1.3

Notable changes for QuantLib 1.3

Portability

• Enabled g++ compilation in C++11 mode.
• Added VC++11 projects (thanks to Edouard Tallent).
• Added x64 target to VC++10 and VC++11 projects (thanks to Johannes
  Göttker-Schnetmann).
• Removed most level-4 warnings in VC++ (thanks to Michael Sharpe).
• Removed warnings in VC++ when compiling for the x64 platform (thanks
  to Johannes Göttker-Schnetmann).

Date/time

• Fixed holiday for Japanese calendar (thanks to Sebastien Gurrieri).
• Added Epiphany (introduced in 2011) to Polish calendar (thanks to
  katastrofa).
• Updated South-Korean calendar for 2013 (thanks to Faycal El Karaa).
• Updated Chinese calendar for 2012 (thanks to Cheng Li).
• Updated calendar for 2013 for China, Hong Kong, India, Indonesia,
  Singapore, Taiwan and Turkey.
• Fixed a few Mexican holidays.
• Prevented out-of-bound access to degenerate schedule.

Instruments

• Finite-difference Bermudan swaption engines for the G2++ and the
  Hull-White models (thanks to Klaus Spanderen).
• Added analytic Heston-Hull-White pricing engine for vanilla option
  using the H1HW approximation (thanks to Klaus Spanderen).
• Managed underlying start delay in Jamshidian swaption engine (thanks
  to Peter Caspers).

Models

• Added calibration to GARCH model (thanks to Slava Mazur).
• Fixed forward-looking bias in Garch11 calculation (thanks to Slava
  Mazur).

Cash flows

• Use correct default for evaluation date in a few CashFlows methods
  (thanks to Peter Caspers).
• Yield-based NPV calculation now uses coupon reference dates; this
  fixes small discrepancies when using day counters such as ISMA
  act/act (thanks to Henri Gough and Nick Glass).
• Fixed start and end dates for convexity adjustment of in-arrears
  floating-rate coupon (thanks to Peter Caspers).

Indexes

• Added inspector for the joint calendar used by Libor indexes.
• Added method to clone a swap index with a different discount curve
  (thanks to Peter Caspers).

Term structures

• Fixed degenerate case for ABCD volatility (thanks to Peter Caspers).
• Relaxed extrapolation check for default-probability curves. When
  calculating default probabilities between two dates or times, allow
  the first to precede the reference date. This effectively assumes
  that the default probability before the reference is null, and helps
  in cases where a coupon protection extends a couple of days before
  the reference due to adjustments (for instance, when the protection
  starts on a Saturday and the reference is rolled to the following
  Monday).
• Pass correct ATM forward rate to smile section of SwaptionVolCube2
  (thanks to Peter Caspers).
• Added exogenous discount to OptionletStripper1 (thanks to Peter
  Caspers).

Math

• Added Sobol brownian-bridge random sequence generator (thanks to
  Klaus Spanderen).
• Added Richardson-extrapolation utility for numerical methods (thanks
  to Klaus Spanderen).
• Added differential evolution optimizer (thanks to Ralph Schreyer and
  Mateusz Kapturski).
• Added special case to close()/close_enough() when either value is 0;
  previously, they would always return false which could be surprising
  (thanks to Simon Shakeshaft for the fix).
• Fixed Gamma distribution tail (thanks to Ian Qsong).
• Ensure that the last function call inside a solver is passed the
  root (thanks to Francis Duffy).
• Implemented Lagrange boundary condition for cubic interpolation
  (thanks to Peter Caspers).
• Increased precision in tail of West's bivariate cumulative normal
  (thanks to Fabien Le Floc'h).
• Improved calibration of SABR interpolation by allowing different
  starting points (thanks to Peter Caspers).
• Moved FFT and autocovariance implementations from experimental
  folder to core library.

Finite differences

• Added time-dependent Dirichlet boundary condition (thanks to Peter
  Caspers).

Utilities

• Implicit conversions of shared_ptr to bool are now explicit; they
  have been removed in C++11 (thanks to Scott Condit).

Experimental folder

The ql/experimental folder contains code which is still not fully integrated with the library or even fully tested, but is released in order to get user feedback. Experimental classes are considered unstable; their interfaces might change in future releases.

New contributions for this release were:

• Two-asset barrier option and related engine (thanks to
  IMAFA/Polytech'Nice students Qingxiao Wang and Nabila Barkati).
• ODE solver (thanks to Peter Caspers).
• Markov functional model (thanks to Peter Caspers).