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libquantum 1.0.0:
- Fixed quantum_gate1 to work properly with sorted regs
- Fixed several bugs in quantum_rk4a

libquantum 0.9.1:
- Added fourth-order Runge-Kutta time evolution
- Fixed error in quantum_measure() that caused some register values
  never being measured
- Improved error handling
- Updated license and FSF contact data
- Added arbitrary two-qubit gate
- New function two print entire time evolution operator
- Fixed Makefile syntax

libquantum 0.2.4:
- Fixed a bug in the wrapper for the density operator formalism
  that caused a compiler error when using some gates

libquantum 0.2.3:
- Added density operator formalism
- Added functions for dot product and purity
- Usage of fabsf led to trouble on Solaris, replaced by fabs
- Qureg initialization does not seed RNG anymore
- Fixed some potential installation problems

libquantum 0.2.2:
- Added quantum object code interface
- Additional configure options for better portability
- Added Kronecker product function
- Some minor fixes

libquantum 0.2.1:
- Completed GNU/Hurd and FreeBSD ports
- Added unbounded toffoli gate
- Changed hashing method to linear probing (breaks backward
  compatibility)
- Optimized quantum_gate1 and gates using quantum_cexp
- Added a bit measurement function that does not remove the
  measured bit
- Corrected qft, added qft_inv and adjusted shor
- Corrected the implementation of the Walsh-Hadamard transform
- Supplied version information

libquantum 0.2.0:
- Added Quantum Error Correction
- Included an Implementation of Grover's algorithm
- Added some inverse functions and conditional phase kick
- Improved speed of the decoherence simulation
- Fixed a memory leak in the quantum register deletion routine
- Fixed a segfault in the sigma functions
- Fixed a typo in the configure script that could result in a build
  failure

libquantum 0.1.1:
- Completed rotation gates (quantum_r_z)
- Fixed a build problem with the demo program
- Fixed some header inconsistencies

libquantum 0.1.0:
initial public release