfolio moves, STO settlement verification, refused Except permissions, and the custody and MultiSig permission checks.