DFINITY Foundation

ICDevs.org

CryptoIsGood

Anvil

ICPL.app

ysyms

The Accumulators’ Neuron

RawTech Venture

Paul Young

ICPMANUAL

8YearGangDAO

Isaac Valadez

Krzysztof

Nicolas.ic

Smaug’s Neuron for Retail Investors

ICLight.io

Taggr Network

Sonic AMM

Rakeoff.io

OpenChat

ELNA AI

GEEKFACTORY

ICP Hub México

ICP Hub Poland

Jerry Banfield

WaterNeuron

ICP Hub Bulgaria

Gold DAO

NeuronPool

LORIMER ♾️ 🐶

B3Pay

ZenithCode

Aviate Labs

D-QUORUM

Yuku AI

CO.DELTA △

DragginCorp

Gwojda

Thyassa

🌮 TACO DAO Neuron

Ωmega-reject

Ωmega-vote

αlpha-vote

Cybersecurity

cyberowl

Dexter Caff/acc

JMVR

Smacker

CodeGov.org (see neuron merger plan with the Wenzel known neuron)

Wenzel

Synapse (see neuron merger plan with the Wenzel known neuron)

Install, reinstall or upgrade code of a canister controlled by the NNS.

# Backend Canister Upgrade

Frontend assets are no longer embedded into the II backend canister, which reduces the Wasm size.

It is now much easier to initialize the II backend canister for local testing, since `(null)` works
in most cases as an appropriate install arg.

## What's Changed

_Since `proposal-backend-140863`_

- feat: Remove frontend assets from the II backend canister and simplify canister initialization in testnets (#3693)
- feat: replace dev_csp compile-time feature with init arg for frontend canister (#3683)

[Full release notes](https://github.com/dfinity/internet-identity/releases/tag/release-2026-03-23)

## Wasm Verification

To build the wasm modules yourself and verify their hashes, run the following commands from the root of the [Internet Identity repository](https://github.com/dfinity/internet-identity):

```
git pull  # to ensure you have the latest changes.
git checkout 25242c01c6d559c169fa4356d73e15576365625b
./scripts/verify-hash --ii-hash 5cb8c487e001174b47a5ed02db328e593c77aa48f9d21caf63524e0567d9177c
```

## Backend Argument Verification

Run the following command to verify the backend upgrade argument hash:

```
didc encode -d ./src/internet_identity/internet_identity.did -t '(opt InternetIdentityInit)' '(null)' | xxd -r -p | sha256sum
```

The output should match the argument hash.


Upgrade Internet Identity Backend Canister to a262076f