Will and would modal verb differences

Question

1). A majority of voters approved changes to Russia's constitution that would allow president valdmir putin to hold power until 2036

2). A majority of voters approved changes to Russia's constitution that will allow president valdmir putin to hold power until 2036

Which of the following sentences is correct?? If both are correct, What is the difference in meaning between these two sentences???

I know as the sentence is in past tense we should use "would". But as the constitution is still allowing and will allow for some time in future , can't we use "will"???

Answer 1

The following are correct:

1. Voters are considering changes to Russia’s constitution that would allow President Vladimir Putin to hold power until 2036.

2. A majority of voters approved changes to Russia’s constitution that will allow President Vladimir Putin to hold power until 2036.

“A majority of voters approved changes that would” is wrong, because the the changes are no longer contingent. The “election” has been held; the changes will cause the indicated consequence.

(Not the correction to the spelling and capitalization of the names.)

Answer 2

The second one is appropriate, because assuming from the context, the "changes" haven't been made yet. So if they are made, they will be made in the future, so 'will' is appropriate. We hardly ever use 'would' instead of 'will' when the future of both 'now' and the past is the same.