Hydra

Author: noonio

blog/2025-04-29-hydra.md

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+---
+title: Hydra Team Update
+slug: 2025-04-29-hydra
+authors: [noonio]
+tags: [hydra]
+hide_table_of_contents: false
+---
+
+### High-level summary
+
+We're very happy to have release 0.21.0; featuring many big changes. Check out
+the full release notes here: [Hydra
+0.21.0](https://github.com/cardano-scaling/hydra/releases/tag/0.21.0). We
+continue working on supporting the Glacier Drop; the Blockfrost chain layer,
+fixing some bugs in the incremental commit workflow (please consider this
+feature in beta until these are fixed), among other day-to-day improvements.
+
+### What did the team achieve?
+
+* Released version [0.21.0](https://github.com/cardano-scaling/hydra/milestone/22)! With a tonne of new features.
+* Completed example of withdraw-zero based sha512 trick [#1933](https://github.com/cardano-scaling/hydra/issues/1933).
+* Progress on Blockfrost chain layer [#1305](https://github.com/cardano-scaling/hydra/issues/1305).
+* Investigated a feature to "Re-open" a closed head; decided against implementing it for security reasons.
+* Continued work on fixes to the deposit workflow [#1951](https://github.com/cardano-scaling/hydra/issues/1951)
+
+### What's next?
+
+* Finished new deposit check [#1951](https://github.com/cardano-scaling/hydra/issues/1951)
+* Fix "UX" bug when changing peers on a previously-configured hydra-node [#1937](https://github.com/cardano-scaling/hydra/issues/1937)
+* Work on a simple endpoint to check head status [#1957](https://github.com/cardano-scaling/hydra/issues/1957)
+* Continued work on a full Blockfrost chain layer [#1305](https://github.com/cardano-scaling/hydra/issues/1305)
+* Reinstate Kupo support [#1785](https://github.com/cardano-scaling/hydra/issues/1785)
+* Investigate bug allowing fan-out [#1476](https://github.com/cardano-scaling/hydra/issues/1476)
+* Investigate event-log rotation [#1581](https://github.com/cardano-scaling/hydra/issues/1581)
+* Continue to focus on supporting the Glacier drop