Hydra update 2023-12-15

blog/2023-12-15-hydra.md

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+---
+title: Hydra Team Update
+slug: 2023-12-15-hydra
+authors: [ch1bo]
+tags: [hydra]
+hide_table_of_contents: false
+---
+
+### High-level summary
+
+This week, the Hydra team identified and resolved issues with a malfunctioning
+head on mainnet, implementing preventive measures. They edited and merged a new
+Architectural Decision Record (ADR) proposed by SundaeLabs, upgraded
+cardano-node to version 8.7.2, and improved the TUI user experience.
+Preparations for "Conway support" were initiated, and updates were made to logs
+and API schemas. Additionally, initial steps were taken towards incremental
+decommits.
+
+### What did the team achieve this week
+
+- Troubleshoot and recover a broken head on mainnet. Opened issue
+  [\#1202](https://github.com/input-output-hk/hydra/issues/1202) and PR
+  avoiding this in-flight
+  [\#1211](https://github.com/input-output-hk/hydra/pull/1211)
+- Designed and proposed a new ADR to generalize `EventSource` and
+  `EventSinks`
+  [\#1157](https://github.com/input-output-hk/hydra/pull/1157),
+  contributed by SundaeLabs.
+- Upgrade cardano-node to 8.7.2
+  [\#1199](https://github.com/input-output-hk/hydra/pull/1199) and
+  re-enables e2e nix-shell support on Darwin
+  [\#1203](https://github.com/input-output-hk/hydra/pull/1203)
+- UX enhancement on TUI
+  [\#1201](https://github.com/input-output-hk/hydra/pull/1201)
+- Preparations for "Conway support"
+  [\#1177](https://github.com/input-output-hk/hydra/issues/1177)
+  \[[\#1206](https://github.com/input-output-hk/hydra/pull/1206) &
+  [\#1207](https://github.com/input-output-hk/hydra/pull/1207)\]
+- Update logs and api schemas
+  [\#1212](https://github.com/input-output-hk/hydra/pull/1212)
+- First steps on incremental decommits
+  [\#1057](https://github.com/input-output-hk/hydra/issues/1057):
+  - Drafted the e2e workflow
+    [\#1205](https://github.com/input-output-hk/hydra/issues/1205)
+  - Added decommit API endpoints
+    [\#1209](https://github.com/input-output-hk/hydra/issues/1209)
+
+### What are the goals of next week
+
+- Detect incompatible blocks and provide better UX
+- Conway support in hydra-node
+- Off-chain logic for incremental decommits