## 1 Percept Release Notes

This document describes the changes made to the Percept application.

### 1.1 Percept 0.8.2

#### 1.1.1 Improvements and New Features

- Extensions to egd:color/1 for using atoms as color definition in addition to rgb triplets.
  Own Id: OTP-7975

### 1.2 Percept 0.8.1

#### 1.2.1 Improvements and New Features

- egd now supports encapsulated postscript output format.
  Own Id: OTP-7923

### 1.3 Percept 0.8

#### 1.3.1 Fixed Bugs and Malfunctions

- A problem with options list to percept causing some options to be disregarded unintentionally. This has now been fixed.
  An error in percept_analyzer caused calculation of standard deviation to be incorrect. This has now been corrected.
  Own Id: OTP-7693

#### 1.3.2 Improvements and New Features

- Updated css for percept server for enhanced viewing.
  Increased performance of egd render.
  Several graph errors could occur when compacting data to decrease graph rendering time causing incorrect scalability numbers. These errors have now been fixed.
  Increased viewing width for graphs. The viewing width is now dependent on client screen resolution.
  Own Id: OTP-7696

### 1.4 Percept 0.7.3

#### 1.4.1 Fixed Bugs and Malfunctions

- External pids caused the webserver to crash. This has now been fixed.
  Own Id: OTP-7515 Aux Id: seq11004
- Fixed a timestamp problem where some events could be sent out of order. Minor fixes to presentation of data.
  Own Id: OTP-7544 Aux Id: otp-7442

#### 1.4.2 Improvements and New Features

- Performance enhancement for the egd render engine (Thanks to Magnus Thoäng).
  Own Id: OTP-7616

### 1.5 Percept 0.7.2

#### 1.5.1 Fixed Bugs and Malfunctions

- Calling egd:destroy/1 did not properly remove the process holding the image.
  Synchronous calls done via the egd interface could errornous receive messages not intended for egd. Messages are now tagged in such a way so this should not occur.
  Own Id: OTP-7336

### 1.6 Percept 0.7.1

#### 1.6.1 Fixed Bugs and Malfunctions

- Fixed out of bounds rendering problem in egd which could cause the rendering process to crash.
  Own Id: OTP-7215

### 1.7 Percept 0.7

#### 1.7.1 Improvements and New Features

- Percept no longer depends on external c-libraries. The graphical rendering is now done via erlang code.
  Own Id: OTP-7162

### 1.8 Percept 0.6.2

#### 1.8.1 Improvements and New Features

- A new module, percept_profile, can now be used to collect profiling data even if the percept application is not installed. This should help profiling erlang application on target machines without libgd installed.
  Own Id: OTP-7126

### 1.9 Percept 0.5.0

#### 1.9.1 First Release

- First Release.
  Own Id: OTP-6783

percept 0.8.2
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