2020-NOV-15 Network Upgrade Specification
Version 0.2, 2020-08-06
When the median time past  of the most recent 11 blocks (MTP-11) is greater than or equal to UNIX timestamp 1605441600, Bitcoin Cash will execute an upgrade of the network consensus rules according to this specification.
Starting from the next block these consensus rules changes will take effect:
- Bitcoin Cash's current difficulty adjustment algorithm will be replaced
by a new algorithm named
aserti3-2d, referred to as 'ASERT' for short.
The ASERT algorithm is described in full specification: ASERT.
Automatic Replay Protection
Both before and after this upgrade, Bitcoin Cash full nodes and wallets MUST enforce the following rule:
forkid to be equal to 0.
 Median Time Past is described in bitcoin.it wiki. It is guaranteed by consensus rules to be monotonically increasing.
forkId is defined as per the replay protected sighash specification.