# ReleaseNotes.Version_1_4

## Information

- Several minor bugs fixed.
- New models:
  Modelica.Blocks.Interfaces.IntegerRealInput/IntegerRealOutput,
  Modelica.Blocks.Math.TwoInputs/TwoOutputs
  Modelica.Electrical.Analog.Ideal.IdealOpAmp3Pin,
  Modelica.Mechanics.Rotational.Move,
  Modelica.Mechanics.Translational.Move.

#### Version 1.4.1beta1 (February 12, 2001)

Adapted to Modelica 1.4

#### Version 1.3.2beta2 (June 20, 2000)

- New subpackage Modelica.Mechanics.Translational
- Changes to Modelica.Mechanics.Rotational:
  New elements:

      IdealGearR2T    Ideal gear transforming rotational in translational motion.
      Position        Forced movement of a flange with a reference angle
                                         given as input signal
      RelativeStates  Definition of relative state variables

- Changes to Modelica.SIunits:
  Introduced new types:
  type Temperature = ThermodynamicTemperature;
  types DerDensityByEnthalpy, DerDensityByPressure, DerDensityByTemperature, DerEnthalpyByPressure, DerEnergyByDensity, DerEnergyByPressure
  Attribute "final" removed from min and max values in order that these values can still be changed to narrow the allowed range of values.
  Quantity="Stress" removed from type "Stress", in order that a type "Stress" can be connected to a type "Pressure".
- Changes to Modelica.Icons:
  New icons for motors and gearboxes.
- Changes to Modelica.Blocks.Interfaces:
  Introduced a replaceable signal type into Blocks.Interfaces.RealInput/RealOutput:

      replaceable type SignalType = Real

  in order that the type of the signal of an input/output block can be changed to a physical type, for example:

      Sine sin1(outPort(redeclare type SignalType=Modelica.SIunits.Torque))

#### Version 1.3.1 (Dec. 13, 1999)

First official release of the library.

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