{"id":5048,"date":"2025-08-01T13:32:19","date_gmt":"2025-08-01T13:32:19","guid":{"rendered":"https:\/\/2miners.com\/blog\/?p=5048"},"modified":"2025-08-01T13:33:06","modified_gmt":"2025-08-01T13:33:06","slug":"july-2025-work-progress-zen-shutdown","status":"publish","type":"post","link":"https:\/\/2miners.com\/blog\/july-2025-work-progress-zen-shutdown\/","title":{"rendered":"July 2025 Work Progress: ZEN Shutdown"},"content":{"rendered":"<p>July 2025 has been an intense month for the mining community. We\u2019ve seen the end of an era with Horizen\u2019s departure, major infrastructure upgrades from Flux, and another round of reward reductions. Below is a detailed overview of what happened this month at 2Miners.<\/p>\n<p><!--more--><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/2miners.com\/blog\/wp-content\/uploads\/2019\/08\/Frame.png\" alt=\"July Work Progress Report\" width=\"700\" height=\"400\" class=\"alignnone size-full wp-image-1789\" data-wp-pid=\"1789\" srcset=\"https:\/\/2miners.com\/blog\/wp-content\/uploads\/2019\/08\/Frame.png 700w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2019\/08\/Frame-300x171.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\n<h2>Horizen (ZEN) Mining Ends \u2013 Pool Shutdown Completed<\/h2>\n<p>On <strong>July 22, 2025<\/strong>, mining of <strong>Horizen (ZEN)<\/strong> officially ended on 2Miners. This followed the project\u2019s announcement of a major transition to the <strong>Base network (an Ethereum Layer 2 solution)<\/strong>. As part of this strategic shift, the Horizen blockchain ceased operations at <strong>block 1,807,300<\/strong>, on <strong>July 23 at 6:00 UTC<\/strong>.<\/p>\n<p>Our <strong>ZEN mining pool was shut down on July 22 at 12:00 UTC<\/strong> to allow for all final payouts to be processed before the hard fork.<\/p>\n<p><strong>Final payouts were sent to all miners successfully.<\/strong><\/p>\n<p>We are saddened by this abrupt change \u2014 the decision to migrate came as a surprise to us and the community. You can read more about Horizen&#8217;s upgrade on their <a href=\"https:\/\/www.horizen.io\/horizen-upgrade\" target=\"_blank\">official announcement page<\/a>.<\/p>\n<p>If you&#8217;re looking for an alternative Equihash coin to mine, we strongly recommend <strong>Zcash (ZEC)<\/strong>. BTC payouts are available!<\/p>\n<ul>\n<li><strong>Pool:<\/strong> <a href=\"https:\/\/zec.2miners.com\">zec.2miners.com<\/a><\/li>\n<li><strong>Solo:<\/strong> <a href=\"https:\/\/solo-zec.2miners.com\">solo-zec.2miners.com<\/a><\/li>\n<\/ul>\n<h2>Flux v8.0.0 \u2013 Major Node Upgrade<\/h2>\n<p>The Flux development team has released <strong>Flux Daemon v8.0.0<\/strong>, a major upgrade that brings important structural changes ahead of the upcoming <strong>v9 fork<\/strong> planned for Q4 2025.<\/p>\n<p><strong>Key changes include:<\/strong><\/p>\n<ul>\n<li><strong>Block reward halving has been removed<\/strong> to stabilize node operations prior to the v9 upgrade.<\/li>\n<li><strong>Support for 32-bit systems has been discontinued<\/strong>. Builds for i386 will no longer be provided.<\/li>\n<li><strong>Improved chain analysis<\/strong> with getchaintips RPC now supporting block height filters for faster queries.<\/li>\n<li><strong>GitHub Actions<\/strong> CI\/CD integration replaces legacy CI systems for better automation, testing, and artifact management.<\/li>\n<li><strong>Cross-compilation improvements<\/strong> for ARM64 and Windows binaries, including toolchain updates and fix for binary stripping.<\/li>\n<li><strong>New Arcane Mode<\/strong> added with fArcane flag for advanced testing and benchmarking scenarios using UNMANAGED_FLUXBENCHD.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/2miners.com\/blog\/wp-content\/uploads\/2022\/05\/happy_miner.jpg\" alt=\"happy_miner\" width=\"1422\" height=\"800\" class=\"alignnone size-full wp-image-3963\" data-wp-pid=\"3963\" srcset=\"https:\/\/2miners.com\/blog\/wp-content\/uploads\/2022\/05\/happy_miner.jpg 1422w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2022\/05\/happy_miner-300x169.jpg 300w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2022\/05\/happy_miner-1024x576.jpg 1024w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2022\/05\/happy_miner-768x432.jpg 768w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2022\/05\/happy_miner-1200x675-cropped.jpg 1200w\" sizes=\"auto, (max-width: 1422px) 100vw, 1422px\" \/><\/p>\n<p>This release lays the groundwork for major architectural changes expected in Flux v9. All node operators are strongly encouraged to upgrade as soon as possible.<\/p>\n<h2>Block Reward Reduction<\/h2>\n<h3>ERGO (ERG)<\/h3>\n<p>In accordance with the official <strong>Ergo Tokenomics<\/strong> and <strong>Emission Schedule<\/strong>, the block reward has been reduced.<\/p>\n<ul>\n<li><strong>Previous reward:<\/strong> 15 ERG<\/li>\n<li><strong>New reward:<\/strong> 12 ERG<\/li>\n<\/ul>\n<h3>KASPA (KAS)<\/h3>\n<p>Another planned reduction in the <strong>Kaspa emission schedule<\/strong> has occurred as part of the Kaspa Crescendo Hard Fork process.<\/p>\n<ul>\n<li><strong>Previous reward:<\/strong> 5.19 KAS<\/li>\n<li><strong>New reward:<\/strong> 4.90 KAS<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/2miners.com\/blog\/wp-content\/uploads\/2024\/05\/miner.jpg\" alt=\"\" width=\"1280\" height=\"720\" class=\"alignnone size-full wp-image-4858\" data-wp-pid=\"4858\" srcset=\"https:\/\/2miners.com\/blog\/wp-content\/uploads\/2024\/05\/miner.jpg 1280w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2024\/05\/miner-300x169.jpg 300w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2024\/05\/miner-1024x576.jpg 1024w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2024\/05\/miner-768x432.jpg 768w, https:\/\/2miners.com\/blog\/wp-content\/uploads\/2024\/05\/miner-1200x675-cropped.jpg 1200w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3>Karlsen (KLS)<\/h3>\n<p>Karlsen block rewards have been reduced in line with the <strong>Karlsencoin Emission Schedule<\/strong>.<\/p>\n<ul>\n<li><strong>Previous reward:<\/strong> 30.56 KLS<\/li>\n<li><strong>New reward:<\/strong> 29.71 KLS<\/li>\n<\/ul>\n<p>As always, check <a href=\"https:\/\/2cryptocalc.com\/\">2CryptoCalc<\/a> to see up-to-date profitability and plan your strategy accordingly.<\/p>\n<p>That wraps up the key events of July 2025. Follow us on <a href=\"https:\/\/x.com\/pool2miners\" target=\"_blank\">X (Twitter)<\/a> and join our <a href=\"https:\/\/t.me\/chat2miners\" target=\"_blank\">Telegram community<\/a> for instant updates and support.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>July 2025 has been an intense month for the mining community. We\u2019ve seen the end of an era with Horizen\u2019s departure, major infrastructure upgrades from Flux, and another round of reward reductions. Below is a detailed overview of what happened this month at 2Miners.<\/p>\n","protected":false},"author":4,"featured_media":1789,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5048","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>July 2025 Work Progress: ZEN Shutdown - Crypto Mining Blog<\/title>\n<meta name=\"description\" content=\"July 2025 has been an intense month for the mining community. 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We\u2019ve seen the end of an era with Horizen\u2019s departure, major infrastructure upgrades from","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/2miners.com\/blog\/july-2025-work-progress-zen-shutdown\/","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/2miners.com\/blog\/july-2025-work-progress-zen-shutdown\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/2miners.com\/blog\/"},{"@type":"ListItem","position":2,"name":"July 2025 Work Progress: ZEN Shutdown"}]}]}},"_links":{"self":[{"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/posts\/5048","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/comments?post=5048"}],"version-history":[{"count":9,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/posts\/5048\/revisions"}],"predecessor-version":[{"id":5050,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/posts\/5048\/revisions\/5050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/media\/1789"}],"wp:attachment":[{"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/media?parent=5048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/categories?post=5048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2miners.com\/blog\/wp-json\/wp\/v2\/tags?post=5048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}