v1.3.1 – IEO Launch Date Confirmed: January 27, 2026

Release v1.3.1 – IEO Launch Date Confirmed: January 27, 2026

Summary:
This release updates all official documentation to reflect the confirmed Initial Exchange Offering (IEO) date for the SACE Index ($SACE) on UpBit Exchange.

Changes:

IEO Launch Date: Updated from TBA → January 27, 2026

README and SACE_FIRST_IEO.md synchronized with the confirmed schedule

Ensures consistency and clarity for investors, contributors, and partners

Impact:

Provides accurate, up-to-date information for all stakeholders

Supports marketing and investor communications with the official launch date

Links:

GitHub Repository: https://github.com/abba-platforms/SACE

SACE v1.3.0 – Full System Architecture & Operational Reference

SACE v1.3.0 introduces the complete System Architecture documentation, providing a detailed reference for developers, auditors, and ecosystem partners. This release covers:

• Core Architecture: SACE Proxy and Implementation contracts
• Oracle Components: SACEOracleRegistry and SACEPriceUpdater
• Security & Governance: Gnosis Safe multisig control for all critical operations
• System Flow Diagram: End-to-end visualization of the oracle → updater → proxy pipeline

For full deployment details, flow diagrams, and operational guidance, see the documentation: SACE_SYSTEM_ARCHITECT.md

SACE Price Feed System v1.2.0 – Registry Upgrade & Structural Alignment

This release introduces a major structural update to the SACE Price Architecture.

• Renamed and upgraded SACEOracleRegistry_flat.sol → SACEOracleRegistry.sol for cleaner implementation alignment.
• Integrated verified contract addresses across all documentation.
• Enhanced registry logic for multi-tier price feed handling (Chainlink + Hybrid feeds).
• Improved proxy deployment compatibility and verification consistency.
• Updated supporting files (SACE_CONTRACTS_SUMMARY.md, SACE_PROJECT_INDEPENDENT_REVIEW.md) to match new deployment flow.

This version solidifies the foundation for future integrations and external audits.

v1.1.0 — Tokenomics Expanded with Treasury & Growth Fund Allocation

v1.1.0 — Tokenomics Expanded with Treasury & Growth Fund Allocation

Release Date: 2025-11-10

Highlights

• Updated the Tokenomics Summary to include the SACE Treasury and Growth Fund allocation.
• Added details on the 17.5 Billion SACE dedicated to financing and deploying AfrailX smart-rail infrastructure systems across Africa.
• Included estimated valuation of the Treasury & Growth Fund: $402.5 Billion USD.
• Enhanced transparency and clarity for investors and stakeholders regarding the ecosystem growth and regional integration strategy.

Other Notes

• Minor formatting updates to the Tokenomics section for improved readability.
• No changes to the total max supply or IEO allocation.

For full details, see the updated SACE Tokenomics IEO Framework.

SACE v1.0.9 – Independent Financial Review Summary Added and README Updated

This release adds a short summary of the independent financial and strategic review of the Synthetic African Currency Exchange (SACE) to the README. The summary highlights the $2.3 trillion USD FDV valuation derived from aggregated African GDP, emphasizes transparency and investor insights, and references the full report SACE_PROJECT_INDEPENDENT_REVIEW.md for detailed analysis. This update improves visibility and understanding of SACE for stakeholders, investors, and the general audience.

[v1.0.8] - Comprehensive Documentation and Oracle Transparency Update for SACE Contracts

Added

• Introduced detailed investor-ready documentation outlining SACE’s smart contract architecture and trust model.
• Added new docs/SACE_CONTRACTS_SUMMARY.md explaining:
  • The SACE Proxy, Implementation, and Oracle Registry contract structure.
  • How the Hybrid Oracle model integrates Chainlink feeds with trusted external data sources (OANDA, XE, etc.) to provide reliable Tier 2 African currency pricing.
• Uploaded contracts/SACEOracleRegistry.sol (flattened version) for transparency and verification.
• Included contracts/interfaces/AggregatorV3Interface.sol dependency for Chainlink integration.

Updated

• Enhanced README.md with a concise, public-facing summary of SACE’s core components and oracle reliability, linking to the full detailed summary.

Notes

This release reinforces investor transparency by detailing how SACE’s oracle and contract system ensures secure, verifiable, and decentralized pricing for all supported African currencies. The update also improves repository organization and communication clarity for developers, investors, and exchange partners.

🚀 SACE Whitepaper Expansion & IEO Readiness

Updated the SACE Whitepaper to include detailed valuation model, basket value, market cap, and long-term growth simulations.

Added $2.3 trillion USD valuation context and per-token indicative value (~$23 USD).

Highlighted SACE’s role as a synthetic African currency index, benchmarked against Africa’s top 21 performing national currencies, similar to DJIA, S&P 500, and NASDAQ 100.

Incorporated Proxy and Verified Implementation addresses and full documentation links.

Positioned SACE for upcoming Initial Exchange Offering (IEO) and Coinbase listing readiness.

Maintains all prior content, including Executive Summary, Technical Overview, Governance, Oracle Integration, and Economic Impact sections.

Assets / Links:

GitHub Repository: https://github.com/abba-platforms/SACE

Release v1.0.6 – Proxy Upgrade and Deployment Enhancements

🚀 Release v1.0.6 – Proxy Upgrade and Deployment Enhancements

Date: 2025-10-17

Summary

This release introduces critical improvements to the proxy upgrade workflow and overall deployment stability for the SACE smart contract. It ensures proper linkage between the Proxy and the correct Implementation contract on the Binance Smart Chain (BSC), fixing earlier misconfiguration issues that caused incorrect implementation references.

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What's New

• 🧩 Proxy Upgrade Script: Added upgradeProxyUUPS.js to streamline proxy upgrade execution using UUPS pattern.
• 🔗 Correct Implementation Linking: Ensures the Proxy contract now correctly points to the verified SACE.sol Implementation Address.
• ⚙️ Hardhat Configuration Update: Refined hardhat.config.js for proper Etherscan verification, network handling, and gas optimization.
• 🔒 Deployment Validation: Introduced improved owner validation and authorization fallback for _authorizeUpgrade.

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Fixes & Improvements

• Fixed: Proxy auto-verification pointing to the wrong implementation address.
• Improved: Contract upgrade script now detects current implementation and safely performs upgrade.
• Added: Better error handling for gas and signer balance validation.
• Updated: Changelog and documentation to reflect deployment procedures.

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Technical Notes

• Requires minimum of 0.01 BNB in deployer wallet to execute the upgrade.
• Compatible with Hardhat v2.22.6 and @openzeppelin/contracts-upgradeable v5.x.
• Tested on BSC Testnet and ready for Mainnet upgrade execution.

NADD v1.0.4 — Full Trust Framework Added & README Integration

v1.0.4 - SACE Tokenomics & IEO Framework

Release Date: 2025-10-15

Overview

This release introduces the SACE Tokenomics & IEO Framework, detailing the distribution, utility, governance, and public offering structure for the Synthetic African Currency Exchange ($SACE) token.

SACE is a BEP-20 token representing a weighted basket of Africa’s top 21 currencies with a combined value of $2.3 trillion USD, providing a unified tradable instrument for tracking and trading Africa’s collective currency strength.

Key Highlights

Total Max Supply: 100,000,000,000 SACE

Founder Allocation: 55%

Executive Team & Staff: 15%

Management & Advisors: 5%

Institutional & Strategic Partners: 5%

Treasury & Ecosystem Growth: 17.5%

IEO Public Offering: 2.5% (2.5 Billion SACE) at $23 per token

IEO Framework

Soft Cap: $5 Billion USD

Hard Cap: $57.5 Billion USD

Accepted Currency: USDT

Vesting: 20% at TGE, 80% linear over 12 months

Target Exchanges: KuCoin, P2B, BitMart, MEXC

Utility

Medium of exchange on SASE Digital Securities Exchange

Collateral for digital securities issuance

Governance and voting rights

Staking for rewards and yield generation

Governance & Compliance

Managed under Abba Platforms Inc. with oversight from the SASE Governance Board

BEP-20 standard with upgradeable proxy for future improvements

Compliant with regional and international financial standards

Implementation

Smart Contract: Verified and deployed on BSC Mainnet

Proxy Address: 0x3Bb737BFaCfA48e912014686D051D6f39c747802

Upgradeable via OpenZeppelin ERC20Upgradeable proxy pattern

For full details, see the SACE TOKENOMICS & IEO FRAMEWORK document

Market-Derived Valuation Clarification

This release clarifies that the initial valuation of $23 per SACE is not a preset or fixed price determined by SACE or its creators, but rather a market-derived reference value based on the proportional relationship between SACE’s 100 billion max supply and Africa’s combined $2.3 trillion currency basket value.

🧾 Highlights

• Updated SACE_BASKET_VALUE.md introduction for better transparency.

• Reinforced the principle that SACE’s valuation follows market mechanics and index performance rather than pre-determined pricing.

• Minor language refinements for clarity and accuracy.