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What ❔

Why ❔

Is this a breaking change?

  • Yes
  • No

Operational changes

Checklist

  • PR title corresponds to the body of PR (we generate changelog entries from PRs).
  • Tests for the changes have been added / updated.
  • Documentation comments have been added / updated.
  • Code has been formatted via zkstack dev fmt and zkstack dev lint.

zkzoomer and others added 30 commits June 26, 2025 16:59
## What ❔

updates is_pre_fast_blocks and fixes some unit tests

## Why ❔

enable sub-second blocks for v29

## Is this a breaking change?
- [ ] Yes
- [ ] No

## Operational changes
<!-- Any config changes? Any new flags? Any changes to any scripts? -->
<!-- Please add anything that non-Matter Labs entities running their own
ZK Chain may need to know -->

## Checklist

<!-- Check your PR fulfills the following items. -->
<!-- For draft PRs check the boxes as you complete them. -->

- [ ] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.
- [ ] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.
## What ❔

Includes:
- [x] Removal of `BatchOrBlockNumber`
- [x] Removal of `received_timestamp`
- [x] Recent major VM changes from
#4221

<!-- What are the changes this PR brings about? -->
<!-- Example: This PR adds a PR template to the repo. -->
<!-- (For bigger PRs adding more context is appreciated) -->

## Why ❔

<!-- Why are these changes done? What goal do they contribute to? What
are the principles behind them? -->
<!-- The `Why` has to be clear to non-Matter Labs entities running their
own ZK Chain -->
<!-- Example: PR templates ensure PR reviewers, observers, and future
iterators are in context about the evolution of repos. -->

## Is this a breaking change?
- [ ] Yes
- [ ] No

## Operational changes
<!-- Any config changes? Any new flags? Any changes to any scripts? -->
<!-- Please add anything that non-Matter Labs entities running their own
ZK Chain may need to know -->

## Checklist

<!-- Check your PR fulfills the following items. -->
<!-- For draft PRs check the boxes as you complete them. -->

- [ ] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.
- [ ] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.
## What ❔

Merges `BatchRootProcessor` and `BatchRootProcessorInterop` into a
single one

<!-- What are the changes this PR brings about? -->
<!-- Example: This PR adds a PR template to the repo. -->
<!-- (For bigger PRs adding more context is appreciated) -->

## Why ❔

<!-- Why are these changes done? What goal do they contribute to? What
are the principles behind them? -->
<!-- The `Why` has to be clear to non-Matter Labs entities running their
own ZK Chain -->
<!-- Example: PR templates ensure PR reviewers, observers, and future
iterators are in context about the evolution of repos. -->

## Is this a breaking change?
- [ ] Yes
- [ ] No

## Operational changes
<!-- Any config changes? Any new flags? Any changes to any scripts? -->
<!-- Please add anything that non-Matter Labs entities running their own
ZK Chain may need to know -->

## Checklist

<!-- Check your PR fulfills the following items. -->
<!-- For draft PRs check the boxes as you complete them. -->

- [ ] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.
- [ ] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.
@mm-zk-admin mm-zk-admin closed this Jan 5, 2026
@mm-zk-admin mm-zk-admin deleted the draft-v30 branch January 5, 2026 12:20
@mm-zk-admin mm-zk-admin restored the draft-v30 branch January 5, 2026 12:21
@zkzoomer zkzoomer reopened this Jan 6, 2026
@zkzoomer zkzoomer changed the title Draft v30 Draft v31 Jan 12, 2026
## What ❔

<!-- What are the changes this PR brings about? -->
<!-- Example: This PR adds a PR template to the repo. -->
<!-- (For bigger PRs adding more context is appreciated) -->

## Why ❔

<!-- Why are these changes done? What goal do they contribute to? What
are the principles behind them? -->
<!-- The `Why` has to be clear to non-Matter Labs entities running their
own ZK Chain -->
<!-- Example: PR templates ensure PR reviewers, observers, and future
iterators are in context about the evolution of repos. -->

## Is this a breaking change?
- [ ] Yes
- [ ] No

## Operational changes
<!-- Any config changes? Any new flags? Any changes to any scripts? -->
<!-- Please add anything that non-Matter Labs entities running their own
ZK Chain may need to know -->

## Checklist

<!-- Check your PR fulfills the following items. -->
<!-- For draft PRs check the boxes as you complete them. -->

- [ ] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.
- [ ] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.

---------

Signed-off-by: Danil <[email protected]>
Co-authored-by: 0xValera <[email protected]>
Co-authored-by: zkzoomer <[email protected]>
Co-authored-by: Danil <[email protected]>
Co-authored-by: 0xValera <[email protected]>
Co-authored-by: Stanislav Breadless <[email protected]>
Co-authored-by: Coffee ☕️ <[email protected]>
Co-authored-by: zksync-era-bot <[email protected]>
Co-authored-by: zksync-era-bot <[email protected]>
Co-authored-by: bxpana <[email protected]>
@zkzoomer zkzoomer closed this Jan 13, 2026
@zkzoomer zkzoomer deleted the draft-v30 branch January 13, 2026 10:12
@zkzoomer zkzoomer restored the draft-v30 branch January 13, 2026 10:13
@zkzoomer
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Moved to #4608

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9 participants