Changelog

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[v0.6.1] - 2026-06-18

Fixed

  • Exmbus.Dll.Wmbus no longer changes options length and crc while parsing.

Added

  • Exmbus.Util.rekey_ell can now also change identification_no of the DLL.
  • Exmbus.Parser.Apl.FormatFrame now has a to_header_bytes/1 from_header_bytes/1.

[v0.6.0] - 2026-06-18

Fixed

  • Crashes when unsupported VIFEs were used.
  • Crash when "record error" VIFE was not the first VIFE of a record.

Added

  • Support for more orthogonal VIFEs ("value during limit exceed", "date(/time) of")
  • Better handling of (still unsupported) orthogonal extension table (0xFC) to avoid crashing.

Changed

  • Rewrite internals around data record parsing to allow access to a (read-only) parser context.

[v0.5.0] - 2026-03-25

Changed

  • BREAKING CHANGE: VIFEs tagged with :limit_exceeded is now tagged with :limit_exceed instead.

Added

  • Support for "Limit Exceed" VIFEs.

Fixed

  • Crash when a compact frame was given, but no format_frame_fn was provided in options.
  • Crash when handler returned unexpected value (e.g. not next or halt) Now adds an error and halts.

[v0.4.0]

Changed

[v0.3.3]

Fixed

  • Fixed bug in type A decoding that caused 0xF digits to crash the parser in some cases.

[v0.3.2]

Added

  • AFL MAC verification. Works for unfragmented AFLs.

[v0.3.1]

Added

  • Authentication and Fragmentation layer (AFL) support added
    • fragmented messages not supported
    • Currently no MAC verification is done
  • Security Profile 7 support added (ephemeral keys KDF)
  • ELL CI 0x8E support added

[v0.3.0]

Changed

  • BREAKING: Making identification numbers strings instead of integers. This allows us to represent wildcard Fs at any position.
  • Parsing of the lower layers (DLL and TPL) have been made less brittle and will in more cases register errors in the context instead of raising an exception.
  • BREAKING: Device value in DLL and TPL have been changed from an atom to a struct of type Exmbus.Parser.Tpl.Device

Added

  • Support for tariff related VIFE in 0xFD table E011 00NN.
  • Support for VIFE in 0xFD: E110 0110 State of parameter activation.
  • Support for VIF E001 1101 (Standard conform data content)
  • Test for LAN-WMBUS-G2-LDS/LDP.
  • Support for expansion of Compact Profile with Register Numbers (Orthogonal VIFE 0x1E)

[v0.2.0]

Open-sourced