Changes for QuantLib 1.14:

==========================

QuantLib 1.14 includes 40 pull requests from several contributors.

The most notable changes are included below.
A detailed list of changes is available in ChangeLog.txt and at
<https://github.com/lballabio/QuantLib/milestone/10?closed=1>.

Portability
-----------

- In April 2018, Microsoft ended its support for Microsoft Visual C++
  2008. As previously announced, this release drops support for it.
- Fixed generation of RPM from QuantLib.spec (thanks to Simon Rees).
- Avoided uses of some features removed in C++17 so that the library
  can be compiled under the latest standard if needed.
- `boost::shared_ptr` and a few related classes and functions were
  imported into the new namespace `QuantLib::ext`.  This allows them to
  be conditionally replaced with their `std::` versions (see the "opt-in
  features" section below).  The default is still to use the boost
  implementation.  Client code using the boost namespace explicitly
  doesn't need to be updated.
- Fixed build and tests on FreeBSD-11 (thanks to Klaus Spanderen and
  to Mikhail Teterin for the heads-up).
- Fixed tests with the `-ffast-math` compilation flag enabled (thanks to
  Klaus Spanderen and to Jon Davies for the heads-up).

Instruments and pricing engines
-------------------------------

- Add different settlement methods for swaptions (thanks to Peter
  Caspers).
- Take into account distinct day-count conventions for different
  curves in the analytic barrier-option engine (thanks to GitHub user
  cosplay-raven).
- Extract the correct constant coefficients to use in
  finite-difference vanilla-option engine when using a time-dependent
  Black-Scholes process (thanks to GitHub user Grant6899 for the
  analysis).

Cash flows and interest rates
-----------------------------

- Added Bibor and THBFIX indices (thanks to Matthias Lungwitz).

Models
------

- Added a hook for using a custom smile model in the Markov functional
  model (thanks to Peter Caspers).
- Added a base class `CalibrationHelperBase` to the hierarchy of
  calibration helpers in order to allow for helpers not using the
  Black model.
- Return underlying dynamics from Black-Karasinski model (thanks to
  Fanis Antoniou).

Finite differences
------------------

- Added higher-order spatial operators (thanks to Klaus Spanderen).
- Added TR-BDF2 finite-difference scheme (thanks to Klaus Spanderen).

Term structures
---------------

- Allow swap helpers to specify end-of-month convention (thanks to
  Matthias Lungwitz).

Date/time
---------

- Prevented division by zero in Actual/365 Canadian day counter
  (thanks to Ioannis Rigopoulos for the heads-up).
- Added Children's Day to the list of Romanian holidays (thanks to
  Matthias Lungwitz).
- Added new calendar for Thailand (thanks to Matthias Lungwitz).
- Added 30/360 German day counter (thanks to Peter Caspers and Alexey
  Indiryakov).

Math
----

- Fixed bug in convex-monotone interpolation (thanks to Peter Caspers
  for the fix and to Tom Anderson for finding the bug).

New opt-in features
-------------------

- It is now possible to use `std::shared_ptr` and its related classes
  instead of `boost::shared_ptr`.  Note that, unlike its boost
  counterpart, `std::shared_ptr` doesn't check for null pointers before
  access; this can lead to crashes.  The feature can be enabled by
  uncommenting the `QL_USE_STD_SHARED_PTR` macro in `ql/userconfig.hpp` on
  Visual C++ or by passing the `--enable-std-pointers` to `./configure` on
  other systems.  This requires using at least the C++11 standard
  during compilation.
- It is now possible to use `std::unique_ptr` instead of `std::auto_ptr`;
  this makes it possible to compile the library in strict C++17 mode
  and to avoid deprecation warnings in C++11 and C++14 mode.  The
  feature can be enabled by uncommenting the `QL_USE_STD_UNIQUE_PTR`
  macro in `ql/userconfig.hpp` on Visual C++ or by passing the
  `--enable-std-unique-ptr` to `./configure` on other systems.

Thanks go also to Sam Danbury, Barry Devlin, Roland Kapl, and GitHub
user todatamining for smaller fixes, enhancements, and bug reports.

QuantLib release 1.13.

QuantLib release 1.12.1.

Update history and changelog.

QuantLib release 1.11.

QuantLib 1.10.1 release.

This is a bug-fix release for QuantLib 1.10.

QuantLib release 1.10.

Update changelog and news.

Update ChangeLog and news.

Auto-link required Boost libraries.