Increment YR_ARENA_FILE_VERSION.
With the introduction of new opcodes for the YARA virtual machine (OP_DEFINED, OP_COUNT_IN, etc), rules compiled with version 4.2.x can't be loaded by version 4.1.x.
@@ -37,7 +37,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define EOL ((size_t) -1)
-#define YR_ARENA_FILE_VERSION 18
+#define YR_ARENA_FILE_VERSION 19
#define YR_ARENA_NULL_REF \
(YR_ARENA_REF) { UINT32_MAX, UINT32_MAX }
