U-Gen.AI/Docs
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Changelog

Release notes and API changes for U-Gen. All releases are backwards-compatible within the current API version.

API Versioning

The U-Gen API is versioned via the URL path (/api/v1/). Breaking changes are only introduced in new major versions. Minor updates add new fields and endpoints without breaking existing integrations.
v1.6.12026-04-27

Free-tier Credit Adjustment

  • FixedFree-tier signup credit grant reduced from 250 to 150 to match the displayed allowance and avoid a misleading "Prepaid · 100" split on the dashboard.
  • FixedRestored on_auth_user_created trigger after a migration drift incident left new signups without tenant rows.
v1.6.02026-04-26

Auth Hardening

  • AddedGoogle OAuth sign-in on /login and /signup with offline + consent prompts for refresh-token issuance.
  • AddedPassword strength meter on /signup with 5-segment bar and per-rule checklist; minimum length raised from 6 to 8 characters.
  • AddedEmail-verification UX: 30-second resend cooldown, friendly 429 mapping, emerald flash on /login?verified=1, amber banner on unverified-signin attempts.
  • AddedFive branded HTML email templates (Confirm signup, Magic Link, Reset Password, Invite, Change Email) with U-Gen palette and Outlook compatibility.
  • ImprovedFriendly "Too many attempts" message replaces raw 429 errors on signin.
v1.5.02026-04-19

Subscriptions & Tier Gating

  • AddedFour-tier subscription model (Free, Creator, Business, Enterprise) with monthly and annual billing cycles via Stripe.
  • AddedMonthly credit allowance per paid plan, deposited as a single-pool credit grant at the start of each billing cycle.
  • AddedPlans page (/billing) with 4-tier comparison, ring-highlight on ?focus=<plan>, and 402 upgrade-modal handshake for gated features.
  • AddedFeature-gating middleware: kling_pro, veo_quality, keyframe_hd, resolution_full_hd, qai_enabled, hitl_review, brand_kit, and api_keys all gated by tier.
  • AddedPriority queue for Business+ tenants with stricter SLAs.
  • AddedGET /tenants/me/features endpoint returning the live feature flags for the current tenant.
  • ImprovedResend wired as Supabase Auth SMTP provider; public signup now unblocked with verified domain.
v1.4.02026-04-10

Documentation Portal, Models Marketplace & Billing

  • AddedPublic documentation section with creator guides and full API reference (22 pages).
  • AddedModels Marketplace with NanoBanana 2 image generation.
  • AddedModels Playground for one-off generations across the curated model families.
  • AddedCredit-based billing with Stripe and PayPal checkout, auto-topup, and credit alerts.
  • ImprovedQA models upgraded: GPT-4o-mini for images, Gemini 2.5 Flash for videos.
  • ImprovedGraceful QA degradation: auto-pass with qa_degraded flag on model failure.
  • AddedSocial auto-posting (TikTok live, Instagram/YouTube/Facebook coming soon).
v1.3.02026-04-01

AWS Deployment & Job Templates

  • AddedAWS ECS Fargate deployment with Terraform infrastructure-as-code.
  • AddedJob templates: save and reuse video generation configurations (max 20 per account).
  • AddedRLS policies on 10 additional tables (migration 064).
  • ImprovedOrchestrator refactored for cleaner stage progression.
v1.2.02026-03-25

Security Hardening

  • ImprovedSecurity audit: IDOR protection, CSRF tokens, CSP headers.
  • AddedCI/CD security pipeline (GitHub Actions).
  • ImprovedRLS audit across all tenant-scoped tables.
  • FixedRate limiting edge cases on concurrent job creation.
v1.1.02026-03-18

Testing Infrastructure & Light Mode

  • Added92 test cases across backend services.
  • AddedLight mode theme support.
  • AddedElevenLabs Scribe v2 real-time STT (90+ languages).
  • ImprovedSticky agent routing for conversation continuity.
  • ImprovedSettings page refactored with tabbed layout.
v1.0.02026-03-01

Initial Release

  • Added9-stage video generation pipeline (prepare → agents → init → generation → concat → audio → captions → final_merge → complete).
  • AddedVeo 3.1 (Fast/Quality) and Kling 3.0 (Standard/Pro) video models.
  • Added500+ AI personas and 1,200+ voices in 29 languages.
  • AddedPrepaid credit packs ($10–$600) with reserve/consume/release lifecycle.
  • AddedB2B REST API with JWT and API key dual-path authentication.
  • AddedWebhook notifications for job.completed and job.failed events.
  • Added9 AI chat agents with RAG support (pgvector + Gemini embeddings).
  • AddedKaraoke-style captions (.ASS format) with 5 presets and RTL support.