Release Notes

Notable ExactEDI Engine releases. Format follows Keep a Changelog; versions follow Semantic Versioning.

For SNIP coverage by release, see the validation roadmap and the validation coverage table in Getting Started.

[1.0.0-beta.4] — 2026-05-21

Second design-partner beta. The headline is a major expansion of validation — §2.3.1 loop-aware structural checks now span ten transaction types, joined by HL-hierarchy, transaction-structure, and 835/837 monetary-balancing checks — plus a .NET async API and a multi-platform SDK packaging pipeline that builds native libraries, Python wheels, and the NuGet package on every supported OS.

Added

• Tier-2 loop-aware structural validation across ten transaction types: 837P, 835, 270, 271, 276, 277, 277CA, 278, 820, and 999. Validates loop nesting, trigger segments, segment placement, and repeat-count caps against the §2.3.1 implementation-guide loop structure. The LoopValidator is recognizer-driven and generic across transaction types.
• HL-hierarchy and transaction-structure validation — structural integrity of the X12 Hierarchical Level chain (HL01–HL04) plus required- and recommended-segment checks per transaction type. The HlValidator and TransactionValidator are now wired into the validation engine.
• Monetary balancing — 835 BPR02-vs-CLP04 payment sums and 837 CLM02-vs-SV1 line-charge sums are reconciled, emitting TX_FINANCIAL_IMBALANCE when totals disagree.
• .NET async API — AnalyzeFileAsync, AnalyzeStringAsync, AnalyzeMemoryAsync, ValidateFileAsync, and AnalyzeFileStreamingAsync, each returning Task<T> and honoring a CancellationToken. See the C# / .NET SDK guide.
• The C ABI — and the .NET binding — now expose all 14 transaction types.
• X12 mapping reference documentation, including Validation Diagnostics, a plain-English reference for all 35 diagnostic codes.

Changed

• The .NET managed assembly now ships as ExactEDI.Sdk.dll. The NuGet package id (ExactEDI) and the ExactEDI namespace are unchanged, so consuming code is unaffected.

Fixed

• Patched a System.Text.Json security advisory in the .NET binding.
• Corrected 277CA 2000D HL03 (PT, not 23) and an 835 N1/NM1 spec violation surfaced by the new validation.
• The SDK packaging pipeline now builds native libraries (Linux, Windows, macOS), Python wheels, and the NuGet package across all supported platforms.

Upgrade notes

• Install the beta.4 wheel or NuGet package from your customer portal. The Getting Started guide uses 1.0.0b4 wheels and documents the expanded validate output.
• If you filter diagnostics programmatically, review the diagnostics reference — new loop-structure and financial-balancing codes ship with this release.

Earlier betas

Full engine changelog history ships in the portal tarball as CHANGELOG.md.