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Zerahx POS
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Changelog

All notable changes to Zerahx POS will be documented here.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Version 1.26.0

Released on 2026-04-24

Added

  • Enterprise-Grade Inventory Valuation Engine
  • Implemented `totalBaseUnits` as the authoritative source of truth for stock volume across all transactional touchpoints.
  • Developed a unified, hierarchy-aware valuation engine that supports both complex Medical Hierarchies (Bulk/Sub/Base) and Retail Packaged structures.
  • Integrated high-precision inventory valuation (Projected Stock Value) into the Financial and Inventory Analytics dashboards.
  • Automated "Package-Breaking" logic synchronization across Sales, Manual Completion, and Stock Transfer workflows.

Fixed

  • Financial Integrity & Stock Synchronization
  • Resolved double-counting vulnerabilities in Goods Receipt and Stock Transfer Receive modules.
  • Synchronized stock restoration logic for Voids and Returns to ensure 100% precision in clinical unit recovery.
  • Hardened the Manual Sales Completion API (M-Pesa) to align with primary Sales logic for medical unit deductions.
  • Implemented self-healing analytics with automated fallbacks to ensure zero-downtime compatibility with legacy product data.
  • Resolved TypeScript scoping and variable initialization errors in the Sales Void and Goods Receipt APIs.

Version 1.25.0

Released on 2026-04-24

Changed

  • POS Terminology Standardization
  • Standardized UI labels across Medical and Retail modes to ensure consistency and professional appearance.
  • Replaced legacy "Dispense" terminology with "Add to Cart" and "Sale" for general commerce actions in the POS.
  • Preserved clinical "Dispense" and "Dispensed" identifiers for prescription-specific fulfillment and regulatory compliance.
  • Refactored Manual Sale entry, Held Bill management, and Checkout flows to utilize dynamic, configuration-driven terminology.
  • Centralized UI label management in `BusinessConfig` to enable seamless terminology switching between business modes.

Version 1.24.0

Released on 2026-04-21

Added

  • Scheduled Maintenance Windows
  • Superadmins can now define precise `startTime` and `endTime` for planned maintenance, enabling time-based automatic activation and deactivation.
  • Middleware-level evaluation ensures maintenance mode only activates within the configured window; outside the window, the system operates normally.
  • If no times are set, legacy "immediate toggle" behavior is preserved for backward compatibility.
  • Branch-Specific Maintenance Isolation
  • Individual pharmacy branches can now be placed under maintenance independently without affecting the rest of the network.
  • Global system-wide maintenance always takes priority over branch-level settings.
  • Branch maintenance status is cached (10s TTL) for zero-latency middleware checks.
  • Premium Maintenance UI
  • Redesigned maintenance page with glassmorphism, gradient typography, and animated micro-interactions.
  • Live countdown timer displaying remaining downtime in `HH:MM:SS` format when an `endTime` is configured.
  • Dynamic maintenance messages passed contextually (global vs. branch-specific) for clear end-user communication.
  • Admin Settings — Scheduling Controls
  • Added `datetime-local` inputs for Start Time and End Time in the Superadmin Maintenance Mode settings card.
  • Human-readable schedule summary and contextual warnings (e.g., "No end time set — maintenance will stay active until manually disabled").

Version 1.23.0

Released on 2026-04-18

Added

  • B2B Wholesale & Fiscal Compliance (KRA eTIMS)
  • Integrated H.S. Code and Tax Category tracking for all inventory items to ensure full KRA eTIMS reporting compliance.
  • Developed a professional B2B Tax Invoice generator capable of displaying Buyer PINs, fiscal hashes, and granular tax group breakdowns.
  • Enhanced the product management suite with specialized fields for fiscal classification and standard wholesale pricing tiers.
  • Clinical Dispensing & Label Printing
  • Implemented an automated Dispensing Label system optimized for 50x30mm thermal printers.
  • Integrated clinical instruction persistence: dosage and frequencies are now captured at POS and archived in immutable sale records.
  • Added real-time "Patient-Direction" verification on receipts to ensure medication safety.
  • Data Integrity & Traceability
  • Extended the `SaleData` and `Product` schemas to maintain a lifetime link between prescription IDs and financial transactions.
  • Hardened the Sales API to automatically reconstruct fiscal metadata from the product catalog during checkout for data accuracy.

Version 1.22.0

Released on 2026-04-18

Added

  • Mobile-First Tooltip Accessibility
  • Implemented a long-press (500ms) interaction model for touch-capable devices, differentiating intentional tooltips from accidental taps.
  • Integrated a 3-second auto-dismissal mechanism for mobile tooltips to maintain UI clarity.
  • Developed a specialized `useLongPress` custom hook for standardized pointer event management across the platform.
  • Refactored core Tooltip components with internal state management to handle touch environments independently of hover engines.

Version 1.21.0

Released on 2026-04-14

Added

  • Fractional Inventory & Subunit Tracking
  • High-precision support for `looseUnits` and `unitsPerPackage` in the core product model.
  • Automated Package Breaking logic in the POS: the system intelligently breaks full packages to fulfill unit-level sales without manual intervention.
  • Enhanced Inventory Dashboard with "Stacked Quantity" display (Packs + Units) for real-time warehouse visibility.
  • Upgraded Stocktake Module with variance reporting for both full packages and individual subunits.
  • Wholesale Pricing Engine 2.0
  • Advanced integration of wholesale price tiers (`Wholesale`, `Distributor`) for both full packages and subunits.
  • Automated bulk discount triggers in the POS cart based on unit/package quantity thresholds.
  • Fractional pricing arithmetic that ensures zero revenue leakage during subunit transactions.
  • Production-Grade Audit & Security
  • Atomic Inventory Logs: Every package break and subunit sale is protected by ACID-compliant database transactions and logged with detailed metadata.
  • Multi-tenant isolation hardening for all new fractional inventory endpoints.
  • Comprehensive database indexing support for optimized inventory search and SKU/Barcode uniqueness.

Version 1.20.0

Released on 2026-04-10

Added

  • Functional payment rejection notifications and real-time subscription updates ([ef43ef1])
  • Display payment rejection reason in payment history ([2dfc464])
  • Automated inactivity logout implementation following security best practices ([c76d65d])
  • Touch screen optimization and login page interface improvements ([268ecf0])
  • Role-based expense category filtering with cache isolation ([f066722])
  • SEO enhancements, public landing pages, WhatsApp integration, and Search Console verification ([7672feb])

Fixed

  • Correct logger import path in regulatory data routes ([c40ff46])
  • Exclude build artifacts from code integrity checks in CI/CD ([9ab5e5c])
  • Resolve system-wide code errors, fix confidence level validation, and enhance sale history tracking ([7b086bd])
  • Revert nextBillingDate on payment rejection and auto-refresh payment banner ([209c49a])
  • Sync paymentHistory with payments collection on subscription fetch ([2567a48])
  • Code integrity enhancements and batch auto-fix script ([723eb69])
  • Update subscription paymentHistory when payment is rejected ([01d8cc2])

Version 1.19.0

Released on 2026-04-08

Added

  • Order Source & Channel Tracking
  • Integrated support for distinguishing between Walk-in, Glovo, Uber, and Bolt customer categories.
  • New selection UI in the POS payment workflow for real-time channel categorization.
  • Enhanced analytical reports with revenue and transaction breakdowns by order source.
  • Backward-compatible data architecture ensuring zero disruption to legacy sales records.

Version 1.18.0

Released on 2026-04-06

Added

  • Partner & Affiliate Marketing Module
  • New public-facing `/partners` landing page to streamline onboarding of marketers and agencies.
  • Dynamic commission calculation engine that mathematically binds bounty payouts to core system subscription tiers.
  • Incremental UI updates to global navigation and footer resources for organic partner discovery.

Version 1.17.0

Released on 2026-04-03

Added

  • Surgical Data Merge Tool
  • New non-destructive integration pattern for recovered historical regional data.
  • Timestamp-Aware Merging: Intelligently inserts missing records while protecting data created after the restoration window.
  • Field-Level Security: Critical system states such as Tiers, Subscriptions, and Settings are protected from unintended rollbacks during data merging.
  • New "Surgical Merge" dashboard utility for authorized administrative users.
  • Enhanced Data Recovery UI
  • Clear architectural distinction between "Surgical Merge" (incremental) and "Destructive Restore" (full overwrite) operations.
  • Implementation of multi-step confirmation protocols for all data-altering administrative actions.

Version 1.16.0

Released on 2026-04-02

Added

  • System Backup Notification System
  • High-visibility notification for administrative users to ensure data redundancy.
  • Configurable backup frequencies (Daily, Weekly, Monthly) via system settings.
  • Automated tracking of manual backup timestamps to provide accurate reminder triggers.
  • Data Sovereignty Enhancements: Distinguished between managed storage and manual exports to mitigate vendor-specific region failures.

Version 1.15.0

Released on 2026-04-02

Added

  • Legacy Partner Tier Data Restoration
  • Administrative utility for surgical restoration of missing individual accounts, including account, subscription, and settings recreation.
  • Migration protocols to move historical accounts to the legacy tier with active status, preserving original partnership benefits.
  • Idempotent restoration logic to prevent data duplication or mismatches on repeated execution.

Fixed

  • Split Payment Receipt Accuracy
  • Corrected recording and display of `Tendered` and `Change` amounts across all receipt formats (thermal, PDF, and invoice).
  • Backend payment logic refined to accurately calculate applied payments when change is involved for full audit compliance.
  • Bulk Restore Resilience
  • Batch restoration now gracefully handles pre-existing records and provides detailed reporting on successful versus skipped entries.

Version 1.14.0

Released on 2026-03-31

Fixed

  • Subscription Management Refinement
  • Resolved an issue where manual payment recording did not immediately reactivate suspended accounts.
  • Improved data consistency for financial status updates during payment confirmation.

Version 1.13.0

Released on 2026-03-29

Added

  • Tiered Feature Gating Architecture
  • Centralized server-side enforcement mechanism for feature access control.
  • Strict UI-level gating to ensure navigation and features align with subscription tiers.
  • Trial Access Standardization
  • Standardized platform access during active trial periods.
  • API Security Enhancements
  • Automated revocation of downstream tokens upon subscription tier changes to prevent unauthorized access.
  • Partner Protection Logic
  • Preservation of historical benefits for long-term partners through automatic legacy tier assignment.
  • Wholesale B2B Module
  • Dedicated wholesale customer management with tier-specific pricing.
  • Bulk invoice generation and specialized sales workflows.
  • eCommerce Integration Pipeline
  • Direct synchronization between external eCommerce storefronts and POS inventory.
  • Automated order status synchronization with inventory reservation.
  • Purchase Discount Support
  • Support for line-item and order-level discounts within Goods Receipt Notes (GRN).

Changed

  • Refactored user session handling to provide a more robust abstraction for tier and trial status.
  • Standardized navigation and settings configurations to respect multi-layer authorization.

Version 1.12.0

Released on 2026-03-24

Added

  • Historical Batch & Expiry Management
  • New management system for pharmaceutical inventory stock movements.
  • Automated batch assignment for transactions and returns.
  • Comprehensive expiry monitoring and batch-aware visualizations.
  • Split Payment Support
  • Support for multiple payment methods per transaction.
  • Robust validation for split transaction sequences.
  • Offline Capabilities & Mobile Ready
  • Full offline application support for operational continuity during network outages.
  • Local transaction queuing with background synchronization.
  • Conflict resolution and inventory detection during offline sync.
  • Stocktake Management System
  • Automated scheduling for stocktake cycles.
  • Interactive calendar interface for session management.
  • Template-based configurations and variance trend analysis.
  • Data Entry Safeguards
  • Server-side uniqueness validation for supplier data.
  • Frontend submission guards to prevent redundant record entry.
  • Input Validation Standardization
  • Real-time phone format validation for Kenyan mobile numbers.

Fixed

  • Inventory Concurrency Fixes
  • Resolved stock conflict errors in high-concurrency environments.
  • User Interface Refinements
  • Disabled browser-default spinners on numeric inputs to prevent accidental value changes.
  • Implemented focus-management to prevent unintended field updates during scrolling.

Changed

  • Session Timeout Configuration
  • Adjusted inactivity timeout settings for specific operational roles.
  • Navigation & Brand Refinement
  • Improved navigation menu efficiency and updated system messaging.

Version 1.11.0

Released on 2026-03-02

Added

  • Regulatory Integration: KRA eTIMS
  • Real-time automated tax invoice transmission to the Kenya Revenue Authority.
  • Integration with regulatory sales control architecture.
  • Automated Credit Note and Void Notification handling.
  • Support for mandatory regulatory fields and compliance reporting.
  • Enhanced PDF outputs with QR codes and verification hashes for regulatory compliance.

Version 1.10.0

Released on 2026-03-02

Added

  • External Order Management
  • Seamless bridge between online storefronts and the central POS system.
  • Integrated dashboard for managing external orders (Pending, Approved, Completed).
  • Atomic inventory and financial synchronization for external fulfillment.
  • Concurrency protections to prevent duplicate transaction processing.

Version 1.9.0

Released on 2026-01-12

Added

  • Global Localization Support
  • Support for business-specific currency symbols across the platform.
  • Financial Reporting Dashboard
  • Centralized oversight of claims, expenses, and cash operations.
  • Enhanced analytics for settlement and insurance performance.
  • Configurable Loyalty System
  • Control over loyalty point rules and promotional thresholds.

Fixed

  • System Stability Enhancements
  • Improved data processing resilience in financial tracking modules.
  • Hardened analytics reports against malformed data.

Version 1.8.1

Released on 2025-12-24

Added

  • Payment Lifecycle Notifications
  • Real-time notifications for administrative actions on subscription payments.
  • Status and reasoning visibility for rejected payment entries.
  • Automated Session Security
  • Implementation of session timeouts with adaptive activity heartbeats.
  • SEO & Discoverability
  • Implementation of SEO metadata and structured data for public-facing routes.

Fixed

  • Improved internal logging consistency.
  • Standardized build process to exclude build artifacts from type-checking.
  • Resolved various edge cases in transaction tracking and subscription state synchronization.

Version 1.8.0

Released on 2025-12-03

Added

  • Integrated Card Payments
  • Support for Visa, Mastercard, and other major card networks via secure integrated processors.
  • PCI DSS compliant processing — sensitive card data is never stored locally.
  • Automated checkout completion upon payment confirmation.
  • Support for transaction tracking and administrative configuration of payment credentials.

Version 1.7.0

Released on 2025-12-03

Added

  • Payment Automation Enhancements
  • Automated checkout completion for M-Pesa STK push payments.
  • Support for recording customer overpayments.
  • Enhanced visibility of payment status in sales history and reports.
  • Public Website Enhancements
  • Refined showcase of system capabilities and integration guides.

Changed

  • Sales Transparency
  • Improved display of payment status in transaction views.
  • Standardized reporting to handle incomplete payment states.

Version 1.6.0

Released on 2025-11-29

Added

  • Data Management System
  • Comprehensive backup utilities for data preservation.
  • Automated backup procedures before system-level resets.
  • Data Integrity Tools
  • Managed restoration process for resuming operations from saved states.

Version 1.5.0

Released on 2025-11-20

Added

  • Touch Interface Optimization
  • Specialized support for touch-enabled devices and monitors.
  • Optimized UI controls and button sizing for touch interactions.

Version 1.4.0

Released on 2025-11-18

Added

  • System Automation & Scheduled Tasks
  • Scheduled tasks for subscription billing alerts and audit trail maintenance.
  • Automated notifications for operational events.
  • IP-Based Access Control
  • Rate limiting and enhanced session management.

Version 1.3.0

Released on 2025-11-15

Added

  • Advanced Inventory Analytics
  • Implementations for ABC analysis and stock turnover metrics.
  • Customer Loyalty Framework
  • Tiered membership programs and points-based rewards.
  • Supplier Performance Tracking
  • Metrics for delivery reliability and price trends.
  • Multi-Branch Operations
  • Centralized dashboard for chain-wide visibility and reporting.
  • Prescription & Medication Management
  • Enhanced history tracking and safety alerts.
  • Financial Forecasting Tools
  • Break-even analysis and cash flow projections.

Version 1.2.0

Released on 2025-11-10

Added

  • Centralized Product Catalog
  • Standardized product data and category management.
  • Performance Improvements
  • Enhanced responsiveness for product updates and record editing.

Version 1.1.0

Released on 2025-11-05

Added

  • Stock Audit & Transfer System
  • Inventory variance tracking and inter-branch movement management.
  • Branch Management Utilities
  • Multi-location support and centralized administration.
  • Internal Communication System
  • Notification frameworks for system events and transfers.

Version 1.0.0

Released on 2025-11-01

Added

  • Initial production release.
  • Core POS and secure multi-business data isolation.
  • Comprehensive modules for sales, inventory, and pharmacy management.
  • Integrated security, audit logging, and role-based access control.