> ## Documentation Index > Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt > Use this file to discover all available pages before exploring further. # June 2026 > Documentation updates and release notes published in June 2026, organized by customer impact and product area. Updates are grouped by required customer action. Product filters show only the areas that affect your integration. See [News](/en/news/news) for impact definitions. ## Review recommended *** ### [Pix Indirect (BTG): documentation now public](/en/news/2026/june/pix-indirect-docs-public) **What changed** The complete Pix Indirect (BTG) documentation set — overview, DICT operations, transfers, QR codes, collections, refunds, MED 2.0 funds recovery, intra-PSP transfers, webhooks, and integration — plus the full Indirect Pix API reference, is now available. **Who is affected** Teams evaluating or building Pix Indirect (BTG) on Midaz — institutions connecting to BACEN's Pix infrastructure as indirect participants through BTG Pactual's BaaS offering — and anyone integrating Pix transfers, DICT, QR codes, collections, refunds, or dispute flows. **What you need to do** No migration is required. No product behavior, endpoint, or API contract changed — this is a documentation availability change only. Start with the overview to understand the indirect-participant model, then reference the individual guides and API reference as needed. ### [Accounting: Accounting Routes terminology, Overdraft scenario, and navigation update](/en/news/2026/june/accounting-console-routes-overdraft-navigation) **What changed** The Accounting module documentation now uses **Accounting Routes** as the standard term (replacing "Transaction Routing/Routes"), adds a dedicated **Overdraft** scenario, and reorganizes the module navigation, in EN, ES, and PT. **Who is affected** Anyone reading the Accounting module documentation in the Console, including teams configuring routing rules between accounts and reviewing accounting scenarios. **What you need to do** Documentation-only — no runtime behavior changed. Update internal references from "Transaction Routing/Routes" to "Accounting Routes", review the new Overdraft scenario, and re-check bookmarks against the reorganized navigation. ### [BR Bank Transfer: webhook API reference and signature documentation update](/en/news/2026/june/br-bank-transfer-webhook-api-docs) **What changed** The API reference now documents the webhook self-service API (register, rotate signing secret, list event types), and corrects the webhook signature format and the event names. **Who is affected** Teams integrating BR Bank Transfer webhooks, and anyone using the BR Bank Transfer API reference. **What you need to do** Documentation-only — no runtime behavior changed. If you validate webhook signatures or subscribe to event names, review them against the corrected documentation: the signature is now `v1,sha256=` computed over `v1:` + timestamp + body, and non-existent event names (`transfer.failed`, `transfer.cancelled`) were removed. ## No action *** ### [Fundamentals: Accounting series](/en/news/2026/june/fundamentals-accounting-series) **What changed** The **Fundamentals** tab adds an **Accounting** series covering accounting end to end: what accounting is and why it matters, assets/liabilities/equity, debits and credits, double-entry bookkeeping, chart of accounts, financial statements, journal entries, revenue and expenses, accrual vs. cash accounting, the accounting cycle, and Accounting in Lerian (bridge to Midaz). The two series are cross-linked, Mermaid diagrams were added, and duplicated content was removed. **Who is affected** Anyone wanting to understand the accounting principles behind a ledger — engineers, finance and product teams, and implementation partners working with Midaz. **What you need to do** No migration is required. Read the Accounting series for accounting fundamentals, and finish with Accounting in Lerian to connect the concepts to Midaz. ### [Fundamentals: Core Banking series](/en/news/2026/june/fundamentals-core-banking-series) **What changed** A new **Fundamentals** tab introduces the **Core Banking** series, a progressive path from concepts to a practical ledger plan: what core banking is, double-entry, building blocks (ledgers, accounts, portfolios, assets), how money moves, holders/accounts/aliases, external accounts and reconciliation, routes and fees, designing your ledger plan, and where to go next. **Who is affected** Anyone learning how Lerian's ledger works from first principles — engineers, product teams, and implementation partners onboarding to Midaz. **What you need to do** No migration is required. Read the series as foundational, conceptual material before diving into product-specific documentation. ### [BR Bank Transfer: operator guides in Lerian Console](/en/news/2026/june/br-bank-transfer-console-guides) **What changed** The BR Bank Transfer plugin now has operator documentation in Lerian Console, covering the dashboard, transfers, reconciliation, and the six settings sections, available in EN, ES, and PT. **Who is affected** Operators, administrators, and implementation teams using the BR Bank Transfer plugin through Lerian Console. **What you need to do** No migration is required. Review the new BR Bank Transfer Console documentation when onboarding operators or configuring the JD SPB integration. ### [Documentation update: product source availability](/en/news/2026/june/documentation-product-source-availability) **What changed** The documentation now describes source availability per product. Midaz and Fetcher remain source-available; other Lerian products are available to licensed customers, with repositories maintained internally. **Who is affected** Customers and teams reading Lerian documentation to understand how each product's source code is distributed. **What you need to do** No migration is required. No product behavior, licensing term, or access level changed. Update internal materials only if they describe the full portfolio as source-available. ## Product index *** | Product area | June updates | | -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Pix Indirect** | The full Pix Indirect (BTG) documentation set is now public — overview, DICT operations, transfers, QR codes, collections, refunds, MED 2.0 funds recovery, intra-PSP transfers, webhooks, and integration guides, plus the complete Indirect Pix API reference. Previously access-restricted; no product behavior changed. | | **Fundamentals** | A new Fundamentals tab introduces the Core Banking series (core banking, double-entry, building blocks, money movement, holders/accounts/aliases, external accounts and reconciliation, routes and fees, designing your ledger plan) and an Accounting series (accounting principles, debits and credits, double-entry, chart of accounts, financial statements, journal entries, revenue and expenses, accrual vs. cash, the accounting cycle, and Accounting in Lerian). The two series are cross-linked, with Mermaid diagrams added and duplicated content removed. | | **Accounting** | Accounting module documentation adopts "Accounting Routes" as the standard term, adds an Overdraft scenario, and reorganizes the module navigation (concepts, setup, and a Managing Accounting Routes subgroup), in EN, ES, and PT. | | **BR Bank Transfer** | Webhook self-service API documented in the reference; webhook signature format and event names corrected; API reference and configuration aligned with the platform. New operator guides published in Lerian Console — dashboard, transfers, reconciliation, and settings — in EN, ES, and PT. | | **General** | Documentation clarified to describe source availability per product: Midaz and Fetcher remain source-available, while other products are available to licensed customers with internally maintained repositories. |