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Release Notes for [**release-2025-03-27\_03-14-base**](https://github.com/dfinity/ic/tree/release-2025-03-27_03-14-base) (3ae3649a2366aaca83404b692fc58e4c6e604a25)
===================================================================================================================================================================

This release is based on changes since [release-2025-03-20\_03-11-base](https://dashboard.internetcomputer.org/release/4833f30d3b5afd84a385dfb146581580285d8a7e) (4833f30d3b5afd84a385dfb146581580285d8a7e).

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-2025-03-20_03-11-base...release-2025-03-27_03-14-base).

This release diverges from the latest release. Merge base is [2fe8aefafcb2fbee6fdb2785374d5de715560269](https://github.com/dfinity/ic/tree/2fe8aefafcb2fbee6fdb2785374d5de715560269). Changes [were removed](https://github.com/dfinity/ic/compare/release-2025-03-27_03-14-base...release-2025-03-20_03-11-base) from this release.

Features:
---------

* [`d073bc43f`](https://github.com/dfinity/ic/commit/d073bc43f) Consensus,Execution,Interface: Increase sandbox limit ([#4491](https://github.com/dfinity/ic/pull/4491))
* [`4070d82b7`](https://github.com/dfinity/ic/commit/4070d82b7) Consensus,Execution,Interface: Introduce feature flags for canister snapshot import and export ([#4519](https://github.com/dfinity/ic/pull/4519))
* [`3cdab8309`](https://github.com/dfinity/ic/commit/3cdab8309) Consensus,Interface: use resuming downloads for file downloader ([#4415](https://github.com/dfinity/ic/pull/4415))
* [`7099a3838`](https://github.com/dfinity/ic/commit/7099a3838) Consensus,Interface: Implement Consensus for ReshareChainKey for VetKD ([#4248](https://github.com/dfinity/ic/pull/4248))
* [`0cc84afde`](https://github.com/dfinity/ic/commit/0cc84afde) Execution,Interface(EXC): Skip compilation charge when Wasm is in cache ([#4506](https://github.com/dfinity/ic/pull/4506))
* [`b5028d836`](https://github.com/dfinity/ic/commit/b5028d836) Interface: adding timestamps to HighCapacityRegistryValue ([#4450](https://github.com/dfinity/ic/pull/4450))
* [`c3f0331bc`](https://github.com/dfinity/ic/commit/c3f0331bc) Interface(ICRC\_Ledger): Export total volume counter metric for ICRC ledger ([#4166](https://github.com/dfinity/ic/pull/4166))
* [`219abad14`](https://github.com/dfinity/ic/commit/219abad14) Interface(ICP-Ledger): migrate ledger blocks to stable structures ([#3836](https://github.com/dfinity/ic/pull/3836))
* [`6506fe857`](https://github.com/dfinity/ic/commit/6506fe857) Interface,Message Routing: Remove checkpoint asynchronously ([#4263](https://github.com/dfinity/ic/pull/4263))

Bugfixes:
---------

* [`27c9d2b5d`](https://github.com/dfinity/ic/commit/27c9d2b5d) Interface,Message Routing: Exclude unverified checkpoint marker when listing all paths for marking ReadOnly ([#4429](https://github.com/dfinity/ic/pull/4429))

Chores:
-------

* [`6c830bd2e`](https://github.com/dfinity/ic/commit/6c830bd2e) Consensus,Interface: introduce a couple of new metrics to the ingress manager ([#4455](https://github.com/dfinity/ic/pull/4455))
* [`3a5e3ec21`](https://github.com/dfinity/ic/commit/3a5e3ec21) Execution,Interface: Fix incorrect cost ([#4490](https://github.com/dfinity/ic/pull/4490))
* [`b8ff2bc74`](https://github.com/dfinity/ic/commit/b8ff2bc74) Execution,Interface: Unify Global type ([#4376](https://github.com/dfinity/ic/pull/4376))
* [`9feabf95a`](https://github.com/dfinity/ic/commit/9feabf95a) Interface(Ledgers): remove unused dfn build dependencies ([#4465](https://github.com/dfinity/ic/pull/4465))
* [`34176db11`](https://github.com/dfinity/ic/commit/34176db11) Interface,Message Routing: Extra logs for the end of state sync ([#4497](https://github.com/dfinity/ic/pull/4497))
* [`d67409872`](https://github.com/dfinity/ic/commit/d67409872) Interface,Node: add a file size check for ic-os upgrade images ([#4453](https://github.com/dfinity/ic/pull/4453))
* [`7351a7e2b`](https://github.com/dfinity/ic/commit/7351a7e2b) Owners(IDX): upgrade bazel & bazelisk ([#4494](https://github.com/dfinity/ic/pull/4494))
* [`896cd1f34`](https://github.com/dfinity/ic/commit/896cd1f34) Node: Remove exec mem permissions ([#4492](https://github.com/dfinity/ic/pull/4492))
* [`65ece1be4`](https://github.com/dfinity/ic/commit/65ece1be4) Node: Update Base Image Refs [2025-03-26-0149] ([#4517](https://github.com/dfinity/ic/pull/4517))
* [`4267d5b64`](https://github.com/dfinity/ic/commit/4267d5b64) Node: Update Base Image Refs [2025-03-20-0807] ([#4439](https://github.com/dfinity/ic/pull/4439))

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

* [`1d63e9f6d`](https://github.com/dfinity/ic/commit/1d63e9f6d) Consensus,Interface(consensus): Merge Imports in consensus crate ([#4481](https://github.com/dfinity/ic/pull/4481))
* [`7e78d5c32`](https://github.com/dfinity/ic/commit/7e78d5c32) Consensus,Interface: move ingress manager metrics to a separate file ([#4454](https://github.com/dfinity/ic/pull/4454))
* [`01b6a4139`](https://github.com/dfinity/ic/commit/01b6a4139) Consensus,Interface(consensus): Move Certification into its own crate ([#4437](https://github.com/dfinity/ic/pull/4437))
* [`ff89bb980`](https://github.com/dfinity/ic/commit/ff89bb980) Execution,Interface,Message Routing: Remove the parts of old CanisterStateBits after migration ([#4335](https://github.com/dfinity/ic/pull/4335))

Other changes:
--------------

* [`9daac230f`](https://github.com/dfinity/ic/commit/9daac230f) Node: "chore(): Remove execmem permissions" ([#4528](https://github.com/dfinity/ic/pull/4528))

-------------------------------------------
Full list of changes (including the ones that are not relevant to GuestOS) can be found on [GitHub](https://github.com/dfinity/dre/blob/7d6c0463ef13700e064a27e7da80ff521ce8050c/replica-releases/3ae3649a2366aaca83404b692fc58e4c6e604a25.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/3ae3649a2366aaca83404b692fc58e4c6e604a25/ci/tools/repro-check.sh && chmod +x repro-check.sh && ./repro-check.sh -c 3ae3649a2366aaca83404b692fc58e4c6e604a25 --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 3ae3649)