Posts by firatcelik
Posts by firatcelik
Originally published on DEV.to: https://dev.to/firfircelik/auto-cdf-moved-the-cdc-tax-from-writes-to-reads-delta-cdf-vs-auto-cdf-vs-spark-42-changes-9bb
On September 1, 2026, Databricks made automatic change data feed Auto CDF generally available. T...
Originally published on DEV.to: https://dev.to/firfircelik/duckdb-20-vs-polars-vs-spark-on-one-machine-150m-rows-under-a-45-gib-cap-h38
DuckDB 2.0.0 shipped on October 21, 2026 announcementhttps://duckdb.org/2026/10/21/announcing-duckdb-200, PyPIhtt...
Originally published on DEV.to: https://dev.to/firfircelik/python-315-is-not-a-speed-release-for-data-teams-it-is-an-operations-release-5fbo
Python 3.15.0 shipped on October 9, 2026 release posthttps://blog.python.org/2026/10/python-3150-final-is-he...
Originally published on DEV.tohttps://dev.to/firfircelik/kafka-just-learned-to-be-a-queue-postgres-has-been-one-all-along-2i9g.
On February 17, 2026, Apache Kafka 4.2 shipped with this line in the release announcementhttps://kafka.apache.org/blog/20...
Two PySpark contracts Staff DEs learn on a bad Tuesday: foreachBatch restarts and applyInPandas skew
Originally published on DEV.tohttps://dev.to/firfircelik/two-pyspark-contracts-staff-des-learn-on-a-bad-tuesday-foreachbatch-restarts-and-applyinpandas-skew-39pa.
Your streaming MERGE looked fine in the notebook. Your applyInPandas transform looked...
Originally published on DEV.tohttps://dev.to/firfircelik/fabric-runtime-20-is-becoming-the-default-here-is-what-actually-breaks-12i9.
Fabric Runtime 2.0 is becoming the default. Here is what actually breaks.
Late September 2026 is when Fabric Runti...
Originally published on DEV.tohttps://dev.to/firfircelik/azure-synapse-databricks-a-migration-playbook-that-survives-production-nge.
Azure Synapse → Databricks: A Migration Playbook That Survives Production
A field-style guide for Lead / Senior Dat...
go-intake: Go-Native Streaming Data Ingestion Toolkit
Executive Summary
go-intake is a minimalist, streaming-first ETL toolkit for Go developers that transforms messy data into validated, record-oriented output. With zero third-party dependencies ...
The past 60 days have been brutal for supply chain security:
• 639 malicious versions across 323 packages in ONE hour AntV wave
• A worm with valid SLSA Build Level 3 provenance TanStack
• North Korean APTs injecting malware into "AI-assisted coding...
I released **oteldoctor v0.1.0** — an open-source Go CLI for checking OpenTelemetry Collector config
OpenTelemetry Collector configs are easy to grow and hard to reason about.
A config can be valid and still have production risks:
exporters:
otlphttp:
endpoint: http://backend.example.com
headers:
X-API-KEY: "hardcoded-secret"
o...
On March 31, 2026, the software development and Web3 communities were hit by one of the most severe supply chain attacks in recent history. Axios, an incredibly popular JavaScript HTTP client with an estimated 100 million to over 300 million weekly d...
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