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Dev Status Update - January, 2021

Published by the IOTA dev team every month, this update will provide you with news and updates about our key projects! Please click here if you want to see the last status update.

The research department is also releasing a monthly update that you might want to read.

IOTA 1.5

IOTA 1.5 (also known as Chrysalis) is the mainnet’s intermediate stage before Coordicide is complete. You can read more about the strategy for releasing Chrysalis here.

The Chrysalis phase 1 components were deployed to mainnet in August. The engineering team is now working on Chrysalis phase 2.

Implementing Chrysalis phase 2

Last month, we made the Chrysalis testnet open to the public. This allows us to test all the Chrysalis components in the open, as well as add the remaining capabilities and products to the mix. Several fixes have been introduced in the testnet in the past month, one of them resolving a confirmation rate issue, which has been close to 100% for the past weeks. Overall, the testnet has been very stable.

Users will be able to test the Bee node software on the testnet next week. And Firefly will join in in the near future as well.

Most of the protocol changes are either already implemented or being implemented as we speak. With audits on the protocol level ongoing.


The team released the 0.3.5 update yesterday. The update focuses on security and reliability. The GoShimmer team is now focusing on the next milestones, Tangle refactoring, Mana, finality, congestion control, and more.

You can read more about Pollen, Nectar, and Honey, concepts we introduced to talk about the milestones on the path to Coordicide, in this post.

You can follow the project on its GitHub repository. If you want to get involved, check out our updated contributing guidelines.


The Bee team has finished a large part of the implementations necessary for Chrysalis phase 2. This includes all the new node APIs, message pro...

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