Quote from: shorena on January 06, 2016, 12:11:08 PM

@Realpra thanks for the answers.

Id also argue that the recent attack with high S signatures was a major concern (quick fixed in 0.11.1) and IIRC seg wit is planed as hard fork in the long run.

Np

Thank you for the interest.

Only if you had logic relying on pre-calculated hashes.

Since at the moment and historically TX hashes are never expected to be un-malleable any good solution should have looked for the expected outputs instead of a specific TX hash.
Outputs are signed and 100% reliable.

The only legitimate cases I know were TX chaining and the lightning network which benefits from virtual transactions with a known specific hash.
At any rate I'm not against fixing that IF done nicely, but it doesn't solve scaling.