# Releasing Octez v12.1

**URL:** <https://forum.tezosagora.org/t/releasing-octez-v12-1/4421>\
**Category:** Research and Development\
**Created:** [March 30, 2022, 7:49pm UTC](https://forum.tezosagora.org/t/releasing-octez-v12-1/4421 "2022-03-30T19:49:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![NomadicLabs](https://forum.tezosagora.org/user_avatar/forum.tezosagora.org/nomadiclabs/32/763_2.png) [@NomadicLabs](https://forum.tezosagora.org/u/NomadicLabs)\
**Post date:** [March 30, 2022, 7:49pm UTC](https://forum.tezosagora.org/t/releasing-octez-v12-1/4421/1 "2022-03-30T19:49:41Z")

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Version 12.1 of Octez has just been released.

This version fixes a bug in the Ithaca baker that can cause it to crash. We **strongly** recommend upgrading nodes and bakers to Octez v12.1 as soon as possible!

As a reminder, the [Ithaca2 protocol upgrade](https://research-development.nomadic-labs.com/announcing-ithaca-2.html) will [activate this Friday on Tezos mainnet](https://tzstats.com/2244609), and it is **not** supported by versions of Octez older than 12.0.

Full changelog and update instructions are available [in the version 12 release page](http://tezos.gitlab.io/releases/version-12.html).

The Git tag for this release is `v12.1` and the corresponding commit hash is `fdac9000b52e3032eb5149d4e7c18ce472404f1a`.

**NB:** the Octez v12.1 release includes **one breaking change** : the Octez Tezos node [no longer stores _large_ metadata](https://tezos.gitlab.io/CHANGES.html?#node). However, early returns seem to indicate that the limit was set unexpectedly too low. We will assess the situation and provide a mitigation soon.

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<div class="post-metadata">

**Author:** ![NomadicLabs](https://forum.tezosagora.org/user_avatar/forum.tezosagora.org/nomadiclabs/32/763_2.png) [@NomadicLabs](https://forum.tezosagora.org/u/NomadicLabs)\
**Post date:** [March 31, 2022, 1:21pm UTC](https://forum.tezosagora.org/t/releasing-octez-v12-1/4421/2 "2022-03-31T13:21:18Z")

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The limit on the size of metadata stored by a node, introduced by Octez v12.1, causes some RPCs to occasionally return `"too large"`. This is intended behavior but it is also a breaking change for certain applications including indexers.

We have released [Octez v12.2](https://forum.tezosagora.org/t/releasing-octez-v12-2/4427) which addresses this issue, by making the size limit configurable and increasing its default value.

**Note** : blocks that have been stored using Octez v12.1 are not retroactively filled with the missing metadata.