Stable releases are available for download from the download section of the project's SourceForge page.

The latest (and previous) development versions are accessed through the project's Subversion repository, which is located at https://openblt.svn.sourceforge.net/svnroot/openblt. Read-only access is granted to everyone. Development versions are found in the ./trunk directory.

OpenBLT version 0.94.00 (4 Mar 2012)

• Added support for the LM3S ARM CortexM3 family
• Added support for IAR Embedded Workbench, GCC and Crossworks on LM3S targets
• Added demos for the Texas Instruments EK-LM3S6965 board
• Added demos for the Texas Instruments EK-LM3S8962 board
• Added support for the EFM32 ARM CortexM3 family
• Added support for IAR Embedded Workbench, GCC and Crossworks on EFM32 targets
• Added demos for the Olimex EM-32G880F128-STK board
• Fixed bug where the checksum was incorrectly programmed during a programming sequence that doesn't include data for the bootblock
• Fixed bug in UsbTransmitPipeBulkIN where data was incorrectly copied twice to the endpoint's RAM

OpenBLT version 0.93.00 (17 Dec 2011)

• Added support for bootloading over USB on STM32 targets
• Added support for IAR Embedded Workbench on STM32 targets
• Added demos for the Olimex STM32-H103 board

OpenBLT version 0.92.00 (2 Dec 2011)

• Added an Eclipse demo for the Olimex STM32P103 board
• Added support for additional NVM driver in LPC-L2294 Demo's allowing operations on the 2MB external Intel C3 flash
• Fixed data type of NvmEraseHook return code (blt_bool should have been blt_int8u)
• Corrected the names of some return values for the NVM hooks (BTL_NVM_xxx to BLT_NVM_xxx)
• Fixed problem with incorrect xcpInfo.mta value by changing the GCC/Crossworks linker optimazation from -Os to -O1 (LPC2000)

OpenBLT version 0.91.00 (26 Nov 2011)

• Added support for the STM32 ARM CortexM3 family with a demo for the Olimex STM32P103 board and Crossworks compiler
• Added support for the GCC compiler on STM32 targets
• Bugfix in Init() for LPC2000 where the system clock speed was compared in the wrong units (kHz vs. MHz)
• Added support for Rowley Crossworks for LPC2000 target
• Improvement where the checksum is only written if necessary
• Configured icon for Microboot utility

OpenBLT version 0.90.00 (12 Nov 2011)

• Initial release with support for LPC2000 with Olimex LPC-L2294/GCC demo