updated

changelog.md

@@ -4,10 +4,12 @@ Changes in tpcclib
 This is a concise list of changes; commit messages can be found in the
 [Git repository](https://gitlab.utu.fi/vesoik/tpcclib.git).
 
-## version 0.7.7 (2021-02-03, in development)
+## version 0.7.7 (2021-02-04, in development)
 
+- Added application fit2auc.
 - Bug fix in application fit_dexp with option -1BL.
-- Started writing apps taccat and fit2auc.
+- Started writing application taccat.
+- Corrections and additions in libtpcextensions in v2. 
 - libtpcfunc in v2 supports more functions, and added mfEvalIntToInf.
 
 ## version 0.7.6 (2020-06-28)