2.6.1

fix major bug with unflushed stdio

2.6

output checking added.  Programs can be be stopped mid-execution with…

2.5

 fix major bug introduced in 2.4 for case where executable already ex…

2.4

improve performance for programs making large numbers of calls to printf

fix bugs stopping use on OSX

2.3

fix bug on OSX with handling of Clang version

stop user definitions of functions from unistd.h, e.g close, breaking dcc
reduce chance of zombie valgrind being left behind
report properly uninitialized exit status

2.2

tweak handling of embedded tarfiles to work on Windows Subsystem for …

2.1

Handle absence of valgrind gracefully.

Move valgrind from recommended to required in debian package.

2.0

run 2 sanitizers simultaneously to get both address & unitialized var…

1.11

Compatibility with clang versions < 7.0 improved.

Valgrind malloc-fill and free-fill used, to print better message regarding variable with unitialized values.
Several new explanations added.

1.10

do a better job of printing struct fields after a runtime error