Update version_notes.adoc with v0.13 versions on testnets

[odednaor]

Description of the Changes

Release notes of Starknet v0.13, and update versions tables on Starknet, Cairo, and Sierra version numbers.

PR Preview URL

https://starknet-io.github.io/starknet-docs/pr-1023/documentation/starknet_versions/version_notes/

Check List

• Changes have been done against master branch, and PR does not conflict
• PR title follows the convention: <docs/feat/fix/chore>(optional scope): <description>, e.g: fix: minor typos in code

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This change is 

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[odednaor]

@stoobie What should we do with the v0.13 release notes on the upcoming versions page while mainnet is not yet upgraded to v0.13?

[ArielElp]

Reviewable status: 0 of 1 files reviewed, 3 unresolved discussions (waiting on @odednaor and @stoobie)

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 32 at r1 (raw file):

** Fee payment in STRK
** Reserved fields for future features, such as volition and payment master
* `get_block` API: Rename the `gas_price` field to `eth_l1_gas_price` and add a new field `strk_l1_gas_price` (this applies to old blocks as well)

Replace this point with a link to v0.6.0 spec https://github.com/starkware-libs/starknet-specs/releases/tag/v0.6.0

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 33 at r1 (raw file):

** Reserved fields for future features, such as volition and payment master
* `get_block` API: Rename the `gas_price` field to `eth_l1_gas_price` and add a new field `strk_l1_gas_price` (this applies to old blocks as well)
* Update Sierra version used in Starknet to `1.4.0` (introduced in crate version `v2.4.0` of the cairo package)

replace this with a link here https://community.starknet.io/t/cairo-v2-4-0-is-out/109275

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 35 at r1 (raw file):

* Update Sierra version used in Starknet to `1.4.0` (introduced in crate version `v2.4.0` of the cairo package)
* Improved performance of `secp256k1_mul` and `secp256r1_mul` syscalls

we need a another bullet point about cost reduction: computation cost is reduced by roughly 2x (cairo steps and builtins), DA cost is reduced by roughly 10%.

[stoobie]

Reviewable status: 0 of 1 files reviewed, 7 unresolved discussions (waiting on @ArielElp and @odednaor)

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 35 at r1 (raw file):

Previously, ArielElp wrote…

we need a another bullet point about cost reduction: computation cost is reduced by roughly 2x (cairo steps and builtins), DA cost is reduced by roughly 10%.

PTAL.

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 32 at r2 (raw file):

** Fee payment in STRK
** Reserved fields for future features, such as volition and payment master
* `get_block` API: Rename the `gas_price` field to `eth_l1_gas_price` and add a new field `strk_l1_gas_price` (this applies to old blocks as well)

Suggestion:

`get_block` API: The `gas_price` field is replaced by the `eth_l1_gas_price` and `strk_l1_gas_price` fields. This change applies also to existing blocks. For more information on the new fields, see the link:https://github.com/starkware-libs/starknet-specs/releases/tag/v0.6.0[JSON RPC API Spec on Github]

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 33 at r2 (raw file):

** Reserved fields for future features, such as volition and payment master
* `get_block` API: Rename the `gas_price` field to `eth_l1_gas_price` and add a new field `strk_l1_gas_price` (this applies to old blocks as well)
* Update Sierra version used in Starknet to `1.4.0` (introduced in crate version `v2.4.0` of the cairo package)

Suggestion:

* Sierra v1.4.0. This new version of Sierra is part of Crate v2.4.0, in the Cairo 2.4.0 package.

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 34 at r2 (raw file):

* `get_block` API: Rename the `gas_price` field to `eth_l1_gas_price` and add a new field `strk_l1_gas_price` (this applies to old blocks as well)
* Update Sierra version used in Starknet to `1.4.0` (introduced in crate version `v2.4.0` of the cairo package)
* Improved performance of `secp256k1_mul` and `secp256r1_mul` syscalls

We don't document these syscalls. Should we?

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components/Starknet/modules/starknet_versions/pages/version_notes.adoc line 34 at r2 (raw file):

* `get_block` API: Rename the `gas_price` field to `eth_l1_gas_price` and add a new field `strk_l1_gas_price` (this applies to old blocks as well)
* Update Sierra version used in Starknet to `1.4.0` (introduced in crate version `v2.4.0` of the cairo package)
* Improved performance of `secp256k1_mul` and `secp256r1_mul` syscalls

Suggestion:

* Improved performance of `secp256k1_mul` and `secp256r1_mul` syscalls
* Computation cost is reduced approximately 200% as a result of reduced Cairo steps and increased use of builtins. L1 data availability cost is reduced by approximtately 10%.

[stoobie]

@odednaor I added some comments and suggestions in Reviewable.

[stoobie]

@stoobie What should we do with the v0.13 release notes on the upcoming versions page while mainnet is not yet upgraded to v0.13?

@odednaor Well, the info on that page is more detailed than the info in this PR. I thought to just move that info into the Release notes and remove that page for now. We clearly state the status on testnet and Mainnet.

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