# Releasing version 11.0 of Octez
**URL:** https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893
**Category:** Research and Development
**Created:** [November 15, 2021, 1:00pm UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893 "2021-11-15T13:00:08Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@NomadicLabs](https://forum.tezosagora.org/u/NomadicLabs)
#### Post date: [November 15, 2021, 1:00pm UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893/1 "2021-11-15T13:00:08Z")
Version 11.0 of Octez has just been released.
There is no significant change compared to 11.0~rc2.
**This version contains a user-activated protocol override for Mainnet that tells the node to use Hangzhou2 instead of Hangzhou, if Hangzhou were to be activated.** Hangzhou contains a number of critical bugs that are fixed in Hangzhou2. Version 11.0 also comes with Hangzhou2 and its baker, endorser and accuser.
The vote for the promotion of Hangzhou is currently ongoing on Mainnet. It ends on November 19th.
Full changelog and update instructions are available in the version 11 release page: [Version 11.0 — Tezos (master branch, 2021/11/15 12:21) documentation](http://tezos.gitlab.io/releases/version-11.html)
The Git tag for this release is `v11.0` and the corresponding commit hash is `0e7a0e9a67a381916b8e23cd704f43ac4d770920` . Branch `latest-release` now points to this new tag.
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### Author:  [@Milfont](https://forum.tezosagora.org/u/Milfont)
#### Post date: [November 19, 2021, 1:45am UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893/2 "2021-11-19T01:45:48Z")
Sirs, I am receiving the following error when compiling it on Debian Linux:
[ERROR] The compilation of bls12-381-unix failed at “/home/user/.opam/opam-init/hooks/sandbox.sh build dune build -j
7 -p bls12-381-unix @install”.
Tried the solution described on this page ( ["Rule failed to generate the following targets" with virtual package - githubmemory](https://githubmemory.com/repo/ocaml/dune/issues/4195) ) but it did not work.
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### Author:  [@Milfont](https://forum.tezosagora.org/u/Milfont)
#### Post date: [November 30, 2021, 11:41am UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893/3 "2021-11-30T11:41:15Z")
Please, do anyone have an answer for this issue? Still can’t compile vesion 11.0 of Octez on Debian Linux. Any help will be appreciated!
Thanks,
Luiz.
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### Author:  [@Stuggesjoerd](https://forum.tezosagora.org/u/Stuggesjoerd)
#### Post date: [December 1, 2021, 10:29pm UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893/4 "2021-12-01T22:29:39Z")
I have no experience with the matter. But I saw a post of someone having a written how-to for the upcoming update. Maybe you can find more info there?
> **[r/tezos - Testing Tezos Protocol Migrations (before they happen on Mainnet)](https://www.reddit.com/r/tezos/comments/r52u5m/testing_tezos_protocol_migrations_before_they/)**
>
> 31 votes and 1 comment so far on Reddit
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### Author:  [@daachi](https://forum.tezosagora.org/u/daachi)
#### Post date: [December 1, 2021, 10:29pm UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893/5 "2021-12-01T22:29:45Z")
I’m having similar issues, albeit on FreeBSD. It’s _very frustrating_ that this package was updated at the 11th hour w/o sufficient testing in place. There are pretty significant changes taking place in the bls12-381 package and it should not be considered stable.
Additionally, the “unix” split utilizes a GNU `ld` flag that is Linux specific. Very ironic.
I’ve put [this issue](https://gitlab.com/dannywillems/ocaml-bls12-381/-/issues/50) in which is now a month old but, as far as I can tell, has received no attention.
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### Author:  [@Milfont](https://forum.tezosagora.org/u/Milfont)
#### Post date: [December 1, 2021, 11:22pm UTC](https://forum.tezosagora.org/t/releasing-version-11-0-of-octez/3893/6 "2021-12-01T23:22:35Z")
As I could not compile in my Debian system, I decided to download binaries.