Original Release note (AVR Studio 4.18 register required)
Welcome to AVR Studio 4.18 Service Pack 2 (02/2010) Part support The following new parts have been added to AVR Studio since 4.18 SP1: - AT90PWM1, ATtiny40 programming support. New Features QT600 CLI (QT600.exe, Command Line Interface) with TPI support STK600 CLI (STK600.exe) added TPI support AVRISPmkII CLI (STK500.exe) added TPI support Bug Fixes 11075 - Setting of STK600 Aref with max resolution is tricky 10765 - Cosmetic errors in the tiny20 register descriptions 10764 - Some registers missing from tiny20 I/O view 10724 - avrone.exe does not handle - J 10763 - Can't read tiny20 Oscillator Calibration Byte with STK600 11128 - STK500.exe CLI -ae option not working 11218 - Update online help for stk500.exe with XMEGA commands 11168 - XMEGA RTC clock source in I/O-view confusing 11176 - ATtiny5 has wrong signature 11207 - STK500 Firmware issue with latest AVR Studio 10883 - AT90PWM316 Clock Fuses selection is not right 11052 - ATmega88PA is not in the list of supported parts for the STK500 11265 - Bugs in XML part description files ATmega162 and AT90CAN128 11030 - JTAGICE mkII autodetect crash with XMEGA 11131 - STK500 forced firmware downgrade 10641 - AVR ONE! upgrade crashes 10558 - Starting AVRDragon debugger on ATmega128 starts endless loop 10926 - AVR ONE! incorrect help version 10912 - AVR ONE! unable to connect to mega168A in programming dialog 10624 - Error loading debug code on Xmega device with AVR Dragon 10524 - 64-bit watch values >= 2**32 become 0xffffffff 10854 - Vista issues opening COFF files in AVR Studio 4.18 10235 - Scomm.dll not found during installation 11206 - ISP and JTAG Fuse should not be writeable when using QT600 Programmer 10886 - Channel Control Register for ADC in XMEGA16D4 11298 - Loading an ELF file in programming dialog crashes Studio Known Issues 11160 - ATmega8 problem with Waveform Generation Mode bits -> AVR Tools-Simulator-Known IssuesNote Windows 95 is no longer supported by AVR Studio. The most recent version that supported Windows 95 was AVR Studio 4.12 SP3. Windows 98 is no longer supported by AVR Studio. The most recent version that supported Windows 98 was AVR Studio 4.16 SP1.