Steemit recently released their Pre-Release of the Steemit Hard Fork #19 and what it would detail. There are a few main things that will change:
1)Voting power will be increased for the average user, but take a longer time for it to get to 100%
2)Posts after 7 Days can't be deleted
3)Curation rewards will change from Linear to Square Root function
4)A bunch of bug fixes
Here is a link detailing the changes: https://github.com/steemit/steem/releases/tag/v0.19.0rc1
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