Introduction to the novelty of substrate source code: comprehensive update of Boca system Boca weight calculation, optimization and adjustment of governance version 2.0

20220530 - 20220605

Governance 2.0  Version optimization and adjustment

Governance 2.0  It's been published since this year 3 Since the month , Gavin Start a series of adjustments and optimization ,  This includes related beanchmark and weight The implementation of the ,  Redo the linear decline curve algorithm to support curve calculation related types ,  Add step curve ,  Add constant function ,  modify Referenda And voting ,  And Treasury related algorithms ,  And updated the basic type of arithmetic part .

Related implementations have been incorporated into Kusama Inside .

details :

https://github.com/paritytech/substrate/pull/11493

Boca weight calculation is fully updated

This week, the weights related to Boca relay chain were updated ,  For example, the weight of nano level empty blocks ranges from [5730330, 5985274] Extended to [5624778, 6071601] etc. ,  Respective pallet And modules have been updated ,  Change the source file 129 individual ,  It belongs to a relatively large area of renewal ,  It also provides backport;  Suggest follow.

details : 

https://github.com/paritytech/substrate/pull/11381

Statemint  No longer recognize reservation DOT The way

Statemint It is the original Public Welfare chain of Boca ,  And Polkadot and Kusama There is absolute trust between them ,  Therefore, it can be used with the relay chain Teleport To conduct cross chain asset flow ,  Without having to use

reserve

The way ,  Therefore, this update cancels this method .  In the future, it will support the parallel chain

reserve

Asset identification

details : 

https://github.com/paritytech/substrate/pull/11431

cumulus to update :  Ensure that the trunk chain block number is strictly incremented

This update will ensure that the block number of the relay chain is strictly increasing ,  To support the legitimacy of corresponding blocks of multiple parallel chains ;  However, the current security work has not been completed ,  In the future, the block numbers of parallel chains and relay chains need to be strictly locked .

details : https://github.com/paritytech/cumulus/pull/1280

Polkadot v0.9.23 Version release

The source code version has been updated ,  But they are all small version updates ,  Therefore, each parallel chain can choose whether follow.

Updated details : https://github.com/paritytech/polkadot/releases/tag/v0.9.23

This paper is about SEP Creation  Original group articles ,  By pengyalun

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