# PSA: update nodes for NU 6.1 testnet activation

**URL:** <https://forum.zcashcommunity.com/t/psa-update-nodes-for-nu-6-1-testnet-activation/51881>\
**Category:** Ecosystem Updates\
**Created:** [August 8, 2025, 5:04pm UTC](https://forum.zcashcommunity.com/t/psa-update-nodes-for-nu-6-1-testnet-activation/51881 "2025-08-08T17:04:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![conradoplg](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/conradoplg/32/42878_2.png) [@conradoplg](https://forum.zcashcommunity.com/u/conradoplg)\
**Post date:** [August 8, 2025, 5:04pm UTC](https://forum.zcashcommunity.com/t/psa-update-nodes-for-nu-6-1-testnet-activation/51881/1 "2025-08-08T17:04:13Z")

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ZF released [zebra 2.5.0](https://github.com/ZcashFoundation/zebra/releases/tag/v2.5.0) with NU 6.1 testnet support; ECC released [zcashd 6.3.0](https://github.com/zcash/zcash/releases/tag/v6.3.0) last week. If you run a testnet node please update soon. Activation currently expected to happen early monday UTC (2025-08-11T06:34:18) and it has been consistently moving earlier due to increase in hashing power.

cc @Cacho to update the block explorer

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**Author:** ![Cacho](https://avatars.discourse-cdn.com/v4/letter/c/8edcca/32.png) [@Cacho](https://forum.zcashcommunity.com/u/Cacho)\
**Post date:** [August 8, 2025, 6:08pm UTC](https://forum.zcashcommunity.com/t/psa-update-nodes-for-nu-6-1-testnet-activation/51881/2 "2025-08-08T18:08:48Z")

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Thanks for the reminder. It is pointing to the latest version now.

 ![image](https://global.discourse-cdn.com/zcash/original/3X/5/c/5ce9ae33845f6e0b52b508c394760ae8fb702e6d.png)