Release 1.19.0

[AngusHsu]

1.19.0 (2026-10-12)

Documentation

• Contributor guide (#581): the 120-column rule in
  AGENTS.md now applies to new and changed lines, and older long lines are not swept. A URL may also stay whole as a
  single string literal, such as an entry of METADATA.links. Code and behavior are unchanged.
• Failure reasons (#578): the country template's checklist
  now asks for a checksum group in METADATA.regexp whenever checksum() returns the check digit or character, so
  failure_reason() can report checksum_mismatch; a bool checksum() needs no group. The BGR Unified
  Identification Code note in docs/FAILURE_REASONS.md now says that a 13-digit code whose first nine digits fail the
  9-digit check but whose 13th digit is correct stays validation_failed, because the group covers only the 13th
  digit. Validity and diagnostics are unchanged.

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This discussion was created from the release Release 1.19.0.