1.4.1

Version 1.4.1 adds the following enhancements/fixes:

• supports references to value sets in other libraries
• fixes bug that caused all records to be retrieved when a value set reference couldn't be resolved

1.3.5

Version 1.3.5 adds the following enhancements/fixes:

• supports references to value sets in other libraries
• fixes bug that caused all records to be retrieved when a value set reference couldn't be resolved

1.4.0

CQL Execution 1.4.0 is the first release supporting the CQL Release 1 STU4 specification. It contains the following changes:

• Only DateTime has a timezone offset (not Date or Time)
• Seconds and milliseconds are now captured as a decimal in the time representation (e.g. hh:mm:ss.fff)
• Support for ConvertQuantity and CanConvertQuantity
• Implement size and fix width for Quantity
• Normalize whitespace when determining string equivalence
• Detect underflow/overflow for arithmetic operators
• Update expand semantics based on changes/clarification in CQL 1.4
• Add support for same or before and same or after for intervals
• Replace "Population" context with "Unspecified" context
• Fix various bugs (see commits for details)

1.3.4

CQL Execution version 1.3.4 introduces the following changes since 1.3.3:

• Adds Concept, Date, and CodeSystem to the module exports
• Fixes issue processing default value of Code parameters
  • Prior to this fix, default values for Code parameters were ignored and treated as null

1.3.3

CQL Execution version 1.3.3 introduces the following changes since 1.3.2:

• Support for new operators:
  • same as (for intervals)
  • Matches
  • SplitOnMatches
  • ToRatio
  • ConvertsTo[X] (all defined ConvertsTo operators)
• Adds min/max values for Date
• Changes min/max DateTime to consider timezone offset
• Handles edge cases when uncertainties are built on codes (due to choices in model)
• Other minor bug fixes

1.3.2

CQL Execution version 1.3.2 introduces the following changes since 1.3.1:

• Support for interval expand and collapse with the per argument
• CalculateAgeAt operations will use date calculation when the input argument is a date
• Unimplemented operations SplitOnMatches and ConvertsTo* are stubbed as subclasses of UnimplementedExpression so an error is thrown if users attempt to use them

1.3.1

Version 1.3.1 contains the following fixes:

• Supports converting DateTime to Date
• Fixes Date to DateTime conversion to populate time components to 0 for fully specified dates

1.3.0

Version 1.3.0 contains necessary changes to align with the CQL 1.3.0 (STU 3) specification.

See: http://cql.hl7.org/STU3/index.html

1.2.3

Version 1.2.3 introduces the following changes:

• Fixes accidental mutation of intervals in the collapse function (#31)

1.2.2

Version 1.2.2 introduces the following changes:

• improve alignment to CQL 1.2 (#22)
  • throw IncompatibleTypes exception when comparing incompatible types
  • throw exception when parsing DateTime strings with invalid formats
  • support offset 'Z' when parsing DateTime strings
  • fix incorrect string format when converting DateTime to string
  • update ToDecimal, ToInteger, and ToQuantity to better align to spec
• improve support for quantities (#25)
  • allow null quantity values
  • throw an exception on invalid (non-decimal, non-null) quantity values
• fix object equality to better align w/ specification (#28)
• fix an error potentially overwriting results when executing on multiple patients (#23)
• fix incorrect MIN_TIME_VALUE assignment (#24)
• fix bug detecting timezone separators in DateTime strings (#26)