Release 2.1.4

The following features and bug fixes were provided for the Dogelog player of version 2.1.4:

Language Reference

• The ‘$DOT’/2 parsing and unparsing support has been removed.
  
• The ‘$ANON’/n parsing and unparsing support has been removed.
  
• The Prolog text library(tester/arrow) has been removed.
• New predicate occurs_check/2 in library(compat) introduced.
• The library(railgun) to Lean CLP v7 promoted (basic vocabulary).
• The library(railgun) to Lean CLP v9 promoted (partial consistency).
  
• New predicate sqrtrem/3 in library(math) introduced.
  
• New evaluable function isqrt/3 in library(math) introduced.

Host Interface

• New “raw” class name for colorized cells that are inactive.
• The predicate between/3 now accepts floats, but behaviour is undefined.
• The interactive debugger now supports the catch/3 meta-predicate.