Today I got an update for SourceTree 1.5.2, an while running the updater I got the following error message:
[SEH_AV_READ_BADPTR] ACCESS_VIOLATION (0xc0000005) at address [0x0126301d]
*** Stack Trace (x86) ***
[0x0126301d] -----
[0x0376f738] -----
[0x76c21e4b] GetProcAddress()
[0x01292942] -----
[0x012929b8] -----
[0x0122e312] -----
[0x77a29f72] RtlInitializeExceptionChain()
[0x77a29f45] RtlInitializeExceptionChain()
[0x011d0000] MODULE_BASE_ADDRESS
I had to terminate the updater process as cancelling didn't work!