There are a whole lot of MCC 2017 changes coming up: MCC Laws of Cricket 2017
Summary: Law Summary Paper
Do these changes apply to old matches which would modify their stats slightly?
There are a whole lot of MCC 2017 changes coming up: MCC Laws of Cricket 2017
Summary: Law Summary Paper
Do these changes apply to old matches which would modify their stats slightly?
There are potentially two changes in the new Laws which could affect match statistics:
The merging of the "handled the ball" dismissal into "obstructing the field". Given the small number of handled the ball dismissals which have happened in top-level cricket, it would be possible to re-write the score books to change all these into "obstructing the field". Frankly, all that's going to do is to change the answers to some trivia questions - e.g. "How many people have been given out obstructing the field in Test cricket?" would change from just Len Hutton to a set of eight people.
A change in scoring when byes or leg byes are scored off a no-ball. In the old Laws, this would be scored as multiple no-balls (and thus all debited to the bowler) whereas in the new Laws it would be one no ball and a separate account of byes or leg byes (thus leading to only one run being debited to the bowler). As even for international cricket, full ball-by-ball scores don't exist from before the mid-1990s, it's just not possible to do this for a lot of earlier matches. More generally, this change is similar to that made in the early 1980s when wides and no-balls were first debited to the bowler - while some analyses have been performed under the "new" way of doing things, the official scorecard stands as it was scored when the match was played.