This will be v2.0.0. We're going for the major version increment because the output in real-time mode intentionally changes, with what is intended to be tighter timing. The API and ABI are both unchanged from 1.9.2, but I think if the output is expected to change, that justifies the big bump

Doxyfile

@@ -31,7 +31,7 @@ PROJECT_NAME           = "Rubber Band Library"
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 1.9.2
+PROJECT_NUMBER         = 2.0.0
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put. 

meson.build

@@ -2,7 +2,7 @@
 project(
   'Rubber Band Library',
   'c', 'cpp',
-  version: '1.9.2',
+  version: '2.0.0',
   license: 'GPL-2.0-or-later',
   default_options: [
     # All Rubber Band code is actually C++98, but some compilers no
@@ -15,7 +15,7 @@ project(
   meson_version: '>= 0.53.0'
 )
 
-rubberband_dynamic_library_version = '2.1.4'
+rubberband_dynamic_library_version = '2.1.5'
 
 system = host_machine.system()
 architecture = host_machine.cpu_family()

rubberband/RubberBandStretcher.h

@@ -24,7 +24,7 @@
 #ifndef RUBBERBAND_STRETCHER_H
 #define RUBBERBAND_STRETCHER_H
     
-#define RUBBERBAND_VERSION "1.9.2"
+#define RUBBERBAND_VERSION "2.0.0"
 #define RUBBERBAND_API_MAJOR_VERSION 2
 #define RUBBERBAND_API_MINOR_VERSION 6
 

rubberband/rubberband-c.h

@@ -28,7 +28,7 @@
 extern "C" {
 #endif
 
-#define RUBBERBAND_VERSION "1.9.2"
+#define RUBBERBAND_VERSION "2.0.0"
 #define RUBBERBAND_API_MAJOR_VERSION 2
 #define RUBBERBAND_API_MINOR_VERSION 6