feat: 14-08-2026 release — blip rewrites assigned to Moritz

[morrieinmaas]

Addresses the rows assigned to @moritz Schlichting in the INFO Tech Radar Blips Review Table that were still open. ("AI as a Service — all deletes" was already ticked off by #106.)

7 of the 8 blips. C4 Model is deliberately not in here — see below.

New release folder

New versions in radar/2026-08-14/, not edits to existing files. That follows the convention in this repo (radar/2024-12-01/databricks.md was added the same way; in-place edits are only used for link fixes), so the published 2026-04-23 release and the older history stay intact and the changed blips get CHANGED flags. Rows assigned to Edgar, Cyril and Felix can land in the same folder.

The blips

Blip	Change	Conclusion addressed
BDD	rewritten, retitled from BDD with Gherkin, Cucumber	"BDD and Gherkin only; move other tools out of this blip"
Databricks	trial → adopt	vendor lock-in, US cloud provider dependency, and the alternatives we offer
Event-driven Architecture	rewritten	"update with examples; more specific"
GraphQL	adopt → hold	"creates more problems than it solves; we tried it and prefer not to use it"
Kubernetes	featured: false → true	"put it back to show it on radar; expand a bit"
Valkey / Redis	rewritten, retitled from Redis	"mention Valkey as alternative key-value store"
TanStack Query	rewritten	"still prefer but rewrite because it is now independent of React"

Notes on the judgement calls:

• Databricks leads on our own extensive in-house knowledge and its prevalence among clients who already run it, then sets our equally extensive FOSS lakehouse knowledge against it — which is what we prefer for our own projects. Client choice is framed as an evaluation on existing stack, engineering capacity and budget, not a default.
• Event-driven Architecture is framed as an approach and a way of thinking about systems rather than a "consider using it when" checklist, deliberately without vendor-specific examples.
• GraphQL on hold does not read as abandonment: we still run it in production and can support clients who need it, we just would not pick it for a new project.
• Kubernetes starts from containerising the stack for development and deployment, then spans self-hosted Kubernetes, managed Kubernetes, and serverless containers on managed platforms.
• Valkey / Redis makes Valkey the preference for new solutions while keeping Redis available where a client wants it or where it already runs.
• TanStack Query says why we rate it, not just what it does, and notes that the other TanStack libraries are of the same quality and in use.

C4 Model is not in this PR

The review's conclusion is "rewrite/review; embrace it fully, or delete it — fold into DDD". Folding it into Domain Driven Design means editing DDD, which is Edgar's row, and he is picking that up himself. C4 Model is therefore left completely untouched here, as is the DDD link to it.

This PR has no cross-owner dependency and does not need anyone's sign-off beyond normal review.

Reads coherently with the existing history

Detail pages render every version of a blip stacked under its own date, so each new entry was checked against the older ones rather than only on its own:

• The new Event-driven Architecture entry states the approach once. The 2021 version already explains producer/consumer decoupling and the 2022 version already lists when to consider it, so the new one keeps only what is new — the framing, the stance, and the costs.
• The new Redis and Kubernetes entries lead with what changed instead of restating their previous version's opening sentence.
• The 2022 Event-driven Architecture entry no longer recommends Event Sourcing, a blip removed in chore(radar): remove blips marked 'delete' in the blips review #106, and its "Even-Driven" typo is fixed.
• The 2023 BDD entry drops Cucumber, which we no longer use. Playwright stays — we still use it extensively and it has its own blip.

Verified against a real build

npm run build succeeds.

Check	Result
Broken markdown links, whole repo	0
Broken raw-HTML <a href> links	6 — aws.html ×3, azure ×2, github.html. All pre-existing on main, none in a file this PR touches
/platforms-and-operations/redis after retitle	still resolves — the URL comes from the filename, not the title
/methods-and-patterns/bdd after retitle	still resolves
GraphQL	renders under Hold with a CHANGED flag
Kubernetes	now renders on the chart
Blips on the chart	28 (27 + Kubernetes)
Mentions of Cucumber / Event Sourcing left in radar/	0

[edgarvonk]

looks good!