![\"Zcash](\"https:\/\/s3-images.ctmedia.io\/media\/article-covers\/2026\/10\/01M452HAFP4NA562P7Y8XFANP1\/testing.png\")
<\/figure>\nThe transition marks a significant moment in the ongoing evolution of the Zcash network. NU7 stands as the next major network upgrade for the protocol, introducing several core technical changes designed to enhance network performance, streamline transaction processing, and ensure long-term economic sustainability. Among the most notable modifications included in the upgrade is a dramatic reduction in the network’s target block spacing, which will shift from the current 75-second intervals down to just 25 seconds. This threefold acceleration in block generation is intended to significantly improve transaction confirmation times for users interacting with the network.<\/p>\n
In addition to faster blocks, the NU7 upgrade implements critical structural updates to how transactions are handled on the blockchain. Specifically, the protocol update disables version 4 transactions entirely. This change carries substantial implications for users who continue to hold funds within Zcash\u2019s legacy Sprout shielded pool. Because version 4 transactions are being phased out, any ZEC currently residing in the Sprout shielded pool will become entirely unspendable unless holders actively migrate their funds to newer, supported shielded pools before the NU7 upgrade achieves full activation on the mainnet.<\/p>\n
Furthermore, NU7 integrates the Network Sustainability Mechanism, a feature engineered to redirect a portion of network transaction fees directly into future block rewards. This mechanism is designed to bolster the economic security of the network over the long term by incentivizing miners and supporting the continuous issuance model of the cryptocurrency.<\/p>\n Ahead of the testnet activation, the Zcash Foundation released a statement on Friday urging testnet operators and community developers to deploy the latest release candidate to evaluate NU7 under real-world conditions. This testing period is designed to give the development community several weeks to monitor network stability, assess the reliability of the 25-second block times, and identify any potential bugs or unforeseen complications before committing the code to the mainnet.<\/p>\n The insights gathered during this testnet phase will directly inform the final decision-making process for core developers. According to the current project timeline, Zcash developers are scheduled to convene on October 20 to make a definitive determination regarding mainnet activation. During this meeting, the team will review the performance metrics from the testnet and officially set the activation height for the mainnet rollout, which is tentatively targeted for November 5. <\/p>\n As the developer community monitors the behavior of the network over the coming weeks, stakeholders across the ecosystem are encouraged to review the technical documentation and ensure that any legacy funds remaining in older shielded pools are transitioned securely well ahead of the anticipated November activation date.<\/p>\n","protected":false},"excerpt":{"rendered":" Zcash has officially advanced its anticipated NU7 network upgrade to the testnet phase, providing developers…<\/p>\n","protected":false},"author":4,"featured_media":1341,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[604],"tags":[937,607,1253,1275,105,605,100,612,633,1254,211,634,995,936,635,625,606],"class_list":["post-1342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-identity-privacy","tag-ahead","tag-cryptography","tag-enters","tag-final","tag-goes","tag-identity","tag-live","tag-mainnet","tag-november","tag-phase","tag-privacy","tag-target","tag-testing","tag-testnet","tag-upgrade","tag-zcash","tag-zero-knowledge"],"_links":{"self":[{"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=\/wp\/v2\/posts\/1342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1342"}],"version-history":[{"count":0,"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=\/wp\/v2\/posts\/1342\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=\/wp\/v2\/media\/1341"}],"wp:attachment":[{"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartcryptosecurity.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Zcash](\"https:\/\/cointelegraph.com\/assets\/newsletters\/1-min-letter.png\")
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