dash/doc/release-notes-5262.md
Odysseas Gabrielides 0566ed7e95
docs: Added release notes for #5262 (#5558)
## Issue being fixed or feature implemented


## What was done?
Added release notes for #5262.

## How Has This Been Tested?


## Breaking Changes


## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [x] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

---------

Co-authored-by: PastaPastaPasta <6443210+PastaPastaPasta@users.noreply.github.com>
Co-authored-by: thephez <thephez@users.noreply.github.com>
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
2023-09-04 21:39:42 -05:00

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Coinbase Changes
------------------------
Once v20 activates, Coinbase transactions in all mined blocks must be of version 3.
Version 3 of Coinbase will include the following two fields:
- bestCLHeightDiff (uint32)
- bestCLSignature (BLSSignature)
bestCLSignature will hold the best Chainlock signature known at the moment of mining.
bestCLHeightDiff is equal to the diff in heights from the mined block height to the actual Chainlocked block height.
Although miners are forced to include a version 3 Coinbase, the actual real-time best Chainlock signature isn't required as long as blocks contain a bestCLSignature equal to (or newer than) the previous block.
Note: Until the first bestCLSignature is included in a Coinbase once v20 activates, null bestCLSignature and bestCLHeightDiff values are perfectly valid.