As the foundational infrastructure of the DePaaS ecosystem, the DEP public chain is undergoing a systematic upgrade centered on upgradeability, security-by-design, modular expansion, and governance-first principles. Built around eight core contract modules, the upgrade unifies toolchains, governance and security, application enablement, and ecosystem collaboration to serve developers, creators, and asset participants with a future-proof Web3 runtime.

Positioning and Objectives

DEP aims to be the trusted base layer for the next-generation Web3 builder platform. Standardized upgrade and modular architecture lower the cost of complex features and rapid iteration, while governance and risk control are embedded end-to-end, operationalizing “technology as governance.” Beyond powering flagship products like MetaCove, DEPocket, and DESwap, DEP continuously onboards new builders and asset projects to form a sustainable decentralized value network.

Eight Core Modules (Contracts and Governance)

1）UUPS Upgradeable (ERC-1967)

l Problem: Evolve logic safely while keeping addresses stable.

l Key mechanics: UUPSUpgradeable with ERC1967 slots and guarded authorizeUpgrade; low-gas, auditable path.

l Use cases: Core protocol, settlement, parameter hubs.

l Security/governance: Timelock + multisig, pre-deployed rollback, Pausable, staged rollouts for breaking changes.

l Best practices: Versioned changelogs, ABI/event diffing, exhaustive tests, single upgrade entry via governance.

2）Diamond Modular (EIP-2535)

l Problem: Tame complexity via Facets and dynamic feature lifecycle.

l Key mechanics: DiamondCut selector routing, DiamondLoupe introspection, diamond-storage to isolate state.

l Use cases: Multi-product, multi-market protocols (trade, rewards, governance, liquidation).

l Security/governance: DAO proposal → Timelock → Cut; strict facet permissions and circuit breakers.

l Best practices: Single-responsibility facets, versioned storage, standardized cross-facet calls, public interface allowlists.

3）Beacon Proxy Fleet Upgrades

l Problem: Upgrade many instances at once for multi-tenant/pool/asset fleets.

l Key mechanics: UpgradeableBeacon holds implementation; BeaconProxy reads pointer; one upgrade, many contracts updated.

l Use cases: Vault families, strategy pools, markets, NFT collections.

l Security/governance: Multisig+timelock, canary batches, on-chain instance→version registry.

l Best practices: Risk-tiered cohorts, snapshot/replay, shadow deployments, post-upgrade automated checks.

4）Timelock (TimelockController)

l Problem: Enforce reviewable windows for critical changes.

l Key mechanics: minDelay, role separation, queue/execute/expiry.

l Use cases: Param changes, upgrades, treasury moves, permission migrations.

l Security/governance: DAO-controlled delays, emergency “long-delay + second approval”, public queue and digests.

l Best practices: Risk-based delays and quorums, signed data snapshots for oracle-dependent proposals.

5）DAO Governance (Governor + ERC20Votes)

l Problem: Put protocol power on-chain—technology as governance.

l Key mechanics: Proposal/vote/execute pipeline, delegation and snapshots, quorum/thresholds/voting windows.

l Use cases: Fee schedules, listings, treasury grants, module on-boarding, bridge controls.

l Security/governance: Timelock integration, anti-Sybil, multi-weight schemes (stake, hold, contribution).

l Best practices: Off-chain deliberation (Snapshot), proposal templates, periodic parameter reviews and simulations.

6）Multisig Control (Gnosis Safe + Modules)

l Problem: Multi-party authorization for sensitive ops.

l Key mechanics: m-of-n thresholds, policy modules (limits, whitelists, rate-limits), HSM/hardware support.

l Use cases: Upgrades, treasury, bridge allowlists, critical params.

l Security/governance: Diverse signers, rotation, big-TX dual-confirm + delay.

l Best practices: Tiered safes by domain, signature aggregation, observability dashboards and immutable logs.

7）Zero-Knowledge Readiness (zkProof)

l Problem: Verifiable compute/compliance without revealing data.

l Key mechanics: On-chain Groth16/Plonk verifiers, standardized proof formats, rollup/prover integrations.

l Use cases: Selective disclosure (KYC/AML), private settlement, cross-domain attestations, anti-bot proofs.

l Security/governance: Trusted setup hygiene, expiry and replay guards, proof aggregation to manage cost.

l Best practices: Open circuits, third-party audits, general-purpose + domain circuits, regulator-friendly attestations.

8）Versioning & Rollback (Registry + ABI Tracking)

l Problem: Controlled evolution and safe retreat paths.

l Key mechanics: On-chain registry of impl addresses + semantic versions + interface hashes (EIP-165/4byte), staged rollouts, snapshots and emergency rollback.

l Use cases: Major upgrades, interface extensions, hotfix reverts, parallel branches.

l Security/governance: Rollback mirrors upgrade governance; safe “golden” anchors; two-phase votes for breaking changes.

l Best practices: Enforced SemVer, CI ABI/event diffs, pre/post performance-security baselines, full runbooks and postmortems.

Security and Risk Management

“Verifiable and traceable” is the guiding rule: multisig plus timelock form a dual lock on changes; key contracts undergo audits and high-coverage testing; on-chain monitoring flags abnormal transfers, privileged calls, and treasury/LP operations; public bounty programs and emergency rollback keep the protocol controllable under stress.

Developer Experience and Operations

DEP is fully EVM-tooling compatible (Hardhat/Foundry/OpenZeppelin). It offers scaffolds, templates, and best practices; configurable roles/permissions and parameterized governance interfaces; one-click multi-env deployment (testnet/canary/mainnet), version pinning, event indexing, and observability dashboards. A registry and interface accreditation process secure cross-product integrations.

Interoperability and Performance

Interoperability prioritizes trusted integrations within the DEP ecosystem and standardized messaging with leading cross-chain protocols (aligned with DESwap’s asset channels). Performance strategy keeps L1 conservative and governance-friendly while planning L2/parallelization and zk-enhanced paths for “high throughput with compliance.”

Use Cases and Ecosystem Synergy

l MetaCove: Social identity, content trading, voting, and space governance rely on DEP’s secure upgrade and governance rails, enabling continuous evolution of topics, NFT-ized media, and AMA scenarios.

l DEPocket: MPC-centric wallet permissions, frictionless signing, and on-chain access control have clear audit trails, with blacklist/whitelist risk policies integrated into chain monitoring.

l DESwap: From cross-chain assets to perps, launchpad, and veToken governance, DEP’s modularity and fleet upgrades power multi-market/multi-asset operations and rapid innovation.

Roadmap and Vision

Near-term: harden version registries, standardize governance processes, and publish partner integration specs. Mid-term: bring zk capabilities to production privacy/compliance use cases and standardize cross-chain messaging and asset gateways. Long-term: become the base layer of a decentralized value network where “technology is governance, social is consensus, and assets are participation.” Through steady iteration and open collaboration, DEP will keep upgrading its product ecosystem and co-build the next generation of Web3 with the community.