CalendarVersion

Calendar Versioning (CalVer) version string using date-based identifiers

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Properties

Name	Type	Description
version	string	Full CalVer version string (e.g., 2026-05-03, 2026.05)
year	integer	Full 4-digit year
month	integer	Month number (1-12)
day	integer	Day of month (1-31)
modifier	string	Optional modifier (e.g., dev, alpha, beta, rc)
format	string	CalVer format used for this version
releaseDate	string	ISO 8601 release date

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/versioning-protocols/refs/heads/main/json-schema/versioning-protocols-calver-schema.json",
  "title": "CalendarVersion",
  "description": "Calendar Versioning (CalVer) version string using date-based identifiers",
  "type": "object",
  "properties": {
    "version": {
      "type": "string",
      "description": "Full CalVer version string (e.g., 2026-05-03, 2026.05)",
      "example": "2026-05-03"
    },
    "year": {
      "type": "integer",
      "minimum": 2000,
      "description": "Full 4-digit year",
      "example": 2026
    },
    "month": {
      "type": "integer",
      "minimum": 1,
      "maximum": 12,
      "description": "Month number (1-12)",
      "example": 5
    },
    "day": {
      "type": "integer",
      "minimum": 1,
      "maximum": 31,
      "description": "Day of month (1-31)",
      "example": 3
    },
    "modifier": {
      "type": "string",
      "description": "Optional modifier (e.g., dev, alpha, beta, rc)",
      "example": "rc"
    },
    "format": {
      "type": "string",
      "enum": ["YYYY.MM.DD", "YYYY-MM-DD", "YYYY.MM", "YYYY"],
      "description": "CalVer format used for this version",
      "example": "YYYY-MM-DD"
    },
    "releaseDate": {
      "type": "string",
      "format": "date",
      "description": "ISO 8601 release date",
      "example": "2026-05-03"
    }
  },
  "required": ["version", "year"]
}