--- linuxsampler/trunk/ChangeLog	2019/03/10 13:34:33	3497
+++ linuxsampler/trunk/ChangeLog	2019/08/28 11:12:04	3575
@@ -1,5 +1,74 @@
 Version SVN trunk (?)
 
+  * general changes:
+    - Fixed compiler error in Pool.h.
+    - Require C++11 compiler support.
+    - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
+      for checking in configure for C++11 support (as mandatory
+      requirement) and automatically adds compiler argument if required
+      (e.g. -std=C++11).
+    - RTMath: Implemented floating point comparison methods
+      fEqual32(float,float) and fEqual64(double,double) which take the
+      expected floating point tolerances into account.
+
+  * Real-time instrument scripts:
+    - Added method ScriptVM::setExitResultEnabled() which allows to
+      explicitly enable the built-in exit() function to optionally accept
+      one function argument; the value of the passed exit() function
+      argument will then become available by calling
+      VMExecContext::exitResult() after script execution.
+    - 64 bit support for NKSP integer scripts variables (declare $foo).
+    - Variable names, function names and preprocessor condition names must start
+      with a regular character (a-z or A-Z); starting them with a digit or
+      underscore is not allowed.
+    - NKSP parser fix: equal comparison operator "=" and not equal comparison
+      operator "#" must only accept integer operands.
+    - NKSP language: Implemented support for standard units like Hertz, seconds,
+      Bel including support for metric unit prefixes; so one can now e.g.
+      conveniently use numbers in scripts like "5us" meaning "5 microseconds",
+      or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
+      "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
+    - NKSP language: Introduced "final" operator "!" which is specifically
+      intended for synthesis parameter values to denote that the synthesis
+      parameter value is intended to be the "final" value for that synthesis
+      parameter that should explicitly be used by the engine and thus causing
+      the sampler engine to ignore all other modulation sources for the same
+      synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
+      variable or formula with this new "!" operator the expression is marked as
+      being "final".
+    - NKSP script editor API: Added support for detecting standard unit tokens
+      and their potential metric prefix token.
+    - NKSP language: Added support for NKSP real number literals and
+      arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
+    - NKSP language: Added support for NKSP real number (floating point) script
+      variables (declare ~foo).
+    - NKSP language: Added support for NKSP real number (floating point) array
+      script variables (declare ?foo[]).
+    - Built-in script function "message()" accepts now real number argument as
+      well.
+    - Added built-in script function "real_to_int()" and its short hand form
+      "int()" for casting from real number to integer in NKSP scripts.
+    - Added built-in script function "int_to_real()" and its short hand form
+      "real()" for casting from integer to real number in NKSP scripts.
+    - Allow built-in exit() function to potentially accept real number type
+      argument as well.
+
+  * test cases:
+    - Fixed compiler errors in test cases.
+    - Updated README for how to compile & run test cases.
+    - Updated test case
+      MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
+      expected behaviour of the Mutex class implementation (recursive
+      mutex type).
+    - Added test cases for NKSP core language aspects and core built-in
+      functions.
+    - Fixed thread tests segfaulting on Linux.
+    - NKSP: Added real number test cases for built-in functions exit(),
+      int_to_real(), real(), real_to_int() and int(), as well as for the
+      plus, minus and negate language operators.
+
+Version 2.1.1 (27 Jul 2019)
+
   * Real-time instrument scripts:
     - Fixed behavior of built-in NKSP functions change_sustain(),
       change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
@@ -10,6 +79,11 @@
       was explicitly requested by the instrument (otherwise only on note-off).
     - Fixed compiler warnings.
     - Fixed compilation error when cross-compiling to Mac.
+    - FX Sends: Provide more useful error messages on routing problems
+      (see bug #169).
+    - LSCP doc: Be more clear describing the two distinct approaches
+      of using external vs. internal effects (see bug #169).
+    - "optional" class: Fixed comparison operators.
 
   * Gigasampler/GigaStudio format engine:
     - Format extension: If requested by instrument then don't play release