# TestNet and MainNet Update: 3.7.2 **URL:** \ **Category:** Announcements\ **Tags:** testnet, mainnet\ **Created:** [June 14, 2022, 2:37pm UTC](https://forum.algorand.co/t/testnet-and-mainnet-update-3-7-2/7145 "2022-06-14T14:37:04Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![devops-service](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.algorand.co/devops-service/32/2205_2.png) [@devops-service](https://forum.algorand.co/u/devops-service)\ **Post date:** [June 14, 2022, 2:37pm UTC](https://forum.algorand.co/t/testnet-and-mainnet-update-3-7-2/7145/1 "2022-06-14T14:37:04Z")
MainNet and TestNet will be updated to 3.7.2 Tue Jun 14, 2022 10:30AM EDT (2:30PM UTC). ![GitHub Logo](https://us1.discourse-cdn.com/flex016/uploads/algorand/original/1X/fcd756bba61094f9e8774e43ec402e311aeea50e.jpeg) # Overview Bandwidth optimization for non-participating nodes and golang 1.17 upgrade. # What’s New - Non-participating nodes do not receive gossiped proposed transactions by default - Building from source now supported for M1 Mac - Golang 1.17 upgrade **Note** A new flag was added to `update.sh` that will enable checksum and signature verification on the downloaded `updater` archive with the goal that at some point in the future, this will be the default. This requires that `gpg` and `sha256sum` are available on the system to be able to perform the checks. To start using this, pass `-verify` when calling the script. If `-verify` is not explicitly passed, `update.sh` will function the same as before. # Changelog ## New Features - Build: Bump golang to 1.17.9/Mac M1 Support ([#3919](https://github.com/algorand/go-algorand/pull/3919)) ## Enhancements - Algod: Add a sourcemap flag for compile endpoint ([#3938](https://github.com/algorand/go-algorand/pull/3938)) - Algod API: Remove errant base64 docs reference ([#3982](https://github.com/algorand/go-algorand/pull/3982)) - Algokey: Add -v flag to get the version ([#4004](https://github.com/algorand/go-algorand/pull/4004)) - Build: Add install\_buildtools.sh to check\_deps.sh error message ([#3921](https://github.com/algorand/go-algorand/pull/3921)) - Ci: use tag to determine channel if possible ([#4017](https://github.com/algorand/go-algorand/pull/4017)) - Ci: add simple codecov config ([#3997](https://github.com/algorand/go-algorand/pull/3997)) - Cleanup: replace crypto.HashObj(Transaction) with Transaction.ID() ([#3958](https://github.com/algorand/go-algorand/pull/3958)) - Devops: Use Cloudflare API token instead of auth key ([#4039](https://github.com/algorand/go-algorand/pull/4039)) - Dryrun: Return EvalDeltas for failed executions in Dryrun ([#3929](https://github.com/algorand/go-algorand/pull/3929)) - Metrics: collect and report Go runtime.metrics ([#4041](https://github.com/algorand/go-algorand/pull/4041)) - Network: Non-participating Nodes Request Tx Gossip Only If Forcefetchtransactions: true ([#3918](https://github.com/algorand/go-algorand/pull/3918)) - Tealdbg: Add hidden "generate-docs" command ([#3830](https://github.com/algorand/go-algorand/pull/3830)) - Tests: Support e2e-go tests when repo is not installed in GOPATH. ([#3949](https://github.com/algorand/go-algorand/pull/3949)) - Tools: Add benchmark warnings for PRs and push graphs for commits into master ([#3998](https://github.com/algorand/go-algorand/pull/3998)) - Transaction Sync: Transition test ([#3882](https://github.com/algorand/go-algorand/pull/3882)) ## Bugfixes - Agreement: fix typo in bandwidthFilter\_test ([#4028](https://github.com/algorand/go-algorand/pull/4028)) - Ci: ensure msgp generator has been run and is clean ([#3978](https://github.com/algorand/go-algorand/pull/3978)) - Developer Tools: Add manjaro support to build script ([#3893](https://github.com/algorand/go-algorand/pull/3893)) - Dryrun: Split dryrun cost field into BudgetConsumed and BudgetAdded ([#3957](https://github.com/algorand/go-algorand/pull/3957)) - E2e Tests: Fixes for e2e test runs ([#3948](https://github.com/algorand/go-algorand/pull/3948)) - Fix: place updater in same directory as update.sh ([#3983](https://github.com/algorand/go-algorand/pull/3983)) - Metrics: update node\_exporter to support Linux diskstats ([#4047](https://github.com/algorand/go-algorand/pull/4047)) - Metrics: make metrics easier to use with prometheus ([#4020](https://github.com/algorand/go-algorand/pull/4020)) - Race Condition: Add lock around catchpointsMu to avoid race condition ([#3944](https://github.com/algorand/go-algorand/pull/3944)) - AVM: Allow app downgrades in old protocol versions ([#4086](https://github.com/algorand/go-algorand/pull/4086)) - Network: message-of-interest tiny bug fix ([#4107](https://github.com/algorand/go-algorand/pull/4107)) ## Protocol Upgrade This release does not contain a protocol upgrade. ## vFuture vFuture changes are _not_ yet available in MainNet or TestNet but can be used in private networks. ### New Features - AVM: Add bn256 pairing opcodes experimentally ([#4013](https://github.com/algorand/go-algorand/pull/4013)) ### Enhancements - AVM: base64\_decode can decode padded or unpadded encodings ([#4015](https://github.com/algorand/go-algorand/pull/4015)) - AVM: Allow immutable access to foreign app accounts ([#3994](https://github.com/algorand/go-algorand/pull/3994)) - AVM: Unify inner transaction ID calculation ([#3927](https://github.com/algorand/go-algorand/pull/3927)) - Stateproofs: New block header field - SHA256 merkle root of the transactions ([#3829](https://github.com/algorand/go-algorand/pull/3829)) - Stateproofs: fix GetProof endpoint response ([#3985](https://github.com/algorand/go-algorand/pull/3985)) * * * ## Additional Resources - [Algorand Forum](https://forum.algorand.co) - [Developer Documentation](https://developer.algorand.org) To update your current version, run the following goal command: `./update.sh -c stable -i -d -n` If you haven’t already done so, we also advise setting up a CRON job to automatically update your algorand networks. If you haven’t done this yet, you can follow the instructions here: [Install a node - Algorand Developer Portal](https://developer.algorand.org/docs/run-a-node/setup/install/#updating-node)