The bug and the fix was real. It addressed a scenario where the emission rate would reset back to 50 cyclically after 64 halvings. The BIP was an April Fool's Day joke that ascribed certain goofy ideas to Satoshi that are not corroborated by anything he ever said.

richnost

 were merged. So I think the date is just a coincidence here.

Standards Track BIPs consist of two parts, a design document and a reference implementation. The BIP should be reviewed and accepted before a reference implementation is begun, unless a reference implementation will aid people in studying the BIP. Standards Track BIPs must include an implementation -- in the form of code, a patch, or a URL to same -- before it can be considered Final.

Once a BIP has been accepted, the reference implementation must be completed. When the reference implementation is complete and accepted by the community, the status will be changed to "Final".

https://bips.xyz/1

bitcoin

Can someone explain the background to BIP42 please? (21 million fixed supply)

chungkingexpress

The BIP is final. And the [changes](https://github.com/bitcoin/bitcoin/pull/3842) were merged. So I think the date is just a coincidence here.

For reference:

> Standards Track BIPs consist of two parts, a design document and a reference implementation. The BIP should be reviewed and accepted before a reference implementation is begun, unless a reference implementation will aid people in studying the BIP. Standards Track BIPs must include an implementation -- in the form of code, a patch, or a URL to same -- before it can be considered Final.
>
> Once a BIP has been accepted, the reference implementation must be completed. When the reference implementation is complete and accepted by the community, the status will be changed to "Final".

-- https://bips.xyz/1