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Doing it again, twenty years later: introducing Quill

Doing it again, twenty years later: introducing Quill

September 9, 2026

I started RavenDB in a spare bedroom, because of a problem that wouldn't let me sleep. Everywhere I looked, applications were fighting their own database. ORMs papering over a model that didn't fit. Indexes missing or just bolted on after production failures, without attention or concern to how to do this properly.That was the common situation in…

Use Cases
Adept Concept: Architectural Simplicity and 60% Faster Speed: Adept Concept’s Shift from Parallel Infrastructure to RavenDB

Adept Concept: Architectural Simplicity and 60% Faster Speed: Adept Concept’s Shift from Parallel Infrastructure to RavenDB

August 24, 2026

Case Study: Adept Concept’s Journey with RavenDB’s Built-in AI. Adept Concept helps organizations manage compliance through an AI-driven platform that digitizes standards, links them to internal procedures, and automatically evaluates coverage and gaps. As their AI engine grew in scope - processing vast regulatory changes and customer documentation - they needed a faster, more dependable system to support next-generation AI capabilities.…

Blog
Database research, frontier AI, and idiot savants, oh my!

Database research, frontier AI, and idiot savants, oh my!

August 21, 2026

I’m currently working on a pretty deep optimization cycle in how RavenDB and Voron (its storage engine) handle I/O. The idea is to be able to squeeze more performance out of the system by being able to utilize a lot of moving pieces at once (parallelizing compute, durable I/O, async I/O, etc.).At the end of the day, however, it all must reside on…

Blog
Contextual embedding in RavenDB (or how to save 220,000,000 USD)

Contextual embedding in RavenDB (or how to save 220,000,000 USD)

August 3, 2026

A while ago, MongoDB purchased VoyageAI for 220 million dollars. Since then, they have released a couple of dedicated embedding models. For example, you can read their blog post on voyage-context-4.The key premise in those sorts of models is that you can feed the model text of any size, and it will automatically handle generating embedding…

Articles
Four Ways RavenDB Just Made Your Life Easier

Four Ways RavenDB Just Made Your Life Easier

July 27, 2026

Highlights Sign in to RavenDB Studio with Google, GitHub, Microsoft Entra ID, or Windows Kerberos.Pull Azure Service Bus messages directly into RavenDB without writing consumer code. Use ETL and AI Task Health views to spot pipeline issues faster and understand where they failed.Most of what makes a database hard to run isn't the database. It's…

Blog
The cost of a free feature

The cost of a free feature

July 10, 2026

About twenty years ago, I was working on what would eventually become RavenDB, and I needed an engine to handle queries. Writing a query engine from scratch is its own very large project, quite separate from writing a database engine. I made a decision that I still consider one of the smartest I made in those early days: I built on top of Lucene…

Blog
Multi-Agents in RavenDB

Multi-Agents in RavenDB

July 7, 2026

I've written before about why I think the “modern” approach of solving every problem by adding agents is a doomed path. The current instinct is to add more layers of agents, judges, reviewers, etc. - and hope the model will be smart enough to do the right thing and actually get something done.The issue is that we already have a well-understood way…

Blog
The best code is the one you shift+delete

The best code is the one you shift+delete

July 3, 2026

Everyone talking about coding models fixates on the same number: how fast the thing generates code. This misses the point by a lot. The story isn't about how fast the model writes code I would have written anyway. It's that the model lets me do things that I might have done before but were expensive enough that I didn’t bother. I had three…

Articles
No more surprises: Newest RavenDB Update

No more surprises: Newest RavenDB Update

June 29, 2026

Highlights: RavenDB Cloud’s new Serverless tier auto-scales CPU up and down within a range you define. Range-based pricing helps keep cloud database costs more predictable. Azure Premium SSD v2 support lets you scale IOPS and throughput without buying larger disks. Friday. 4:55 PM. And you’re about to close your laptop (your work…

cloudazure
Blog
"Optimizing" concurrent regexes

"Optimizing" concurrent regexes

June 19, 2026

I am looking into some regex work, and I ran into a performance problem. I need to run a particular regex over a large number (millions) of strings. That caused my spidey sense to… tingle. The code in question looked something like this:long matches = CountMatchingEntries(new Regex(@"\s+user id\s+"));Creating a regex for each invocation is……

Blog
Non obvious optimization with divide and conquer

Non obvious optimization with divide and conquer

June 16, 2026

Deep in the heart of Corax (RavenDB’s querying engine), everything deals with something called a Posting List. Posting Lists are a way for the engine to say “all of those documents have the term Fast for the field Speed”.  Conceptually, a Posting List is an ordered set of document ids. In this case (and this is important, the ids in question are…

Blog
Putting Claude up against our test suite

Putting Claude up against our test suite

April 29, 2026

I’m convinced that in hell, there is a special place dedicated to making engineers fix flaky tests. Not broken tests. Not tests covering a real bug. Flaky tests. Tests that pass 999 times out of 1000 and fail on the 1,000th run for no reason you can explain with a clean conscience.If you've ever shipped a reasonably complex distributed system, you…

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