Decision-Makers' Guide to Safely Rolling Out Blockchain in 2025: Alright, so let’s dive into how you can get your Continuous Integration/Continuous Deployment (CI/CD) process up and running for smart contracts. You'll want to choose the best production-grade key management solutions, like Key Management Systems (KMS), Hardware Security Modules (HSM), Multi-Party Computation (MPC), and multisignature or account abstraction setups. Plus, don’t forget to whip up some solid rollback and “undo” playbooks, especially with everything that’s happened post-Pectra and SELFDESTRUCT. It’s crucial to be prepared! We've packed in some really detailed pipelines, configs, and runbooks that you can start using this quarter. You'll be able to put these into action right away!

Blockchain deployment tools in 2025: CI/CD, Key Management, and Rollback Strategies

Between 2024 and 2025, Ethereum went through some pretty major changes. So, on May 7, 2025 (that’s epoch 364,032 for those keeping track), Pectra officially launched! With it came EIP-7702, which rolled out the cool feature of programmable EOAs. We also got to see calldata repricing come into play with EIP‑7623. Also, remember when EIP-6780 shook things up by putting restrictions on the SELFDESTRUCT function? It really changed the game by stopping those pesky patterns where you could recreate contracts at the same address. These updates really shake things up for testing, signing, deploying, and even rolling back production contracts. It's a whole new ballgame! For all the juicy details, be sure to swing by the Ethereum blog! You won't want to miss it!

This guide is all about how both startup and enterprise teams can get their CI/CD game on point, manage keys, and tackle rollbacks for chains in 2025. Let's dive in! We'll walk you through some straightforward, step-by-step instructions to make everything a breeze!

1) CI/CD that anticipates Pectra, 4337, and 7702

Your pipeline should be more than just a simple build-and-deploy process. It should also:.

Ensure storage-layout compatibility
Fuzz invariants
Let’s run through some simulated upgrades and user flows for 4337 and 7702.
Check the code on the explorers.
Make sure to send over signed artifacts that can be verified.

Recommended Toolchain

Build/Test: You can choose between Foundry (which includes forge, cast, and anvil) or Hardhat 3. Both have their perks, so pick the one that feels right for you! 0+. I have to say, Hardhat's verification plugin is pretty awesome! It plays nicely with Etherscan, Blockscout, and Sourcify, which is super handy. On another note, Foundry's verify commands are ready to roll with Etherscan V2. Check it out here.
Upgrade checks: If you want to make sure your upgrades are totally safe, you’ll definitely want to check out the OpenZeppelin Upgrades Plugin. It works great with both Hardhat and Foundry, so it's like having a trusty sidekick while you're working on your projects! It checks that upgrades are safe and keeps an eye on how they're being carried out. openzeppelin files for Hardhat. If you’re looking for more details, you can check it out here. It's a great resource!
Static analysis and fuzzing: When it comes to static analysis and fuzzing, I really like using Slither for checking upgradeability--it does a solid job. On the other hand, Echidna shines when it comes to handling invariants. It's a good combo! Feel free to check it out here!
Scaling up your simulations: If you’re looking to run some larger-scale simulations, Tenderly Simulations and DevNets are incredibly useful. They provide state overrides along with bundled simulations. And don't forget, you can totally use its RPC or API in your CI setup for those test runs before you actually go live. Get more details here.
Types and SDKs: If you're looking for a reliable way to generate types for Ethers or Viem clients, TypeChain is definitely a great option! Take a look at it on GitHub right here!
Supply-chain integrity: If you want to keep your supply chain in check, think about using GitHub Artifact Attestations along with Sigstore Cosign v3. It’s a solid combo that can really help ensure everything stays secure. With this combination, you can easily sign off on build outputs, including ABIs, bytecode, and deployment scripts. For all the details, just check it out here.

Example: GitHub Actions pipeline (Foundry + Hardhat verify + attestations)

name: contracts-ci
on:
  push:
    branches: [main]
  pull_request:

permissions:
  id-token: write   # OIDC for cloud KMS or attestation
  contents: read

jobs:
  test-and-verify:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Foundry
        uses: foundry-rs/foundry-toolchain@v1
        with: { version: latest }

      - name: Install Node and deps (for Hardhat tasks/verify)
        uses: actions/setup-node@v4
        with: { node-version: '22' }
      - run: npm ci

      - name: Build & unit tests (Foundry)
        run: |
          forge build
          forge test -vvv --ffi --gas-report

      - name: Storage layout check vs previous
        run: |
          forge inspect src/MyUpgradeable.sol:MyUpgradeable storage-layout > layout.new.json
          git show origin/main:layout.mainnet.json > layout.old.json || true
          diff -u layout.old.json layout.new.json || true  # fail via policy if mismatch

      - name: Slither upgradeability checks
        uses: trailofbits/gh-action-slither@v1
        with:
          target: .
          slither-args: --checklist --filter-paths node_modules
        continue-on-error: false

      - name: Echidna invariants (short CI run)
        run: docker run --rm -v "$PWD":/code ghcr.io/crytic/echidna /bin/bash -lc \
          "cd /code && echidna-test . --config echidna.yaml --test-mode assertion --corpus-dir corpus-ci --seq-len 50 --test-limit 2000"

      - name: Pre-broadcast simulation bundle (Tenderly)
        env:
          TENDERLY_ACCESS_KEY: ${{ secrets.TENDERLY_KEY }}
          TENDERLY_ACCOUNT: ${{ secrets.TENDERLY_ACCOUNT }}
          TENDERLY_PROJECT: ${{ secrets.TENDERLY_PROJECT }}
        run: node scripts/simulate-bundle.js  # uses tenderly-sdk

      - name: Deploy to Sepolia (dry-run broadcast)
        run: forge script script/Deploy.s.sol:Deploy --rpc-url ${{ secrets.SEPOLIA_RPC }} --broadcast --fork-url ${{ secrets.SEPOLIA_RPC }} --legacy

      - name: Verify on Etherscan
        run: |
          npx hardhat verify --network sepolia $ADDRESS "arg1" "arg2"
          forge verify-contract --watch --chain sepolia $ADDRESS src/MyUpgradeable.sol:MyUpgradeable --verifier etherscan --etherscan-api-key ${{ secrets.ETHERSCAN_KEY }}

      - name: Generate attestation for build artifacts
        uses: sigstore/cosign-installer@v4
      - run: |
          cosign attest --predicate sbom.json --type cyclonedx --yes ghcr.io/OWNER/REPO/contracts:${{ github.sha }}

Hey there! So, you've got a couple of great options for hardhat verification: you can use hardhat itself or go with Foundry’s verify-contract. Both of these tools are super handy for avoiding those annoying hiccups that come from changes in explorer APIs. Trust me, they'll save you a lot of headaches! Check it out here. Hey there! Before you go ahead and start spending your gas, it’s a good idea to check out Tenderly’s Simulation API or the tenderly_simulateBundle RPC. It lets you do a dry run of your transactions and upgrades using the current state of the mainnet. That way, you can avoid any surprises! If you're looking for more info, you can check it out here. It’s all there! Hey there! So, with artifact attestations and Cosign v3, it’s super easy to keep track of where your builds are coming from. GitHub's built-in attestation format and the Sigstore bundles really help make everything crystal clear! Curious to dive deeper? Just click here and you'll find all the info you need!

Post‑Pectra test cases to add

Hey there! Just a quick reminder: for those Type-4 (7702) transactions, be sure to double-check that the authorization lists are functioning as they should. It's super important to keep everything running smoothly! Oh, and make sure to double-check that the wallets and SDKs are set up to handle everything properly. Also, take a look at those estimators to ensure they're working like they're supposed to. (ethereum.org).

If you're diving into those calldata-heavy flows, just be sure to watch for any cost changes that pop up after EIP-7623 rolls out. Hey, have you thought about maybe refactoring to blobs or compressing that calldata? It could be a smart move! (eips.ethereum.org). Hey, make sure to give your deploy scripts a good once-over, especially when it comes to the SELFDESTRUCT assumptions. It's really important to double-check that stuff! It's a good idea to avoid those "redeploy the same address after self-destruct" workarounds. Trust me, they’re going to create some issues with EIP-6780. (eips.ethereum.org).

2) Production key management: KMS/HSM, MPC, multisig, AA

There isn’t really a single “best” option out there. In most cases, the strongest stacks tend to mix together at least two of these important components.

A. Cloud KMS/HSM signers for EOAs or relayers

Hey there! Just so you know, AWS KMS really has your back with ECC_SECG_P256K1. And if you’re working with AWS CloudHSM, you can also tap into secp256k1 via JCE/PKCS#11. It’s pretty convenient! If you want to dive into the specifics, just click here. You'll find all the details you need! If you're using Azure Key Vault, you can actually sign using ES256K (that's P‑256K for those in the know). On the flip side, GCP KMS gives you the option of community signers for secp256k1, which is pretty neat! If you want to dive deeper, check this out here. It’s got all the details you need! Hey there! If you're a fan of HashiCorp Vault, you might want to check out hosting secp256k1 with Kaleido's plugin. It really gives you that "Ethereum HSM-like" API experience, which is pretty cool! If you want to get into the nitty-gritty details, just click here. Happy exploring!

If you're more into on-prem hardware, you'll be happy to know that the YubiHSM 2 (FIPS 140-2 Level 3) has got your back with secp256k1 support through PKCS#11. Find out more here.

Hey there! If you’re looking to get rid of those pesky static secrets, you should definitely check out how to use OIDC with GitHub Actions. It’s a game changer for snagging those short-lived cloud credentials. Once you’ve got that down, you can easily call KMS to sign your deployments or handle transactions. Super handy, right? Give it a try! When it comes to Azure, GCP, and AWS, they all really rely on workload identity federation. It's pretty much become a standard approach for them. If you want to dive deeper, just head over to the official docs. They’ve got all the info you need!

Practical Policy:

Make sure to stash your root keys--like those treasury and ownership ones--in a Hardware Security Module (HSM) or a managed HSM. As for your bot keys, go ahead and deploy those in a Key Management Service (KMS), but remember to set up strict IAM controls to keep things secure. Just a quick reminder: you definitely don't want to let any raw private keys come anywhere near your CI environment.

Hey, just a quick reminder to set up those receiver whitelists and stick to the EIP‑1559 pricing rules on your relayers. It’ll really help keep things running smoothly! Oh, and don’t forget to set the nonce's “validUntil” date. This way, you won’t run into any problems with nonces getting stuck. Hey there! Just a heads up--if you're still using OpenZeppelin Defender Relayers, you should know that the hosted service is going to shut down on July 1, 2026. So, it's probably a good idea to start thinking about moving over to their open-source Relayer/Monitor or checking out some other alternatives. Don't wait too long! If you're looking for more details, just click here. You'll find everything you need!

B. Multisig and smart accounts (Safe, 4337 AA, 7702)

When it comes to setting up operational multisigs, Safe is still your best bet. The Safe{Core} SDKs are loaded with all sorts of Protocol, API, and Relay kits, and they work really well with 4337. Oh, and just a heads up--their transaction service API has rolled out authenticated endpoints with rate limits now. So, it’s definitely time to give your infrastructure a little upgrade! Hey, if you want to dive into the details, just head over to this link: (docs.safe.global). You’ll find everything you need there!
If you're on the hunt for a “gasless UX,” you might want to think about pairing Safe or similar smart accounts with 4337 bundlers and paymasters. So, when it comes to paymasters, the wallet and app integration is all taken care of by ERC-7677. Check out all the details right here: (docs.erc4337.io). You’ll find everything you need to know!

Pectra’s EIP-7702 is pretty cool because it allows externally owned accounts (EOAs) to experience some of the benefits of smart wallets, all thanks to this transaction type-4 delegation thingy. This is a total game changer for rolling out phased upgrades or handling bundled admin tasks--all without having to change addresses! Hey, just a quick reminder to include those type-4 tests and policies! If you need more details, check out this link: (ethereum.org).

C. MPC (threshold signing) for institutional custody

So, you’ve got a few solid choices out there. Some of the bigger names stick with threshold ECDSA, but then there’s Fireblocks’ MPC-CMP. What’s cool about it is that it’s open-sourced, which makes it really flexible. Plus, it reduces the number of round trips you have to make and can manage cold-share setups without a hitch. Coinbase has rolled out its own open-source option known as cb-mpc. As you dive into these, don’t forget to pay attention to a few key things: check out the round complexity, look for HSM attestation--stuff like SGX is really important--and keep an eye on those rotation SLAs too. (github.com).

Recommended Blends by Product Type:

If you've got consumer apps that see a lot of transactions, definitely consider using AA smart accounts on an L2, paired with a paymaster. It's a solid combo! Oh, and make sure you set up a Safe-based admin multisig! It's super helpful for handling upgrades and managing funds easily. You’ll definitely thank yourself later!

If you're in the enterprise or financial services space, think about using HSM/KMS-backed EOAs for your relayers. It could really enhance your setup! When it comes to treasury controls, using MPC or Safe is a solid choice. Plus, adding a timelocked Governor can really help manage any changes that need to happen on-chain.

3) Upgrade and rollback strategies that actually work on chain

On a public chain, you can't just hit an “undo” button whenever you make a mistake. Just a heads up--it's super important to plan for those controlled upgrades and be ready to isolate things quickly when the situation calls for it.

A. Choose the right upgrade pattern

UUPS vs. Transparent Proxies: You can find both of these options in OpenZeppelin's plugins. UUPS helps to keep the proxy admin side of things pretty streamlined, but it’s super important to have a strong _authorizeUpgrade function ready to go. On the flip side, Beacon proxies can handle the awesome task of upgrading several instances all at once! Just a quick reminder: make sure to use the ERC-1967 storage slots. It'll help everything run a lot smoother! (docs.openzeppelin.com).
Diamonds (ERC-2535): These awesome gems let you switch up the facets, which means you can avoid that annoying 24KB limit! Plus, you can easily mix and match different modules to fit your needs. How cool is that? Take a moment to consider if your system will actually gain anything from having a bunch of function sets and detailed control over specific features. (eips.ethereum.org).

Storage Safety Gates

Check out the storage layout differences with forge inspect. storage-layout`. Don't forget to add Slither’s upgradeability checks to your CI process. You’ll want to keep an eye out for things like constant flips, any missing variables, and those pesky function ID collisions. Trust me, it'll save you from future headaches! Feel free to dive into the details right here. You'll find everything you need!

B. Governance and timelocks with emergency brakes

You should definitely consider backing your upgrade authority with either a Safe and a TimelockController, or go for a Governor paired with a Timelock. This way, you’ll have added security and control over your upgrades. Just a heads up, be sure to configure the roles so that only the timelock is allowed to execute things.
Hey, have you thought about adding a quick-response “guardian”? It would be super helpful to have someone who can hit the pause button if there’s an emergency. Just a thought! (docs.openzeppelin.com).

Typical Wiring:

Proxy Owner: TimelockController
Timelock Proposer: Think of it as a Governor or a module that's owned by Safe.
Emergency Pauser: This is like a special Safe that has some restrictions on what it can do.

C. Canary and staged rollouts on chain

It's smart to start by putting new features behind allowlists or feature flags and testing them out with a small group first. This way, you can get some feedback and make sure everything's running smoothly before a wider release. When you're working with AA wallets, it’s a good idea to think about using session keys and setting some spending limits. With ERC‑6900/7579 modular accounts, you have the flexibility to load those modules at your own pace. If you want to dive deeper into this topic, you can find more info here. Happy reading!

Hey, when you're working with rollups or apps that come with a ton of contracts, you might want to consider setting up a "shadow" instance. It can really help streamline things! This setup can either read the current state or a bridged state, which is super handy. Plus, you can route some of the traffic--whether that's through the front-end or by using an off-chain router--before you make that big switch. It's a smart way to test the waters!

D. Concrete rollback playbook (works with proxies)

Detect: Keep an eye on the on-chain monitor to catch any unusual activity, and try running some simulations to check out how things could potentially go wrong.
Contain: First, go ahead and hit pause() on the modules that are causing issues. Then, make sure to turn off those feature flags. Finally, don't forget to block any front-end routes that lead to that new aspect or implementation.
Revert code: Just use upgradeProxy to go back to that old implementation address you've saved. It's pretty straightforward! You can check out the ChangeLog on OpenZeppelin, or if you’d like, you can just do a diamondCut to restore those previous facet selectors. (github.com).
Data Fix (if needed): If you find any issues, consider creating a “Fixer” setup that uses only the authorized migration methods. Alternatively, you could run a script to handle the needed corrections with a timelock. Just remember to keep a clear record of any differences you notice from the simulation traces--it’ll save you a lot of headaches later on!
Review and move forward: Once everything’s wrapped up, take some time to create a post-mortem report. It's a great way to reflect on what happened and learn from it. Make sure to keep a signed bundle of artifacts and attestations close by for any internal reviews or when regulators come knocking.

Quick note: Just so you know, using “Selfdestruct + CREATE2” to recycle addresses isn’t really a viable option in production anymore. EIP‑6780 has done away with the general deletion semantics, so it’s time to look for other solutions! Just a heads-up: don’t rely on reusing addresses for a rollback. Take a look at it here: (eips.ethereum.org).

4) Post‑Pectra realities you must encode into CI and ops

EIP‑7702 (type‑4): Don’t forget to include some tests that allow your admin wallets and relayers to whip up and send out those authorization lists. You’ll want to double-check that your policies are playing nice and not blocking them! Oh, and don't forget to have a 4337 fallback option ready for any older tools you might still be using. It's always good to have backup just in case! If you’re curious and want to dig deeper, just check out the details here.
EIP‑7623 (calldata floor): Just a heads up to watch out for gas costs when dealing with those methods that rely heavily on calldata. Hey, if you’re working with proofs or calldata, definitely consider switching to blobs whenever possible. It could make things easier for you! We've noticed gas deltas hovering between 5% and 15% on some swap routers, but keep in mind that your results could vary a bit. Hey! If you want to dive into the details, just click here.
Tooling parity: When you’re updating your solc targets, it’s a good idea to stick with Prague or Pectra as your main EVM choice. Oh, and don’t forget to check that your Hardhat and Foundry versions match what the explorer verifier is looking for! It’s a good idea to double-check that everything’s in sync. If you're looking for information on client versions and activation details, check out the Pectra post from EF. It's got all the info you need! Find it here.

5) Two reference blueprints you can adopt now

A. Startup shipping an L2 consumer app in 6-8 weeks

Accounts/UX: We're working with safe-based smart accounts, utilizing the 4337 bundler and paymaster to handle sponsored actions. It's a pretty neat setup! If you’re someone who likes to keep things simple with an EOA, there’s a no-frills 7702 option you can explore. If you're looking for more info, just check this out: docs.safe.global. Everything you need is right there!
CI Steps: We’ve put together some pretty great CI steps that are working well for us. This involves running Foundry tests, checking out Slither and Echidna gates, and using Tenderly to simulate bundles before we send them out to those important flows. Oh, and just to add, we always double-check everything on Etherscan. We also take care of SBOM and Cosign attestation, so you can rest easy knowing it's all in good hands! If you want to dive deeper into the details, just head over to this link: docs.tenderly.co. Happy exploring!
Keys: Keeping things secure is super important to us! We’ve set up a relayer signer using cloud KMS and OIDC, plus we've got an admin multisig in Safe for that extra layer of protection. We don’t store any private keys during the CI process, not at all. If you’re looking for more details, check out the official AWS documentation here. It's got everything you need!
Upgrades: With UUPS proxies and a Timelock owner in the mix, upgrading is super simple! Our Guardian Safe can totally hit pause whenever you need it to. Oh, and just a little reminder--we’ve added allowlist flags for any new features we introduce. So keep an eye out for those! Want to dive deeper? Check it out right here: docs.openzeppelin.com. You'll find all the info you need!

B. Enterprise protocol with multiple upgradable modules

Architecture: I’d suggest going with Diamond (ERC‑2535) for some awesome modularity! It really makes things flexible and easy to manage. If you're more comfortable with the familiar, using a bunch of UUPS proxies for each module might just be the best route for a hassle-free audit experience. (eips.ethereum.org).
Governance: Get it all set up with a Governor, Timelock, and a Safe. So, upgrade proposals get lined up and carried out by the timelock, while we've made sure to keep the emergency canceller role separate. (docs.openzeppelin.com).
Keys: Make sure to utilize HSM for managing your treasury and handling timelock admin stuff. If you're looking at options for bots, KMS is definitely a strong pick. And if you're feeling up for it, you might want to consider adding optional MPC for your hot or warm wallets. Just a heads-up, though--make sure you choose a vendor that's been audited to keep things secure! (docs.aws.amazon.com).
Monitoring/Sim: Take a look at Tenderly's node/Sim API! It’s super handy for running “dry-runs” on upgrades. Plus, it lets you go back and replay any production transactions that didn’t go through, with some state tweaks if you need to. And hey, just a quick reminder: we've got alerts in place that will notify PagerDuty if anything goes wrong. So, no worries!
(docs.tenderly.co).
Runbooks: Don’t forget to have solid documentation in place for the “revert facet/impl” and “data patch” procedures. It's super important to include pre-frozen implementation addresses and make sure you have your scripts ready to go!

6) Practical snippets you’ll actually reuse

Hardhat verify + programmatic call

import hre from "hardhat";
import { verifyContract } from "@nomicfoundation/hardhat-verify/verify";

await verifyContract({
  address: "0xYourProxyOrImpl",
  constructorArgs: ["arg1"],
  provider: "etherscan",
}, hre);

This is pretty much like the verify task and works on platforms like Etherscan, Blockscout, and Sourcify. Feel free to take a look at it here. You'll find some useful info!

Foundry verify

forge verify-contract \
  --watch --chain mainnet \
  0xYourAddress src/My.sol:My \
  --verifier etherscan --etherscan-api-key $ETHERSCAN_KEY

With Foundry, verifying across multiple chains is a breeze! Thanks to Etherscan V2, you can streamline the process, and if you have specific needs, you can even set up your own custom verifier URLs. How cool is that? If you want to dive into the details, just click here. Happy exploring!

Safe CLI in CI for approval/proposals

docker run -it --rm safeglobal/safe-cli safe-cli 0xYourSafe $RPC_URL <<'EOF'
# inside CLI: propose tx to upgrade proxy via ProxyAdmin
EOF

If you’re doing direct chain operations, just go with “blockchain mode.” But when the Safe Transaction Service is live, flip over to “tx-service mode.” Simple as that! Hey, just wanted to give you a quick heads up! There are some changes rolling out in 2025 that will affect API authentication and rate limits. So, keep an eye out for that! Feel free to take a look at it right here: pypi.org. You'll find all the details you need!

Timelock wiring reminder

So here's the deal: the timelock proposer is basically the Governor. The executor can be anyone (it could even be the Governor again), and the admin? That's the timelock itself. Simple enough, right? Don’t forget to set the proxy ownership to the timelock, okay? It's definitely a smart move to avoid keeping admin privileges on externally owned accounts (EOAs). For all the nitty-gritty details, make sure to swing by the OpenZeppelin docs. You'll find everything you need there!

7) Risk checklist we use at 7Block Labs before mainnet cutover

Hey! Just wanted to give you a quick update. The storage layout differences are all neat and tidy, and the Slither report on upgradeability is looking solid too. There are a few gas and performance regressions, but no worries--they're still within our Service Level Objectives. All in all, things are looking pretty good! (github.com). Hey there! Just wanted to share that we've run some simulations on the 7702 type-4 and 4337 user operations, and guess what? The paymaster web service is working smoothly with ERC-7677! (eips.ethereum.org).

We've got a rollback bundle all set and ready to roll! We've taken a look at the earlier setup and the addresses for the facets. Plus, we’ve got everything ready for the pause and “revert upgrade” transactions for both Safe and Timelock.
When it comes to keys and signers, we're rolling with OIDC-based KMS authentication straight from CI. We’re keeping the admin keys secure in the HSM/Safe, and we’ve put a whitelist in place for the relayer receiver. (docs.aws.amazon.com). We've set up the explorer verification process, and all our artifacts are now backed by Cosign. On top of that, we've also archived the SBOM. (blog.sigstore.dev). So, we just finished up the audit on SELFDESTRUCT usage, and guess what? There’s no sign of any being used at all! That’s some great news! (eips.ethereum.org).

Closing thought

The 2025 baseline isn’t just about throwing a contract out there and crossing your fingers. It's really important to have some solid automated safety checks for upgrades. You know, running those pre-broadcast simulations helps a lot too. Using short-lived credentials in KMS/HSM is a good move, and don't forget about adding multisig and AA guardrails to keep everything secure. And of course, having a clear rollback plan is crucial! Just make sure it doesn’t depend on reusing addresses. If you stick to these blueprints and snippets, you’ll be able to get things done quicker and dodge those annoying 3 am emergencies.

Hey there! If you’re in need of a fresh perspective on your pipeline or some support getting ready for a production rollout, 7Block Labs has got your back. We’re all about helping you build the perfect stack you discovered here. Just let us know how we can help!

Sources and references

Hey, don’t miss out on the latest info about the Ethereum Pectra mainnet activation! You’ll want to dive into how EIP‑7702 operates and get the lowdown on type‑4 transactions. It’s all pretty fascinating stuff! (blog.ethereum.org). So, EIP-6780 is really stirring the pot with some tweaks to the SELFDESTRUCT function, and it's definitely going to change the game for address-reuse patterns. Check out the complete story right here! (eips.ethereum.org). Hey everyone! I’ve got some news about EIP-7623 that’s worth sharing. It’s all about the calldata cost floor and what that means for us moving ahead.
Feel free to explore for more info! (eips.ethereum.org). Hey there! If you're diving into Hardhat or Foundry, you'll be happy to know that OpenZeppelin has rolled out some cool new upgrade plugins and fresh documentation. Plus, they've got some really useful proxy patterns that you should definitely take a look at. It's worth your time! (docs.openzeppelin.com). Hey folks! I've got some pretty exciting updates to share about the Safe{Core} SDK and the Transaction Service. We've made a few tweaks to the API recently, and I think you're really going to like what we've done! Check it out right here! (docs.safe.global). Hey, make sure you keep an eye out for the latest updates on ERC‑6900! It’s all about modular accounts and account abstraction modularity, and trust me, you won't want to miss it. There's some really cool information on that page! Check it out here. Hey there! Just wanted to share that Slither has introduced some cool upgradeability checks, and they’ve also launched the new Echidna fuzzer. Exciting stuff! You should definitely check this out! Just take a peek at it over at GitHub. Trust me, it’s worth your time! Tenderly has rolled out some cool updates to their Simulation APIs, like state overrides and bundles. Hey, have you seen the latest RPC features? You should totally check them out! Just head over to docs.tenderly.co to dive in. Hey! So, Hardhat and Foundry are definitely making waves with their verification processes lately. Oh, and by the way, Etherscan has some updated docs that could be pretty useful! Get the scoop! (hardhat.org). Hey there! Just wanted to share some news: Sigstore has rolled out Cosign 3. 0, and we're throwing GitHub artifact attestations into the equation. Want to dive deeper? Check this out! (blog.sigstore.dev). Hey there! If you're into Key Management Services or Hardware Security Modules, you should definitely take a look at AWS’s KMS and CloudHSM--they've got secp256k1 covered. Also, don’t miss out on Azure Key Vault’s ES256K, the Vault plugin, and YubiHSM 2 FIPS. There’s a lot of cool stuff to explore! There's a ton of info packed into this link! Check it out: AWS Documentation. It’s super useful if you're diving into asymmetric key specs! If you're into MPC, you're in for a treat! There are some really cool implementations and papers out there, like Fireblocks’ MPC-CMP and what Coinbase has been working on. Definitely worth checking out! Check it out! You can find it on GitHub right here: github.com. Happy reading!

Heads up: Just a quick note that OpenZeppelin Defender is gearing up for a managed sunset, and it looks like the final shutdown is scheduled for July 1, 2026. Hey, if you haven't already, now's a great time to start thinking about migrating to their open-source Relayer/Monitor. It's worth checking out other options too! If you're curious to dive deeper, you can find more info here. Happy reading!