Announcing Octez v25.0

Project Updates
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:megaphone: Octez version 25.0 has just been released!

Octez v25.0 includes the following changes:

  • Protocol support for Ushuaia. Version 25 is compatible with all protocols that depend on a protocol environment version up to V16. That includes the Ushuaia protocol proposal, which is currently undergoing the Adoption period of the on-chain governance mechanism.

As a reminder, the Ushuaia protocol upgrade will activate on Tezos mainnet at the end of cycle 1277, expected on June 29th.

  • Deprecation of Octez Ubuntu/Debian distribution packages. Starting with v25, installing Octez Debian/Ubuntu binary distribution packages will display a deprecation warning. Linux distribution packages will be removed in v26.
    The experimental octez-manager tool (see https://octez-manager.tezos.com) handles installation, configuration, and deployment of static binaries in a more user-friendly way. This tool is in early development and should be used for testnets only for now.

  • Baker: removal of the adaptive issuance vote. Octez v25 removes the --adaptive-issuance-vote CLI option and the adaptive_issuance_vote field from per_block_votes.json. Both were deprecated in v24 and have no effect since Paris activated Adaptive Issuance. If your per_block_votes.json still contains adaptive_issuance_vote, the v25.0 baker will reject it at startup. Please remove that field before upgrading.

Additionally, v25.0 includes the following changes compared to v25.0~rc1:

  • RPC client bugfix. Fixed a file descriptor leak: connections opened for HTTP redirects were never released, affecting all Octez executables issuing RPC calls through an endpoint with redirects (e.g., behind a reverse proxy).

  • DAL node. Added a --skip-shards flag to the snapshot export and snapshot import commands. When set, shards are neither exported nor imported, producing smaller snapshots for nodes that only need slot data.

:package: Distribution details

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Note on Ubuntu packages

Starting from Octez v25, the Ubuntu APT repository is named after the

distribution version number instead of its codename:

  • ubuntu/jammy becomes ubuntu/22.04

  • ubuntu/noble becomes ubuntu/24.04

  • ubuntu/26.04 is newly supported

If you installed Octez v24 (or earlier) from the APT repository, the old

codename-based path is no longer updated. Running apt-get update and

apt-get upgrade will therefore not upgrade you to v25 until you repoint the

repository to the new version-number-based path.

To upgrade, set the release to your Ubuntu version number and re-add the
repository:

  export distribution=ubuntu
  export release=24.04  # or 22.04, 26.04

then follow the install instructions to refresh

/etc/apt/sources.list.d/octez.list, and finally run::

  sudo apt-get update
  sudo apt-get upgrade

Debian users are not affected: the Debian repository keeps using codenames

(debian/trixie, debian/bookworm).

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