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title: Debezium 3.7.0.Alpha2 Released | daily.dev
description: Debezium 3.7.0.Alpha2 is out as the second preview of the 3.7 series, bringing an incubating TiDB connector, retry and dead letter queue support for the JDBC...
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# Debezium 3.7.0.Alpha2 Released

**[Debezium](https://daily.dev/sources/debezium)** · 12 min read · 2 upvotes · 0 comments

## Summary

Debezium 3.7.0.Alpha2 is out as the second preview of the 3.7 series, bringing an incubating TiDB connector, retry and dead letter queue support for the JDBC sink, and a proper readiness probe for Debezium Server. Notable breaking changes include the removal of continuous mining for Oracle 12 and removal of the Cassandra 3 connector (Guava bumped to 32.0.0, incompatible with Cassandra 3). Oracle's OpenLogReplicator client is now non-blocking, snapshot-only mode no longer requires archive log config, and the Debezium Platform UI now surfaces pipeline deployment failures. Also included: MariaDB InnoDB-based binary log support, a TINYINT(1) boolean conversion fix for MySQL/MariaDB, SQL Server capture instance selection, PostgreSQL enum sink support, and a PostgreSQL JDBC driver upgrade fixing CVE-2026-54291, among 75 resolved issues.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://debezium.io/blog/2026/08/13/debezium-3-7-alpha2-released>

## Questions this post answers

### What happens to Oracle continuous mining support in Debezium 3.7.0.Alpha2?

Continuous mining for Oracle 12 has been removed entirely from the Oracle connector in Debezium 3.7.0.Alpha2. Oracle itself deprecated continuous mining in 12c and permanently removed it in 19c, and Debezium only ever supported it on a best-effort basis. Anyone still using continuous mining with Oracle 12c must switch to the LogMiner adapter, the recommended capture mode, before upgrading.

_Teams planning an Oracle CDC upgrade can track breaking changes like this one on daily.dev before they hit production._

### Why was the Cassandra 3 connector removed from Debezium?

The Cassandra 3 connector was removed in Debezium 3.7.0.Alpha2 because Cassandra 3 reached end of life. As part of the removal, the Guava dependency was upgraded to version 32.0.0, which is incompatible with Cassandra 3 but matches Cassandra 4 and later requirements. Anyone still on the Cassandra 3 connector must upgrade to Cassandra 4 or 5, both of which remain fully supported, before adopting this release.

_Engineers migrating Cassandra CDC pipelines can follow dependency and connector changes like this via daily.dev._

### Does the Debezium JDBC sink connector support retries and dead letter queues?

Yes, as of Debezium 3.7.0.Alpha2 the JDBC sink connector supports automatic retries with configurable backoff for transient database errors, plus dead letter queue integration for records that fail after all retries. Previously any SQL exception immediately stopped the sink task and required manual restart, so this makes JDBC sink deployments notably more resilient in production against transient connectivity or constraint issues.

_Developers hardening JDBC sink pipelines against transient failures can follow connector updates like this on daily.dev._

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---

Tags: [#backend](https://daily.dev/tags/backend), [#oracle](https://daily.dev/tags/oracle), [#apache-kafka](https://daily.dev/tags/apache-kafka), [#change-data-capture](https://daily.dev/tags/change-data-capture), [#debezium](https://daily.dev/tags/debezium)

[View this post on daily.dev](https://daily.dev/posts/debezium-3-7-0-alpha2-released-9p8szrw3k)

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