version updated

ChangeLog.txt

+2021-11-19 Version 1.26
+
+* WavePacket2 driver added
+
+* Faster memory handling for FreeOperators.h
+
+* Warns if HubbardU non zero in input
+
 2019-12-09 Version 1.24
 
 * VerboseEnum is an enum class

src/Version.h

 #ifndef FREE_FERMIONS_VERSION
-#define FREE_FERMIONS_VERSION "1.24"
+#define FREE_FERMIONS_VERSION "1.26"
 #endif