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`CheckMetadataHash` extension backport to 1.2.0 #4575

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bkchr merged 2 commits into release-polkadot-v1.2.0 from bkchr-metadata-hash-1.2.0

May 27, 2024

Commits on May 24, 2024

wasm-builder: Make it easier to build a WASM binary (#4177 )
```
Basically combines all the recommended calls into one
`build_using_defaults()` call or `init_with_defaults()` when there are
some custom changes required.
```
bkchr committed May 24, 2024
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Commits on May 25, 2024

Implement CheckMetadataHash extension (#4274 )

This implements the `CheckMetadataHash` extension as described in
[RFC78](https://polkadot-fellows.github.io/RFCs/approved/0078-merkleized-metadata.html).

Besides the signed extension, the `substrate-wasm-builder` is extended
to support generating the metadata-hash.

Closes: #291

---------

Co-authored-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: Liam Aharon <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

5 people committed May 25, 2024