DFINITY Foundation

Synapse.vote (original)

Arthur’s Neuron (used to be cycle_dao)

ICDevs.org

CryptoIsGood

Anvil

ICPL.app

Inactive (Request Removal) - The Fools' Court

ysyms

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RawTech Venture

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ICPMANUAL

8yeargangDAO

John Wiegley

Isaac Valadez

Krzysztof Żelazko

Always Rejects

Nicolas.ic

Smaug’s Neuron for Retail Investors

ICLight.io

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Taggr Network

CodeGov

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Rakeoff.io

$STACK

OpenChat

ELNA AI

GEEKFACTORY

ICP Hub México

ICP Hub Poland

Jerry Banfield

WaterNeuron

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Gold DAO

NeuronPool

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CO.DELTA △

Release Notes for [**release-2025-03-20\_03-11-base**](https://github.com/dfinity/ic/tree/release-2025-03-20_03-11-base) (4833f30d3b5afd84a385dfb146581580285d8a7e)
===================================================================================================================================================================

This release is based on changes since [release-2025-03-14\_03-10-base](https://dashboard.internetcomputer.org/release/f6f5e0927d14886e4bd67f776ee889f31cec2364) (f6f5e0927d14886e4bd67f776ee889f31cec2364).

Please note that some commits may be excluded from this release if they're not relevant, or not modifying the GuestOS image. Additionally, descriptions of some changes might have been slightly modified to fit the release notes format.

To see a full list of commits added since last release, compare the revisions on [GitHub](https://github.com/dfinity/ic/compare/release-2025-03-14_03-10-base...release-2025-03-20_03-11-base).

Features:
---------

* [`9d4e0c4c9`](https://github.com/dfinity/ic/commit/9d4e0c4c9) Consensus,Execution,Interface(MR): Roll out best-effort calls to all application subnets ([#4408](https://github.com/dfinity/ic/pull/4408))
* [`51b1dfde0`](https://github.com/dfinity/ic/commit/51b1dfde0) Consensus,Interface: Add VetKD to orchestrator public key monitoring ([#4388](https://github.com/dfinity/ic/pull/4388))
* [`3a3cf5537`](https://github.com/dfinity/ic/commit/3a3cf5537) Execution,Interface: Add signal handler duration metric ([#4186](https://github.com/dfinity/ic/pull/4186))
* [`05ffe4577`](https://github.com/dfinity/ic/commit/05ffe4577) Execution,Interface,Message Routing(MR): Track cycles lost when dropping messages ([#4331](https://github.com/dfinity/ic/pull/4331))
* [`2fe8aefaf`](https://github.com/dfinity/ic/commit/2fe8aefaf) Interface(node-reward): Add registry sync to node reward canister ([#4349](https://github.com/dfinity/ic/pull/4349))

Bugfixes:
---------

* [`41868ddc7`](https://github.com/dfinity/ic/commit/41868ddc7) Consensus,Interface: Remove flakiness from the bitcoin adapter integration test ([#4375](https://github.com/dfinity/ic/pull/4375))
* [`35cb4bc5a`](https://github.com/dfinity/ic/commit/35cb4bc5a) Execution,Interface: Fix same round install code and draining queues ([#4346](https://github.com/dfinity/ic/pull/4346))

Chores:
-------

* [`a6cbcf713`](https://github.com/dfinity/ic/commit/a6cbcf713) Consensus,Interface: Remove custom ExhaustiveSet implementation for AlgorithmId ([#4392](https://github.com/dfinity/ic/pull/4392))
* [`1e5e864a9`](https://github.com/dfinity/ic/commit/1e5e864a9) Interface,Node(node): Increase HostOS upgrade download timeout ([#4422](https://github.com/dfinity/ic/pull/4422))
* [`fa37ed573`](https://github.com/dfinity/ic/commit/fa37ed573) Owners(crypto): Bump ic\_bls12\_381 ([#4367](https://github.com/dfinity/ic/pull/4367))

Refactoring:
------------

* [`4ba1e1b7b`](https://github.com/dfinity/ic/commit/4ba1e1b7b) Consensus,Interface: Wrap derivation\_path and VetKD input context fields in Arc<\_> ([#4361](https://github.com/dfinity/ic/pull/4361))
* [`bd2d7d1fa`](https://github.com/dfinity/ic/commit/bd2d7d1fa) Interface,Message Routing: Downgrade panic to debug\_assert in Payload::take\_prefix ([#4383](https://github.com/dfinity/ic/pull/4383))
* [`ec7834c47`](https://github.com/dfinity/ic/commit/ec7834c47) Interface,Message Routing: Downgrade panic to debug\_assert in Payload::take\_prefix, part 2 ([#4384](https://github.com/dfinity/ic/pull/4384))

Tests:
------

* [`54c19b3b6`](https://github.com/dfinity/ic/commit/54c19b3b6) Interface: Efficiently write LocalStoreImpl to disk ([#4363](https://github.com/dfinity/ic/pull/4363))

-------------------------------------------
Full list of changes (including the ones that are not relevant to GuestOS) can be found on [GitHub](https://github.com/dfinity/dre/blob/bcf1f93ebcc0acefb04f715fe8ee1b29d14c8061/replica-releases/4833f30d3b5afd84a385dfb146581580285d8a7e.md).

# IC-OS Verification

To build and verify the IC-OS disk image, run:

```
# From https://github.com/dfinity/ic#verifying-releases
sudo apt-get install -y curl && curl --proto '=https' --tlsv1.2 -sSLO https://raw.githubusercontent.com/dfinity/ic/4833f30d3b5afd84a385dfb146581580285d8a7e/ci/tools/repro-check.sh && chmod +x repro-check.sh && ./repro-check.sh -c 4833f30d3b5afd84a385dfb146581580285d8a7e --guestos
```

The two SHA256 sums printed above from a) the downloaded CDN image and b) the locally built image, must be identical, and must match the SHA256 from the payload of the NNS proposal.

While not required for this NNS proposal, as we are only electing a new GuestOS version here, you have the option to verify the build reproducibility of the HostOS by passing `--hostos` to the script above instead of `--guestos`, or the SetupOS by passing `--setupos`.


Elect new IC/Replica revision (commit 4833f30)