{"id":16276,"date":"2020-05-04T22:47:00","date_gmt":"2020-05-04T22:47:00","guid":{"rendered":"https:\/\/hederav2stg.wpenginepowered.com\/blog\/network-upgrade-communications-a-new-previewnet-ip-proxies-and-tls-support\/"},"modified":"2025-12-10T04:59:00","modified_gmt":"2025-12-10T04:59:00","slug":"network-upgrade-communications-a-new-previewnet-ip-proxies-and-tls-support","status":"publish","type":"post","link":"https:\/\/hedera.com\/blog\/network-upgrade-communications-a-new-previewnet-ip-proxies-and-tls-support\/","title":{"rendered":"Network upgrade communications, a new previewnet, IP proxies, and TLS support"},"content":{"rendered":"<div class=\"body-text BodyCopy mb-40 style-1\">\n<p><em><em>Note: this blog post was updated on March 16, 2023.<\/em><\/em><\/p>\n<p>We appreciate feedback from the Hedera developer community and strive to do what\u2019s best for those using Hedera software and tools. We recently received feedback about early access to Hedera test network functionality and how we communicate testnet and mainnet network status and upgrades. We\u2019re excited to share how we&#8217;ve planned to address this feedback moving forward. <\/p>\n<p>In addition, we want to share more detailed information with you about the state of Hedera\u2019s mainnet nodes and node software release v0.5.0 \u2014 specifically, the addition of IP proxies and TLS 1.2 &amp; 1.3 support for additional network security and client privacy.<\/p>\n<h4 class=\"color-ultraviolet\">Hedera network status communications &amp; a new previewnet<br \/>\n<\/h4>\n<p>The developer community has expressed interest in early access to new network features and functionality, prior to their availability on the Hedera testnet and mainnet. In response, Hedera has made the decision to operate two publicly accessible test networks: <\/p>\n<ul>\n<li>A \u201cstable\u201d testnet (testnet-stable) which runs the same code as the Hedera mainnet, designed to provide a pre-production environment for developers about to move to mainnet.<\/li>\n<li>A \u201cpreview\u201d testnet (testnet-preview) which uses code under development by the Hedera team, and likely to be used in an upcoming release, designed to give developers early exposure to features coming down the pipe.<\/li>\n<\/ul>\n<p>\nBoth the \u201cstable\u201d and \u201cpreview\u201d testnets will be composed of four nodes operated by Hedera in Google Cloud, publicly accessible, and using the same <a href=\"https:\/\/docs.hedera.com\/hedera\/networks\/mainnet#network-throttles\">throttles<\/a> as the mainnet. A mirror node will be available by Hedera for both networks. Accounts can be created for the preview testnet in the developer portal at portal.hedera.com. We expect the previewnet to go live in May. <\/p>\n<p>We\u2019ve also implemented new internal rules and communication processes for planned testnet and mainnet downtime. Hedera&#8217;s mainnet software roadmap includes rolling upgrades by late 2020 but, until then, any codebase-related network upgrades require downtime and a subsequent restart. The developer community has expressed the need for earlier and more consistent communication across all channels when this happens.\n<\/p>\n<p>To ensure our developer community has an adequate amount of time to adapt application code (if necessary), Hedera has decided that all upgrades\/planned downtime for the testnet and mainnet will require a 5 business days&#8217; notice and communications. The communications will include a link to the release notes in the Hedera docs before it\u2019s deployed, for detailed information about the upcoming release. The source of truth for network status and planned network upgrades for Hedera\u2019s mainnet, testnet, and soon, preview testnet, will always be available at <a href=\"https:\/\/status.hedera.com\/\">https:\/\/status.hedera.com<\/a> \u2014 you can email subscribe or use the RSS feed link for live status updates. Hedera will also provide updates in the #network-status channel in the <a href=\"https:\/\/hedera.com\/discord\">Hedera developer Discord<\/a>.<\/p>\n<p>Whenever upgrades occur on the testnet or previewnet, developers who created their account through the Hedera Portal will receive an email notice of the network upgrade. In some cases (more likely on the previewnet), this means old account IDs are purged and you\u2019ll receive a new account ID and associated keys \u2014 the email notice will contain your new account ID, public key, and private key to get back up and running more smoothly. Those keys will also be available in the Hedera Portal, after logging in. <\/p>\n<h4 class=\"color-ultraviolet\">Hedera mainnet nodes and decentralization update<br \/>\n<\/h4>\n<p>Hedera&#8217;s mission is to become the most decentralized and utilized public network at scale in the market. We measure decentralization in the following ways:\n<\/p>\n<ul>\n<li>Off-chain governance by the Hedera <a href=\"https:\/\/www.hedera.com\/council\">Governing Council<\/a>, with their individual votes signed on-chain.<\/li>\n<li>Network utilization by businesses and application developers.\n<\/li>\n<li>Ownership and operation of nodes by independent organizations (today).\n<\/li>\n<li>Permissionless node operation by non-Council members (eventually).<\/li>\n<li>Widespread hbar distribution for proof-of-stake network. <\/li>\n<\/ul>\n<p>The Hedera mainnet today consists of 13 nodes \u2014 4 of which are operating in Google Cloud and managed by Hedera but controlled by individual council members. The 9 other nodes are running in unique hosting providers (Centrilogic, HiVelocity, MassiveGrid, Digital Ocean, Linode, Microsoft Azure, Equinix, IBM Cloud and Tata Communications\u2019 corporate data center). During the next mainnet upgrade (v0.5.0 set for May 12th), one of the Hedera GCP nodes will be replaced by an independent node in GCP managed by Google. <\/p>\n<h4 class=\"color-ultraviolet\">Implementing IP proxies on testnet and mainnet for DoS mitigation<br \/>\n<\/h4>\n<p>You may already know that the underlying hashgraph algorithm is natively DDoS resistant through its \u201cleaderless\u201d system \u2014 and the Hedera network assists further with DoS and DDoS resistance via fees paid in HBAR per every transaction, making it expensive for an attack to persist. <\/p>\n<p>But with the Hedera network still in its infancy, having additional protections in place for node operation will ensure a safe path towards permissioned expansion and, eventually, our goal of a fully permissionless network. For this reason,\u00a0the Hedera Council\u2019s Technical Steering &amp; Product Committee* has approved the decision to place proxies in front of testnet and mainnet nodes. The purpose of implementing proxies are to protect individual nodes from Denial of Service attack, while having zero impact on consensus within the network or between the nodes. <\/p>\n<p>These proxies will be deployed to the stable testnet v0.5.0 release on May 5th and mainnet v0.5.0 release on May 12th. These proxies will be distributed across three cloud environments (Google Cloud, AWS, and Microsoft Azure), per each node (39 proxies total). They\u2019ll be fully controlled by Hedera today \u2014 but full control and ownership will be passed to every council member node operator individually no earlier than v0.7.0 of the Hedera node software, to continue forging our path towards decentralization. Hedera Governing Council members joining the network today will be required to stand up proxies, which they will singularly control after the transition period of co-control**,\u00a0within their existing environment and geography, as to ensure consistent network performance.<\/p>\n<p>The addresses for these proxies are listed in the Hedera documentation (docs.hedera.com), as well as in the address book file (0.0.101) stored on the network. With the upcoming v0.5.0 update, you\u2019ll need to ensure your applications are pointing to this updated address book.<\/p>\n<h4 class=\"color-ultraviolet\">Certificate hash to enable TLS 1.2 &amp; 1.3<br \/>\n<\/h4>\n<p>TLS (transport layer security) is a foundational security and privacy standard ubiquitous on the modern web. We\u2019re excited to announce that v0.5.0 of the Hedera network software will include native support for TLS 1.2 and 1.3. Although Hedera is a public network and ultimately messages\/transactions (encrypted or not) end up on the Hedera public ledger, TLS allows users to prevent eavesdropping on their connection to the mainnet, and prevents attackers from modifying messages they receive. We encourage all users to take advantage of this new security functionality.<\/p>\n<p>The address book file starting in v0.5.0 includes a certificate hash to enable clients to optionally use TLS. They can verify the certificate for the connection against the certificate hash stored in the network address book. Any Hedera node running network software v0.5.0 will support TLS through port 50212. The Hedera <a href=\"http:\/\/docs.hedera.com\/\">documentation<\/a> will explain how to set this up, upon release of v.0.5.0 to the testnet Tuesday, May 5th, 2020.<\/p>\n<p dir=\"ltr\">* Updated to clarify that TechCom, not the Hedera Governing Council overall, voted to approve the introduction of proxies.<\/p>\n<p dir=\"ltr\">** Updated to clarify that Hedera staff and contractors also have access to the proxies of new Council members.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>We received feedback from the Hedera community about early access functionalities and communications for network upgrades. We\u2019re excited to share how we&#8217;re addressing that feedback while also discussing the state of Hedera\u2019s mainnet nodes, including the addition of IP proxies and TLS support for security and privacy.<\/p>\n","protected":false},"author":10,"featured_media":17840,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[1],"tags":[],"ppma_author":[43],"class_list":["post-16276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Network upgrade communications, a new previewnet, IP proxies, and TLS support | Hedera<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hedera.com\/blog\/network-upgrade-communications-a-new-previewnet-ip-proxies-and-tls-support\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Network upgrade communications, a new previewnet, IP proxies, and TLS support | Hedera\" \/>\n<meta property=\"og:description\" content=\"We received feedback from the Hedera community about early access functionalities and communications for network upgrades. 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