Freshness ledger¶
Auto-generated by .github/scripts/build-freshness-ledger.sh. Last build: 2026-10-21.
Each row shows when a page was last verified against its source of truth. "unknown" means no last-updated frontmatter yet. Aim to re-verify every 180 days.
Certifications¶
| Cert | Last verified | Path |
|---|---|---|
| aws/associate/data-engineer-dea-c01 | 2026-05-03 | exams/aws/associate/data-engineer-dea-c01 |
| aws/specialty/data-analytics-das-c01 | 2026-05-03 | exams/aws/specialty/data-analytics-das-c01 |
| aws/specialty/database-dbs-c01 | 2026-05-03 | exams/aws/specialty/database-dbs-c01 |
| azure/dp-300 | 2026-05-03 | exams/azure/dp-300 |
| azure/dp-420 | 2026-05-03 | exams/azure/dp-420 |
| azure/dp-600 | 2026-05-03 | exams/azure/dp-600 |
| azure/dp-700 | 2026-05-03 | exams/azure/dp-700 |
| azure/dp-900 | 2026-05-03 | exams/azure/dp-900 |
| confluent/certified-administrator | 2026-05-03 | exams/confluent/certified-administrator |
| confluent/certified-developer | 2026-05-03 | exams/confluent/certified-developer |
| databricks/data-engineer-associate | 2026-05-03 | exams/databricks/data-engineer-associate |
| databricks/data-engineer-professional | 2026-05-03 | exams/databricks/data-engineer-professional |
| databricks/lakehouse-platform-administrator | 2026-05-03 | exams/databricks/lakehouse-platform-administrator |
| gcp/cloud-database-engineer | 2026-05-03 | exams/gcp/cloud-database-engineer |
| gcp/data-engineer | 2026-05-03 | exams/gcp/data-engineer |
| mongodb/associate-atlas-administrator | 2026-05-03 | exams/mongodb/associate-atlas-administrator |
| mongodb/associate-dba | 2026-05-03 | exams/mongodb/associate-dba |
| mongodb/associate-developer | 2026-05-03 | exams/mongodb/associate-developer |
| snowflake/snowpro-advanced-administrator | 2026-05-03 | exams/snowflake/snowpro-advanced-administrator |
| snowflake/snowpro-advanced-architect | 2026-05-03 | exams/snowflake/snowpro-advanced-architect |
| snowflake/snowpro-advanced-data-engineer | 2026-05-03 | exams/snowflake/snowpro-advanced-data-engineer |
| snowflake/snowpro-core | 2026-05-03 | exams/snowflake/snowpro-core |
| azure/pl-300 | 2026-08-09 | exams/azure/pl-300 |
| azure/dp-203 | 2026-10-16 | exams/azure/dp-203 |
Concept pages¶
| Concept | Last verified | Path |
|---|---|---|
| eventual-consistency | 2026-05-03 | learn/concepts/eventual-consistency.md |
| queues-vs-streams | 2026-05-03 | learn/concepts/queues-vs-streams.md |
| sql-vs-nosql | 2026-08-09 | learn/concepts/sql-vs-nosql.md |
| batch-vs-streaming | 2026-09-17 | learn/concepts/batch-vs-streaming.md |
| data-modeling-for-analytics | 2026-09-17 | learn/concepts/data-modeling-for-analytics.md |
| data-pipelines-and-orchestration | 2026-09-17 | learn/concepts/data-pipelines-and-orchestration.md |
| data-quality-and-lineage | 2026-09-17 | learn/concepts/data-quality-and-lineage.md |
| etl-vs-elt | 2026-09-17 | learn/concepts/etl-vs-elt.md |
| file-formats-and-partitioning | 2026-09-17 | learn/concepts/file-formats-and-partitioning.md |
| warehouses-lakes-lakehouses | 2026-09-17 | learn/concepts/warehouses-lakes-lakehouses.md |
Hands-on projects¶
| Project | Last verified | Path |
|---|---|---|
| build-data-pipeline | 2026-05-03 | resources/hands-on-projects/build-data-pipeline.md |
| labs-by-cert | 2026-07-29 | resources/hands-on-projects/labs-by-cert.md |
Top-level learn pages¶
| Page | Last verified | Path |
|---|---|---|
| glossary | 2026-05-03 | learn/glossary.md |
| youtube | 2026-05-03 | learn/youtube.md |
| data-from-scratch | 2026-10-21 | learn/data-from-scratch.md |