v0.2.0

Added

• DBF.with_open/2,3 for callback-scoped reads with automatic resource cleanup.
• An opt-in numeric: :exact policy that returns integers for scale-zero numeric fields and Decimal values for positive scales while preserving floats by default.
• Explicit encoding and encoding_errors options with built-in Windows-1251/1252 decoding and strict, replacement, or raw-byte handling.
• Documented evidence-based support levels for the available DBF variants.
• Verified fixture-backed FoxBase and dBASE III support, including complete zipcode CSV comparison and representative DBT record oracles.

Changed

• Field decoder selection is now compiled from profile capabilities with schema metadata, keeping textual and binary representations distinct before value decoding.
• The minimum supported Elixir version is now 1.15.
• The OTP application and Hex package names were corrected to dbf_ex.

Fixed

• Opening now validates options before file access and returns contextual errors for malformed or truncated structures and missing required memos.
• Table and memo resources are acquired transactionally, cleaned up after failed opens, and closed idempotently.
• Corrected public type specifications for database errors, memo handles, and memo-file opening results.
• Duplicate decoded field names now fail schema parsing instead of silently overwriting record values.
• Legacy blank values now have documented per-type results; date, logical, float, and numeric parsing no longer uses exceptions for ordinary invalid input, and numeric suffix junk is no longer accepted as a partial value.
• Field names, character values, and textual DBT memos now use one language-driver-aware text policy while binary and structural bytes remain untouched.
• Legacy profiles no longer accidentally decode unsupported Visual FoxPro integer, currency, variable-width, or binary field kinds.
• FoxBase exact numerics now preserve decimal values when its compact descriptors omit scale metadata.
• Record access now consistently rejects invalid indexes and returns contextual errors for short reads, malformed values, and unknown record markers; enumeration stops after emitting a record error.
• dBASE III DBT memos now support multi-block values and reject malformed pointers, inconsistent headers, out-of-range blocks, and missing terminators.
• dBASE IV DBT memos now honor declared block sizes and total lengths, support multi-block values, recognize field terminators, and reject invalid signatures, pointers, and truncated blocks.
• Required memo companions now reject empty, truncated, and detectably mismatched DBT files during opening, including explicitly supplied paths.