Protocol changes move as proposals on zcash/zips. Since NU6.1, twelve percent of every block accrues to a fund the coinholders direct. Both are tracked here from their primary sources.
The next network upgrade, NU7NU7. Network Upgrade 7, the next change to Zcash's rules, targeted for 5 Nov 2026. It makes blocks three times as frequent., makes blocks three times faster. What changes for holders, what does not, and the one question the drafts leave open.
Timeline: code complete 30 Sep, testnet 6 Oct, mainnet height proposed 20 Oct, mainnet target 5 Nov. NU7 activates at block 3,543,405. Sources: ZIP-218, ZIP-259 (NU7 deployment), ZIP-214, ZecHub digest, 20 Sep.
$91.9M at today's price has accrued since NU6.1, plus $98.2M from the lockbox era before it. These are accruals: what has been paid out is decided by coinholder votes, which run on the forum.
Every change to Zcash starts as a pull request on the ZIPs repository. Newest activity first.
Heights are read from the reference node's chain parameters (Zebra; zcashd is retired). Dates are the timestamp of the actual activation block, not an estimate.