I'm deploying an application on Mac OS X written in Qt4. Under Qt 4.3.x all works fine, but when I try to use Qt 4.4.3 application crashes:

Qt Code: 
  1. $ ./QNapi
  2. 2009-02-15 23:45:50.435 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1d2e0 of class NSCFString autoreleased with no pool in place - just leaking
  3. Stack: (0x95addadf 0x959ea1f2 0x9221b1f1 0x9221b25d 0x9221b2b1 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  4. 2009-02-15 23:45:50.436 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1e5a0 of class NSCFString autoreleased with no pool in place - just leaking
  5. Stack: (0x95addadf 0x959ea1f2 0x959f564a 0x9221b27d 0x9221b2b1 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  6. 2009-02-15 23:45:50.436 QNapi[55424:10b] *** -[NSCFBoolean length]: unrecognized selector sent to instance 0xa02a8400
  7. 2009-02-15 23:45:50.438 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1eaa0 of class NSCFString autoreleased with no pool in place - just leaking
  8. Stack: (0x95addadf 0x959ea1f2 0x9221b1f1 0x9221b25d 0x9221b2f1 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  9. 2009-02-15 23:45:50.439 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1e820 of class NSCFString autoreleased with no pool in place - just leaking
  10. Stack: (0x95addadf 0x959ea1f2 0x959f564a 0x9221b27d 0x9221b2f1 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  11. 2009-02-15 23:45:50.439 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1e850 of class NSCFString autoreleased with no pool in place - just leaking
  12. Stack: (0x95addadf 0x959ea1f2 0x959f564a 0x9221b312 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  13. 2009-02-15 23:45:50.439 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1d0b0 of class NSException autoreleased with no pool in place - just leaking
  14. Stack: (0x95addadf 0x959ea1f2 0x9221b342 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  15. 2009-02-15 23:45:50.440 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1e2b0 of class _NSCallStackArray autoreleased with no pool in place - just leaking
  16. Stack: (0x95addadf 0x959ea1f2 0x95a44078 0x9221414b 0x910ede3b 0x9221b34a 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  17. 2009-02-15 23:45:50.441 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1ef30 of class NSCFString autoreleased with no pool in place - just leaking
  18. Stack: (0x95addadf 0x959ea1f2 0x959f564a 0x922140ce 0x910ede3b 0x9221b34a 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  19. 2009-02-15 23:45:50.441 QNapi[55424:10b] *** _NSAutoreleaseNoPool(): Object 0xc1ee50 of class NSCFData autoreleased with no pool in place - just leaking
  20. Stack: (0x95addadf 0x959ea1f2 0x959fe8c5 0x959fe4a1 0x922140e2 0x910ede3b 0x9221b34a 0x9221994c 0x92219a12 0x921b1b57 0x724e4b 0xd1807 0x80c43 0x80e4b 0x2c020 0x28baf 0x669a 0x5d52 0x5c79)
  21. 2009-02-15 23:45:50.441 QNapi[55424:10b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSCFBoolean length]: unrecognized selector sent to instance 0xa02a8400'
  22. 2009-02-15 23:45:50.443 QNapi[55424:10b] Stack: (
  23.     2451652939,
  24.     2433670715,
  25.     2451682122,
  26.     2451675468,
  27.     2451675666,
  28.     2451250007,
  29.     7491147,
  30.     858119,
  31.     527427,
  32.     527947,
  33.     180256,
  34.     166831,
  35.     26266,
  36.     23890,
  37.     23673
  38. )
  39. Trace/BPT trap
  40. $
To copy to clipboard, switch view to plain text mode 

I've tried both Qt dmg installer and own static Qt compilation with the same result. Any ideas?