# Change Log

## (unreleased)

Features:

* unique IDs for all variables (user-defined variables are renamed)
* support for hiding predicates from completed output by using `#show` statements
* more simplification rules with `--simplify`
* command-line option `--parentheses` to fully parenthesize

Bug Fixes:

* adds missing error message when attempting to read inaccessible file
* removes unnecessary parentheses after simplification
* fixes incorrect simplification with binary operations in arguments

## 0.1.5 (2017-05-04)

Bug Fixes:

* fixes lost signs with negated 0-ary predicates

## 0.1.4 (2017-04-12)

Features:

* completion of input programs (optional)
* command-line option `--complete` to turn on completion

## 0.1.3 (2017-03-30)

Features:

* support for anonymous variables

Bug Fixes:

* fixes incorrectly simplified rules with comparisons
* fixes misleading error message concerning negated, unsupported body literals

## 0.1.2 (2017-03-23)

Features:

* simplification of output formulas (optional)
* command-line option `--simplify` to turn on simplification

Bug Fixes:

* fixes incorrectly translated choice rules with multiple elements in the head aggregate

Internal:

* explicit syntax tree representation for first-order formulas

## 0.1.1 (2017-03-06)

Features:

* support for choice rules (without guards)

## 0.1.0 (2016-11-24)

Features:

* initial support for translating rules in *Essential Gringo* (excluding aggregates) to first-order logic formulas
* command-line option `--color` to autodetect, enable, or disable color output
* command-line option `--log-level` to control which status messages should be shown