Runtime_Tools Release Notes

## 1 Runtime_Tools Release Notes

This document describes the changes made to the Runtime_Tools application.

### 1.1 Runtime_Tools 1.6.1

#### 1.1.1 Improvements and New Features

- There are new BIFs `erlang:spawn_monitor/1,3`, and the new option `monitor` for `spawn_opt/2,3,4,5`.
  The `observer_backend` module has been updated to handle the new BIFs.
  Own Id: OTP-6281

### 1.2 Runtime_Tools 1.6

Added the runtime part of the Inviso tracer, see the new Inviso application for more information. This also meant adding an application callback module and an application supervisor tree for Runtime_Tools.

### 1.3 Runtime_Tools 1.5.1.1

#### 1.3.1 Improvements and New Features

- The `dbg` manual page has been updated with information about how to avoid deadlock when tracing.
  Own Id: OTP-5373 Aux Id: seq9729

### 1.4 Runtime_Tools 1.5.1

#### 1.4.1 Fixed Bugs and Malfunctions

- Linked in drivers in the Crypto, and Asn1 applications are now compiled with the `-D_THREAD_SAFE` and `-D_REENTRANT` switches on unix when the emulator has thread support enabled.
  Linked in drivers on MacOSX are not compiled with the undocumented `-lbundle1.o` switch anymore. Thanks to Sean Hinde who sent us a patch.
  Linked in driver in Crypto, and port programs in SSL, now compiles on OSF1.
  Minor `Makefile` improvements in Runtime_Tools.
  Own Id: OTP-5346

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