Hi,
just release IDE 1.5.8, here the changelog:
ARDUINO 1.5.8 BETA - 2014.10.01
[ide]
* Find/Replace over multiple tabs (Erwin Ried, Fulvio Ieva)
* Fix wrong "Replace" behavior with empty "Find" field (Fulvio Ieva)
* A lot of command-line improvements (Matthijs Kooijman)
* Cursor is not moved when invoking autoformat
[libraries]
* SPI: added transaction API (Paul Stoffregen)
https://github.com/arduino/Arduino/pull/2223
https://groups.google.com/a/arduino.cc/forum/#!msg/developers/TuZLfjeZjDI/6deNjw3Y9m4J
* FileIO bridge: fixed wrong return value in File::size() for size >32768
* Updated Temboo to latest version
* Updates/Fix to various examples
[core]
* sam: "new" and "delete" do not bring in 50Kb of stdclib anymore
* Correct implementation of gcc specific internal functions (__cxa_guard_*) (Alexey Guseynov)
* Fix for upload problems on Leonardo (and derivative boards based on mega32u4)
* Small improvements on String class (Matthijs Kooijman)
* Fixed size of available flash for mega2560 boards (Leonardo Milani, Arnav Gupta)
* sam: removed useless empty digitalPinToTimer(..) macro stub (Bill Perry)
The following changes are included also in the Arduino IDE 1.0.6:
[core]
* avr: Added replacement stub for cstdlib atexit() funciton (Christopher Andrews)